Created
November 3, 2018 00:08
-
-
Save sarchak/5ad09365b6cfcd8a036ce65f469e73a7 to your computer and use it in GitHub Desktop.
We can't make this file beautiful and searchable because it's too large.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| post,tags | |
| conventions of importing python main programs often i write command line utilities that are only meant to be run as main. for example i might have a file that looks like this: <pre><code>#!/usr/bin/env python if __name__ == __main__ : import sys # do stuff </code></pre> in other words there is nothing going on that isn t under the if statement checking that this file is being run as main. i tried importing a file like this to see what would happen and the import was successful. so as i expected one is allowed to import files like this but what is the convention surrounding this practice is one supposed to throw an error telling the user that there is nothing to be imported or if all the contents of the file are supposed to be run as main does one need to check if the program is being run as main or is the conditional not necessary also if i have import statements should they be at the top of the file or under the conditional if the modules are only being used under the conditional it would seem to me that they should be imported under the conditional and not at the top of the file.,python | |
| python write to file based on offset i want to create a python program which splits up a files into segments of specified width and then a consumer program takes the segments and creates a duplicate of the original file. the segments might be out of order so i intent to use the offset value to write to the file. is there a way i can achieve this with without creating a local array to hold all the data on the receiving end for example <pre><code>f = open(file wb ) f.seek(offset) f.write(data) </code></pre> the idea behind this is that the program that sends the file might not be able to finish sending the file and will resume again once it has started. i have a sample code below which the combine_bytes function throws an exception when i try placing data in the buffer location. <pre><code>import sys import os def splitfile(fname start end width): t_filesize = os.path.getsize(fname) buffdata = bytearray(t_filesize) for line offset in get_bytes(fname int(start) int(end) int(width)): combine_bytes(buffdata offset line width) nums = [ %02x % ord(c) for c in line] print .join(nums) f = open( green_copy.jpg wb ) f.write(buffdata) f.close() def combine_bytes(in_buff in_offset in_data in_width): #something like memcpy would be nice #in_buff[in_offset:in_offset + in_width] = in_data #this works but it s the mother of inefficiency i = in_offset for c in in_data: in_buff.insert(i c) i = i + 1 def get_bytes(fname start end width): t_curroffset = start t_width = width f = open(fname r+b ) if end != 0: while t_curroffset < end: f.seek(t_curroffset) if (t_curroffset + t_width) > end: t_width = end - t_curroffset t_data = f.read(t_width) yield t_data t_curroffset t_curroffset += t_width else: f.seek(t_curroffset) t_data = f.read(t_width) while t_data: yield t_data t_curroffset t_curroffset += t_width f.seek(t_curroffset) t_data = f.read(t_width) f.close() if __name__ == __main__ : try: splitfile(*sys.argv[1:5]) except: print unexpected error: sys.exc_info()[0] </code></pre>,python | |
| enable a textbox on the selection of no from the drop down menu i have a drop down menu where i have three options yes no and later.and when i select no option then the textbox must enable which was previously disable.so help me with some javascript script and explain me how can i call the script from the form.,javascript | |
| sending mms and email from within app how does one get the pop up menu selection for email mms etc which is used when an image is selected on the iphone. <img src= https://i.stack.imgur.com/kvk2m.png alt= menu > another thing how can one add things to this menu e.g. facebook share twitter share what is the name of this menu,iphone | |
| why aren t java weak references counted as references during garbage collection why are java weak references not counted as references with respect to garbage collection,java | |
| uiview is shown displaced at the top of the screen ok hopefully a stupid question from a newbie... i have an app that used to display fine base on xib files created in ui builder. the .xib still displays fine using the simulator direct from the uib but when compiled and run the view is displaced by 40 or 50 pixels (about 1/3 the width of a nav bar) so that i get a bar of white space at the bottom and half my title text hidden on the nav bar at the top. i have tried fiddling with various parameters for the view and main window (eg layout wants full screen and resize view from nib) but nothing seems to make any difference. i tried upgrading xcode from 3 to 4 but no difference. any pointers gratefully received...,iphone | |
| python display several variables after % folks cant seem to remember the correct syntax for displaying 2 or more variables in the following format: <pre><code>log.debug ( %s %s % hostname % processoutput[0]) </code></pre> thanks!,python | |
| python input string error (don t want to use raw_input) i have a menu that asks for the user to pick one of the options. since this menu is from 1 to 10 i m using input besides raw_input. my code as an if statement that if the number the user inputs is from 1 to 10 it does the option. if the user inputs any number besides that ones the else statement says to the user pick a number from 1 to 10. the problem is if the user types an string lets say for example qwert. it gives me an error because its an string. i understand why and i don want to use raw_input. what can i do to wen the user types a string it goes to my else statement and print for example only numbers are valid. pick a number from 1 to 10 i don t want to use any advanced programing to do this regards favolas <strong>edit</strong> thanks for all your answers and sorry for the late response but i had some health problems. i couldn t use try or except because my teacher didn t allow it. in the end i ve used raw_input because it was the simplest alternative but was glad to see that are many ways to solve this problem. regards favolas,python | |
| how to encode image to base64 in javascript in the code below i m fetching a .txt file and it is getting encoded without giving an error so oi want to use the same thing and also convert an image into basse 64 <pre><code>// adding attachment function opensavedialog() { var nsifilepicker = components.interfaces.nsifilepicker; var fp = components.classes[ @mozilla.org/filepicker;1 ].createinstance(nsifilepicker); fp.init(window select a file nsifilepicker.modeopen); fp.appendfilters(nsifilepicker.filterhtml | nsifilepicker.filterimages); fp.appendfilters(nsifilepicker.filtertext | nsifilepicker.filterall); var rv = fp.show(); if (rv == nsifilepicker.returnok || rv == nsifilepicker.returnreplace) { var file = fp.file; var path = file:// + fp.file.path; readtextfile(path); document.getelementbyid( filename ).value = file.leafname; } } // encoding text to base64 function readtextfile(filepath) { var rawfile = new xmlhttprequest(); rawfile.open( get filepath false); rawfile.onreadystatechange = function() { if (rawfile.readystate == 4) { if (rawfile.status == 200 || rawfile.status == 0) { var alltext = rawfile.responsetext; alert(alltext); encodedata = window.btoa(alltext); } } }; rawfile.send(null); } </code></pre>,javascript | |
| str object is not callable. encode and decode message i am new to python and programming in general. i was trying to encode and decode a message but this mistake occurs. what does it mean how to fix it <pre><code> def main(): mes=input( enter the message to encode ). key= int(input( enter the key ). print(chr(ord(chr)+key) for chr in mes) main() </code></pre>,python | |
| change java object type during the runtime of my programme i would like to identify the type of an object i would need to instantiate. as an example: if a user is travelling from a to b he can choose a transport method: car or push bike both will enable the user to travel but the actual work processes are different. in a car you need to shift gears to move on a bike you need to paddle. they would have a common set of methods ie: move but their implementation would be different. the rest of the programme doesn t need to know how move is implemented... imagine: <pre><code>public class transport { public object transportmethod; public transport(tmet) { if (tmet.equals( car )) { transportmethod = new car(); } else if (tmet.equals( bike )) { transportmethod = new bike(); } } public object returntransportmethod() { return transportmethod(); } } </code></pre> how can i now use the bike or car methods when i pass transportmethod back to another class thanks! chris,java | |
| undefined when evaluating two string variables in javascript this program seems to work fine until i have two inputs that are strings. the result that is given back is undefined . why is this the case how could i get the output to be: return can\ t compare relationship because + x + and + y + are not numbers <pre><code>function getrelationship(x y) { var notdigit = isnan(x) + isnan(y); if(x==y && notdigit==false){ return = ; }else if(x>y && notdigit==false){ return > ; }else if(x<y && notdigit==false){ return < ; }else if(notdigit==true){ return notnumber(x y); }; }; function notnumber(x y) { xnotdigit = isnan(x); ynotdigit = isnan(y); if(xnotdigit == true){ return can\ t compare relationship because + x + is not a number }else if(ynotdigit == true){ return can\ t compare relationship because + y + is not a number }else if(xnotdigit == true && ynotdigit == true){ return can\ t compare relationship because + x + and + y + are not numbers }; }; console.log(getrelationship( dfad dfd )); </code></pre>,javascript | |
| directory folder name to put user defined packages in tomcat 7 i am new to java and jsp. i have just created a small package and that package contains a simple java class. let me show what i really want to do. i am not working with servlets so please tell me about this simple example so that i can go ahead with my work. below is my code or a package class and a jsp page. <strong>my java package</strong> <pre><code>package mypack; //this is my package public class abc{ public abc(){ } public void message(){ system.out.println( my first java package ); } } </code></pre> <strong>index.jsp</strong> this is my jsp page where i need to use this package <pre><code><%@ page import= java.sql.* %> <%@ page import= mypack.* %> <% abc a = new abc(); a.messsage(); %> </code></pre> i was using jdk1.5 and tomcat 3. but i want to update my system. now i have jdk1.7.0_11 and tomcat 7. i know the path of tomcat 3 to put my packages but i don t know where to put these packages in tomcat 7. <strong>tomcat 3 directory path to place packages:</strong> <pre><code>d:\java\tomcat\examples\web-inf\classes //i put my package at this path in tomcat3 </code></pre> <strong>tomcat 7 directory path to place packages:</strong> <pre><code>d:\web\tomcat 7.0\webapps\root\web-inf //trying to put my package in here but no use. </code></pre> i could not find the classes folder under the direcoty web-inf in tomcat 7. i made a folder myself named classes inside of web-inf but it does not work. even i have deleted that my classes folder and put my package in web-inf but it does not work. please tell me the path where i can put my java package in tomcat server 7. i have placed my jsp page in here: <pre><code>d:\web\tomcat 7.0\webapps\root\a //folder a contains my jsp file. index.jsp and its working </code></pre> problem is jsp page could not find the package. please help me out with this.,java | |
| access to propertyname of object itself as string i have object define like this <pre><code>var obj = { abcdefghijkl: abcdefghijkl other_key: 1234 }; </code></pre> can i define object for get property name itself as string in javascript like this <pre><code>var obj = { abcdefghijkl: getselfpropertyname other_key: 1234 }; </code></pre> i don t want for <code>this.abcdefghijkl</code>,javascript | |
| attaining the correct number of a characters in the string i am trying to write a small program that takes a <code>string</code> sentence (given in <code>main method</code>) and calculates the number of upper case characters and number of a s. i am having a bit of trouble with the second part. while there are no doubt multiple ways to write the program i have written <code>for loops</code> that trace through the <code>string</code> and do my work. it works fine for calculating the uppercase values but for the a s it is counting every letter as one. i may be going crazy. <pre><code>public class countcharacters { public static void main(string[] args) { charcount( how many upper case letters a s and 0-9 digits are there in this string ); } public static void charcount(string b) { int upper = 0; int a = 0; for (int i = 0; i < b.length(); i++) { char v = b.charat(i); if (character.isuppercase(v)) { upper++; } } for (int i = 0; i < b.length(); i++) { char t = b.charat(i); if (character.isletter( a )) { a++; } } system.out.println( there are + upper + upper case letters and + a + lower case a s in the string ); } } </code></pre>,java | |
| will apple reject apps that make use of the device id. i have developed an app that make use of the iphone device id and sends the same to a webservcise as primarily my app uses device id to prevent unauthorised device access. but i am in doubt whether apple will reject the app bacause of this... pls can anyone clarify my doubt...,iphone | |
| datetime to second conversion i have two datetime string like this 2010-08-31 04:35:50.176725 and 2010-09-05 04:35:50.176725 . now my question is how calculate seconds between two dates. i used time delta but its return in hour minute formate. i want compltely in seconds.,python | |
| countdown timer is not showing in javascript i am new in javascript i want to create a countdown timer with localstorage which starts from given time and end to 00:00:00 but it s not working when i am running my code it is showing value 1506 . here is my code <pre><code><script type= text/javascript > if (localstorage.getitem( counter )) { var currenttime = localstorage.getitem( counter ); } else { var hour = 3; var minute = 25; var second = 60; var currenttime = hour.tostring() + : + minute.tostring() + : + second.tostring(); } function countdown() { document.getelementbyid( lblduration ).innerhtml = currenttime; second--; if (second == -1) { second = 59; minute--; } if (minute == -1) { minute = 59; hour--; } localstorage.setitem( counter currenttime); } var interval = setinterval(function () { countdown(); } 1000); </script> </code></pre>,javascript | |
| error in sonar rule wrt below code while for below code we are getting error in sonar: <pre><code> entitybuildermap = maps.newhashmap(); </code></pre> giving error in sonar as: <blockquote> dodgy - write to static field from instance method </blockquote> can some one suggest how to fixed it out,java | |
| tip rather than question: pseudo-push functionality through pushed email i was just wondering if anybody was using this technique: since push notifications will only be coming with os 3.0 i ve been thinking of using email pushs (exchange mobile.me) as a workaround: you can register a url eg. myxyappname:// for your own app in iphone. (see examples @ developer.apple.com/iphone) if you have a server and want to push something app-specific to your subscribers you can just send them an email containing a specific link eg. myxyappname://myxyappname requesttype=x&id=y when the user receives the email (pushed so should be fast...) and clicks on the mentioned link your app will start on the iphone automatically (if your app registered the url correctly) and within your app you can parse the url and display the corresponding info based on the query string. old fart,iphone | |
| settimeout doesn t work when closure is included so i have this piece of code... <pre><code> var string = qwe ; document.addeventlistener( click function(e){ function bar(b){ var a = string[b]; if (a == q ) { console.log( first ); } if (a == w ) { console.log( second ); } if (a == e ) { console.log( third ); } } settimeout( bar(0) 1000 ); }); </code></pre> problem is settimeout doesn t work. code executes right after clicking. it s weird because if i avoid using the closure it works... <pre><code>settimeout(function bar(){ var a = string[0]; //...everything else } 1000 ); </code></pre> but that would probably make the code messy/redundant since i plan on doing it 3 times. ideally the working code would be... <pre><code>settimeout( bar(0) 1000 ); settimeout( bar(1) 2000 ); settimeout( bar(2) 3000 ); </code></pre> but again setting timeout like this doesn t work for some reason :/ any ideas why,javascript | |
| how can move from one tabviewcontroller to another tabviewcontroller i ve a problem that when i go to any viewcontroller of second tabbar button then i need to come first tabviewcontroller. but i can t in my one view of first tabbar comes to second tabbar button.pls someone help me.,iphone | |
| onchange disable textarea php this is my form and i need to disable the textarea if the option city2 is selected and enable the textarea if the other options are selected. <pre><code><!doctype html public -//w3c//dtd xhtml 1.0 transitional//en http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd > <html xmlns= http://www.w3.org/1999/xhtml > <head> <meta http-equiv= content-type content= text/html; charset=iso-8859-1 /> <title>untitled document</title> <script type= text/javascript > var cityselect = document.getelementbyid( city ) descriptiontextarea = document.getelementbyid( description ); cityselect.addeventlistener( change function() { descriptiontextarea.disabled = cityselect.selectedindex == 1; } false); </script> </head> <body> <form method= post name= areaform id= areaform > <select name= city id= city > <option value= city1 >city1</option> <option value= city2 >city2</option> <option value= city3 >city3</option> </select><br /> <br /> <textarea name= description id= description cols= rows= style= width:150px; height:50px; ></textarea> </form> </body> </html> </code></pre> how can i do that,javascript | |
| suspend app option i have an app that i have and i have it set to not run in background but a number people want to option to have it resume from where they left off and a number of people just want it to start from the beginning when they tap the home button and restart to app. how do i add an on/off switch to give the user the option my app is a educational / reference app with flashcards and pdfs. thanks j,iphone | |
| iphone sdk: how to set the initial value of a uipickerview i have a picker view that has a list of numbers to pick from. i want to be able to initialize the control at a particular row. for example if the user specifies 10 as their default then the control should be automatically positioned at that row when the control is first initialized. thanks in advance.,iphone | |
| "concatenate variable in function name - javascript im trying to build a for loop so i dont waste code lines by repeating the same code for a function but im not doing it right i need help on how to concatenate my loop variable (i) so i can change the name of the function. here is my function code: <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code><script> | |
| for (i = 1; i < 90; i++) { | |
| var nome = window[ mostra + i]; | |
| function nome() { | |
| document.getelementbyid( form +i).style.display= block ; | |
| document.getelementbyid( texto +i).style.display= none ; | |
| } | |
| </script></code></pre> | |
| </div> | |
| </div>",javascript | |
| python for data analysis book chapter 2 error in reading records i am learning python for data analysis from o reilly s book <a href= http://shop.oreilly.com/product/0636920023784.do rel= nofollow noreferrer >python for data analysis</a>. i am getting following error in command prompt when i am running this command <code> records = [json.loads(line) for line in open(path)] </code> <pre><code>unicodedecodeerror: utf8 codec can t decode byte 0x92 in position 6:invalid start byte </code></pre> please guide me on how to solve it. thanks.,python | |
| how to draw a line on top of an image when finger moves on iphone i am trying to draw a line on top of a background image in my uiview tracing the movements of the user s finger. i can accomplish this by drawing the uiimage as my background and then doing my line drawing in drawrect but i have to load the image each time drawrect is called and it makes performance sluggish. alternatively if i use a uiimageview as my background image (just adding it to the view in ib or programatically) the lines disappear when it is dragged over the image. is there a way to tell the lines to draw on top of the uiimageview. thanks for your help. here is my code using the uiimage method: <pre><code>- (void)drawrect:(cgrect)rect { uiimage *imagefield = [uiimage imagenamed:@ field.jpg ]; cgrect rectforimage=cgrectmake(0 0 200 200); [imagefield drawinrect:rectforimage]; cgcontextref context = uigraphicsgetcurrentcontext(); cgcontextmovetopoint(context x1 y1); cgcontextaddlinetopoint(context x2 y2); cgcontextstrokepath(context); } </code></pre>,iphone | |
| im trying to get key input to work by getting and setting x/y values but it isnt working i know that the the image is drawing constantly but the x/y coordinates arent changing which doesnt let the image move.. why is this happening and what can i do to fix it <pre><code>import java.awt.*; public class gamestate extends state { private player player; private int playerx = 1440/2 - 14 playery = 810/2 - 14; public gamestate(superhexagongame game) { super(game); player = new player(playerx playery); } public void tick() { player.tick(); } public player getplayer() { return player; } public void render(graphics g) { g.drawimage(assets.bg1 0 0 null); player.render(g); } } </code></pre> player class <pre><code>import java.awt.*; public class player extends creature { public player(int x int y) { super(x y); } public void tick() { } public int getx() { return x; } public int gety() { return y; } public void setx(int x) { this.x = x; } public void sety(int y) { this.y = y; } public void render(graphics g) { system.out.println(y); g.drawimage(assets.player1 x y null); } } </code></pre> key input class that checks for key input. im trying to get it to set the xy values in the player class by getting the current xy value and adding/subtracting 75 <pre><code>import java.awt.event.*; public class keyinput extends keyadapter { private player player = new player(1440 / 2 - 14 810/2 - 14); public void keypressed(keyevent e) { int key = e.getkeycode(); system.out.println(key); if (key == keyevent.vk_up) { //decrement y by 75 player.sety(player.gety() - 75); } if (key == keyevent.vk_down) { //increment y by 75 } if (key == keyevent.vk_left) { //decrement x by 75 } if (key == keyevent.vk_right) { //increment x by 75 } } } </code></pre> i know the program is getting keyboard input (arrow keys) because when pressing a key it displays the keycode into console it but it isn t setting the xy values to the new xy values for movement. i only have the code done for up arrow key because i wanted to make sure it worked before copy pasting.,java | |
| adding /putting share buttons of facebook twitter in your iphone application have anyone worked with buttons such as share on facebook twitter email download .please reply.,iphone | |
| python prints different value each iteration but value is not changed. i cannot wrap my head around why my python code acts in a certain way. since i do not change current the output should be the same for each iteration this is a problem because i need current to be the same so each node is generated from the same start-value. see the following code: tester.py <pre><code>class node: def __init__(self board=none): self.board = board def getboard(self): return self.board def swap(self xpos ypos): # swap with zero for a in self.board: if 0 in a: self.board[self.board.index(a)][a.index(0)] = self.board[xpos][ypos] self.board[xpos][ypos] = 0 open = [] def gen_nodes(current): for i in [7 15 11]: print(current) # <-- why does this print a different value each time new = node(current) for a in new.getboard(): if i in a: xpos = new.getboard().index(a) ypos = a.index(i) new.swap(xpos ypos) open.append(new) if __name__ == __main__ : gen_nodes([[1 2 3 4] [8 5 6 7] [9 10 11 0] [12 13 14 15]]) </code></pre> output: <pre><code>[[1 2 3 4] [8 5 6 7] [9 10 11 0] [12 13 14 15]] [[1 2 3 4] [8 5 6 0] [9 10 11 7] [12 13 14 15]] [[1 2 3 4] [8 5 6 15] [9 10 11 7] [12 13 14 0]] </code></pre>,python | |
| need javolution and jdk version i want to know the javolution and jna jar version which is supported by jdk 1.4. thanks in advance.,java | |
| showing progress view in corresponding cell when click a download button in a tableview cell i am new to iphone.i am struck in my project at some task (i.e) i have a table view with 66 rows.in that i am placed different book names for each cell and place a download button to each book.my requirement is when we click on download button it shows the progress view in that particular cell only but i am getting in that particular cell but when i am drag the tableview it will shows the progress views in some that cells also.it is because of dequeue reusability concept but i dont know how to avoid this problem.i want even after drag the tableview it shows the progress view on the cell which i am click the download button (cell) here is my code below.. <pre><code>- (nsinteger)numberofsectionsintableview:(uitableview *)tableview { // return the number of sections. return 1; } - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section { return 66; } - (uitableviewcell *)tableview:(uitableview *)_tableview cellforrowatindexpath:(nsindexpath *)indexpath { static nsstring *cellidentifier = @ cell ; uibutton *downloadbutton = nil; customcell *cell = [_tableview dequeuereusablecellwithidentifier:cellidentifier]; if (cell == nil) { //here custom cell is another class in that we have the title label declaration cell = [[customcell alloc] initwithstyle:uitableviewcellstylesubtitle reuseidentifier:cellidentifier]; downloadbutton = [uibutton buttonwithtype:uibuttontypecustom]; downloadbutton.frame = cgrectmake(220 10 50 30); [downloadbutton setimage:[uiimage imagenamed:@ download.png ] forstate:uicontrolstatenormal]; [downloadbutton addtarget:self action:@selector(downloadbuttonclicked:) forcontrolevents:uicontroleventtouchupinside]; downloadbutton.backgroundcolor = [uicolor clearcolor]; downloadbutton.userinteractionenabled = yes; downloadbutton.highlighted = yes; downloadbutton.tag = indexpath.row; nslog(@ tag is %d indexpath.row); [cell.contentview addsubview:downloadbutton]; } nsstring *titlelabel = [[appdelegate getbooknames]objectatindex:indexpath.row]; cell.titlelabel.text = titlelabel; return cell; } -(void)downloadbuttonclicked:(id)sender{ int index = [sender tag]; nslog(@ index of the cell is %d index); uibutton *button = (uibutton*)sender; uitableviewcell *cell = (uitableviewcell *)[[button superview] superview]; uilabel *titlelabel = (uilabel *)[cell viewwithtag:100]; nslog(@ label text =%@ titlelabel.text); selectedbooktitle = titlelabel.text; nsstring* documentspath = [nssearchpathfordirectoriesindomains(nsdocumentdirectory nsuserdomainmask yes) objectatindex:0]; nsmutablearray *alldownloadlinks; bibleplayerviewcontroller = [[bibleplayerviewcontroller alloc]init]; alldownloadlinks = [bibleplayerviewcontroller alldownloadlinks]; nslog(@ all download links are %@ alldownloadlinks); bibleplayerviewcontroller.indexofselectedbooktitle = [[appdelegate getbooknames]indexofobject:selectedbooktitle]; download* download = [download downloadwithtitle:selectedbooktitle url:[nsurl urlwithstring:[nsstring stringwithformat:@ http://www.audiotreasure.com/%@.zip [alldownloadlinks objectatindex:(bibleplayerviewcontroller.indexofselectedbooktitle)]]]pathtosave:documentspath]; [[downloadmanager shareddownloadmanager] queuedownload: download]; uitableviewcell *tableviewcell = [tableview cellforrowatindexpath:indexpath]; progressview.frame = cgrectmake(10 40 300 20); [tableviewcell.contentview addsubview:progressview]; } </code></pre> <a href= http://i.stack.imgur.com/f9rdi.png rel= nofollow >screen shot</a> of my project is [output of my above code which is in simulator],iphone | |
| construct tuple from dictionary values given a python a list of dictionary of key-value pairs i.e. <pre><code>[{ color : red value : high } { color : yellow value : low }] </code></pre> how to construct a list of tuples from the dictionary values only: <pre><code>[( red high ) ( yellow low )] </code></pre>,python | |
| formatting perfectly with printf in java i m trying to make my program print out a bill of three items with their names quantities and prices. everything works fine all i need is how to formate the prices and totals in order to make all the decimals line up everytime no matter how big the number. here s my code <pre><code> import java.util.scanner; class assignmentonetest { public static void main(string[] args) { scanner kb = new scanner(system.in); // system.out.printf( $%4.2f for each %s price item); // system.out.printf( \nthe total is: $%4.2f total); //process for item one system.out.println( please enter in your first item ); string item = kb.nextline(); system.out.println( please enter the quantity for this item ); int quantity = integer.parseint(kb.nextline()); system.out.println( please enter in the price of your item ); double price = double.parsedouble(kb.nextline()); //process for item two system.out.println( please enter in your second item ); string item2 = kb.nextline(); system.out.println( please enter the quantity for this item ); int quantity2 = integer.parseint(kb.nextline()); system.out.print( please enter in the price of your item ); double price2 =double.parsedouble(kb.nextline()); double total2 = quantity2*price2; // system.out.printf( $%4.2f for each %s price2 item2); // system.out.printf( \nthe total is: $%4.2f total2); //process for item three system.out.println( please enter in your third item ); string item3 = kb.nextline(); system.out.println( please enter the quantity for this item ); int quantity3 = integer.parseint(kb.nextline()); system.out.println( please enter in the price of your item ); double price3 = double.parsedouble(kb.nextline()); double total3 = quantity3*price3; // system.out.printf( $%4.2f for each %s price3 item3); // system.out.printf( \nthe total is: $%4.2f total3); double total = quantity*price; double grandtotal = total + total2 + total3; double salestax = grandtotal*(.0625); double grandtotaltaxed = grandtotal + salestax; string amount = quantity ; string amount1 = price ; string amount2 = total ; string taxsign = % ; system.out.printf( \nyour bill: ); system.out.printf( \n\nitem ); system.out.printf( %28s %11s %11s quantity price total ); //complete item one format system.out.printf( \n%-30s item); system.out.printf( %-10d (int)quantity); system.out.printf( %-10.2f (float)price); system.out.printf( + %-10.2f (float)total); //complete item two format system.out.printf( \n%-30s item2); system.out.printf( %-10d (int)quantity2); system.out.printf( %-10.2f (float)price2); system.out.printf( + %-10.2f (float)total2); //complete item three format system.out.printf( \n%-30s item3); system.out.printf( %-10d (int)quantity3); system.out.printf( %-10.2f (float)price3); system.out.printf( + %-10.2f (float)total3); system.out.printf( \n\n\nsubtotal %47.2f grandtotal); system.out.printf( \n6.25 %s sales tax %39.2f taxsign salestax); system.out.printf( \ntotal %50.2f grandtotaltaxed); } </code></pre> the problem is that every time the prices are the same everything lines up but lets say i type in a price of 50.00 and a price of 2.50 for two different items then the items price and total decimal points don t all line up please help.,java | |
| iphone view not visible i have the following code in my loadview method and can t understand why i can t see both different colored blocks. i thought the second self.view = was overlapping the second view so i could only see the green view. however even if i set the views alpha to 0.5 i still don t see the blue block the green one just becomes more transparent. am i missing something really stupid here <pre><code>- (void)loadview { cgrect newframe; newframe.origin = cgpointmake(100 100); newframe.size = cgsizemake(100 40); uiview *myview = [[uiview alloc] initwithframe:newframe]; myview.backgroundcolor = [uicolor bluecolor]; //myview.alpha = 0.5; self.view = myview; cgrect newframe2; newframe2.origin = cgpointmake(100 200); newframe2.size = cgsizemake(100 40); uiview *myview2 = [[uiview alloc] initwithframe:newframe2]; myview2.backgroundcolor = [uicolor greencolor]; //myview2.alpha = 0.5; self.view = myview2; </code></pre> },iphone | |
| how can i divide two floats and get an integer i have two variables that are both floats and i want the division to return as an integer. i ve tried a few things such as math.round() and multiplying it by 1 then dividing by 1 i can t seem to get it to work. <pre><code> import java.util.scanner; public class calculator { public static void main (string[] args) { float firstnumber; float secondnumber; char operator; float answer; float answerremainder; scanner input = new scanner (system.in); system.out.print( enter your first number ); firstnumber = input.nextint(); system.out.print( enter the operator (s for subtraction a for addition m for multiplication d for division r for division with a remainder))\n ); operator = input.next().charat(0); while (operator != s && operator != a && operator != m && operator != d && operator != r ) { system.out.print( \nyou have entered an incorrect character. enter the operator (s for subtraction a for addition m for multiplication d for division r for division with a remainder)\n ); operator = input.next().charat(0); } system.out.print( enter your second number ); secondnumber = input.nextint(); if (operator == s ) { system.out.print(firstnumber + - +secondnumber+ = +(firstnumber - secondnumber)); } else if (operator == a ) { system.out.print(firstnumber + + +secondnumber+ = +(firstnumber + secondnumber)); } else if (operator == m ) { system.out.print(firstnumber+ * +secondnumber+ = +(firstnumber * secondnumber)); } else if (operator == d ) { system.out.print(firstnumber+ / +secondnumber+ = +(firstnumber / secondnumber)); } else if (operator == r ) { answerremainder = (firstnumber / secondnumber); system.out.print(firstnumber+ / +secondnumber+ = +(answerremainder)+ with a remainder of +(firstnumber % secondnumber)); } } } </code></pre> so i want the last line answerremainder to be a whole number,java | |
| returning an array of strings from a method - java i have a class <pre><code>package lab4; public class criticalclasses { private string course_name; private string[] critical_class = new string[3]; public criticalclasses (string course){ course_name = course; } public criticalclasses (string class0 string class1 string class2){ critical_class[0] = class0; critical_class[1] = class1; critical_class[2] = class2; } public string tostring(){ return course_name; } } </code></pre> this is my main: <pre><code>package lab4; import java.util.scanner; public class lab4 { public static void main(string[] args) { criticalclasses course; course = new criticalclasses( ingegneria ); system.out.println(course); criticalclasses classes; classes = new criticalclasses( number1 number2 number3 ); //system.out.println(java.util.arrays.tostring(classes)); //system.out.println(classes); these are comments because i dont know what to write } </code></pre> i cannot understand how to return all the inserted values in the main. i should use the tostring method but i can do that only for the element course_name. thank you in advance.,java | |
| iterating through arraylist to get 5 largest numbers yes this is homework but i need some help with it. i have been able to make it sort through the highest number but none of the numbers are correct after that. list of numbers: <a href= http://pastebin.com/ss1wfgv1 rel= nofollow >http://pastebin.com/ss1wfgv1</a> right now we are learning arrays so is this simply trying to shoot a fly with a cannonball <pre><code> package hw2; import java.io.bufferedreader; import java.io.filereader; import java.util.arraylist; public class hw2 { public static arraylist<integer> nums1 = new arraylist<integer>(); public static int size = 0; public static void main(string[] args) throws exception { arraylist<integer> sortednums = new arraylist<integer>(); readfile(); system.out.println( name: jay bhagat + \n + email: xxxxxx ); size = nums1.size(); for(int l = 0; l<=10;l++){ nums1.set(sortthis(nums1 l) 90009); system.out.println( \n\n ); } // for (int k = 0; k <= size - 1; k++) { // system.out.println( number + (k + 1) + sortednums.get(k)); // // } } public static void readfile() throws exception { bufferedreader reader = new bufferedreader(new filereader( l:\\numbers.txt )); while (reader.readline() != null) { nums1.add(integer.parseint((reader.readline()))); } reader.close(); } public static int sortthis(arraylist<integer> current int offset) { int j = 0; int tempnum = 0; int curnum = 0; int finalindex = 0; int previndex = 0; int curindex = 0; for (j = 0; j < size-offset; j++) { curindex = j; nums1.trimtosize(); curnum = current.get(j); //thread.sleep(1000); if(curnum!=90009){ if (curnum > tempnum) { tempnum = curnum; system.out.println(tempnum); previndex = j; finalindex = previndex; } if (curnum < tempnum) { finalindex = previndex; } } } return finalindex; } } </code></pre>,java | |
| move class between elements with pure javascript without using jquery can you help me here with this ordinary js code as i want to move the classname active from item to another item including removing all elements class and keep it with the this.item <pre><code>function moveclass(){ var item = document.getelementsbyclassname( item ); for(var i = 0 ; i < item.length ; i++){ var items = item[i]; items.onclick=function(){ items.classlist.remove( active ); this.classlist.add( active ); } } } window.addeventlistener( load moveclass) </code></pre>,javascript | |
| how to make a diagram from arrays in java my program needs to draw a diagram like this: <pre><code> --- --- xxx --- xxx +++ --- xxx +++ --- ooo xxx +++ --- ooo xxx +++ --- ooo xxx +++ --- *** ooo xxx +++ --- *** ooo xxx +++ --- *** ooo xxx </code></pre> from this data: <pre><code>private static final int[] data = {15 21 7 12 18}; private static final int max_height = 10; private static final int column_width = 3; private static final int space_between_columns = 2; private static final char[] filler = {’+’ ’-’ ’*’ ’o’ ’x’}; </code></pre> i really need some guidlines on how to make it. thanks,java | |
| create math function with a dummy variable to be evaluated later i am trying to create a function in python which will add a bunch of math terms together which include some arbitrary variable name to be evaluated after the entire thing has been constructed. so for example <pre><code>def transform(terms xterm): function=.5 step=terms odd=1 while step>0: function+=(2/odd*np.pi)*np.sin(odd*np.pi*xterm) odd+=2 step-=1 return function test=transform(10 somexvariable) print test </code></pre> this is a fourier series for a particular function i had to do in my mechanics class. basically i want to for amount of terms (say 5) create a variable that looks like this: <pre><code>function = .5 + (2/odd*np.pi)*np.sin(odd*np.pi*xvariable) +....... </code></pre> out to however many terms i want where the variable odd is the only number that changes. the key and the difficulty to this problem is inserting some dummy variable i called xvariable so that later i can create a array like this: <pre><code>x2 = np.arange(0 10 .05) y = transform(2 x2) </code></pre> the result would be an array of those x values evaluated in the function i created with transform . i am sure i am going about this the wrong way...but i can t seem to figure out the necessary order of steps to make this work. help please. thanks!,python | |
| javascript variable null error hi there i found an error in my javascript code using firebug <strong>b is null</strong> and my images are not changing.what i am trying to implement is 3 images swapping eventually on a webpage but standalone at the moment.currently nothing is happening with it and i have tested in 3 well known browsers. any help would be great <pre><code><script type= text/javascript > var imagearr1 = new array( banner1.jpg banner2.jpg banner3.jpg ); var imageholder1 = document.getelementbyid( photo ); function rotateimages(whichholder start) { var a = eval( imagearr +whichholder); var b = eval( imageholder +whichholder); if(start>=b.length) start=0; b.src = a[start]; document.getelementbyid( slidenumber ).textcontent = slide +(start+1)+ of +imagearr1.length; window.settimeout( rotateimages( +whichholder+ +(start+1)+ ) 3500); } rotateimages(1 0); </script> </code></pre>,javascript | |
| what is the value of x i have a piece of code that i wrote in tag. <pre><code><script> var y = 1 x = y = typeof x; alert(x); </script> </code></pre> this will alert x as undefined . please explain me how this is evaluated by javascript compiler. thanks in advance.,javascript | |
| how to detect change on webpage without reload i found ho to detect by using perl. <a href= https://stackoverflow.com/questions/10201009/how-to-detect-a-changed-webpage] >how to detect a changed webpage </a> but unfortunatelly i don t know perl. is there a way in python can you give a detailed example if you do not complicate,python | |
| code breaks when highlighting at selectionstart equal to zero when ever i highlight at what would be selectionstart = 0; this code does not execute. however if i highlight one character in front of the first character in the textarea the code works. any ideas about getting this code to work if i highlight at the first character in the textarea <pre><code> function fontbbcode(font){ var textbox = document.getelementbyid( content ); var textselected; var fonttagopen = [font= ; var fonttagclose = [/font] ; var stringbuilder; var sel; var startselpos; var endselpos; var len; if (document.selection){//ie textbox.focus(); sel = document.selection.createrange(); textselected = sel.text; } else if (textbox.selectionstart){//mozilla startselpos = textbox.selectionstart; endselpos = textbox.selectionend; textselected = textbox.value.substring(startselpos endselpos); } alert(textselected.length); alert(textbox.value.length); if (textselected){ stringbuilder = fonttagopen.concat(font); stringbuilder = stringbuilder.concat( ] ); stringbuilder = stringbuilder.concat(textselected); stringbuilder = stringbuilder.concat(fonttagclose); if(document.selection)//ie sel.text = stringbuilder; else if(textbox.selectionstart){//mozilla len = textbox.value.length; textbox.value = textbox.value.substring(0 startselpos) + stringbuilder + textbox.value.substring(endselpos len); } } else{ stringbuilder = fonttagopen.concat(font); stringbuilder = stringbuilder.concat( ] ); stringbuilder = stringbuilder.concat(fonttagclose); textbox.value += stringbuilder; } } </code></pre>,javascript | |
| emoji like application i want to create custom keyboard application like emoji app. i know how to enable emoji in the iphone but my question is from were the icons are coming and how i can add my own icons to emoji keyboard or i have to make my own keyboard separate. this all should work with all app like email notes etc... please advice some solution.,iphone | |
| access object in javascript array by id or unique prop with o(1) let s say we have an array of objects like this: <pre><code>const myarray = [ { id: a label: a } { id: b label: b } ... ]; </code></pre> is there a way to access any object in this array by id with constant o(1) time complexity,javascript | |
| iterate over nested (multi-level) hashmap i am trying to write a java program to iterate over a multi-level hashmap. for example i have a <code>hashmap <string object></code> where object can be another <code>hashmap<string object></code>. the level of this hashmap can be n (>5). can someone give me a hint on how to write it in java does java provide some utility thanks,java | |
| passing array through average method resulting in low percent for some reason the average is being populated wrong when i pass the array to the method i get a really low percent. it almost seems like since the array shotsmade is only recording integers for made shots and not misses it is not calculating off the right base. <pre><code>import java.util.*; public class test { public static void main(string[] args) { int mygamecounter = 1; int shotcount = 0; int shotcount1 = 0; int [] shotsmade = new int [5]; int sum = 0; system.out.print( enter player s free throw percentage: ); scanner input = new scanner(system.in); int percent = input.nextint(); //game #1 system.out.println( game + mygamecounter + : ); random r = new random(); mygamecounter++; shotcount = 0; for (int i = 0; i < 10; ++i){ boolean in = tryfreethrow(percent); if (in) { shotcount++; system.out.print( in + ); } else { system.out.print( out + ); } } system.out.println( ); system.out.println( free throws made: + shotcount + out of 10 ); shotsmade[0]= shotcount; //game #2 system.out.println( ); system.out.println( game + mygamecounter + : ); mygamecounter++; shotcount1 = 0; for (int i = 0; i < 10; ++i){ boolean in = tryfreethrow(percent); if (in) { shotcount1++; system.out.print( in + ); } else { system.out.print( out + ); } } system.out.println( ); system.out.println( free throws made: + shotcount1 + out of 10 ); shotsmade[1]= shotcount1; system.out.println( ); system.out.println( summary: ); system.out.println( best game: + max(shotsmade)); system.out.println( total free throws made: + sum(shotsmade) + + out of 20 ); system.out.println( average free throw percentage: + average(shotsmade) + % ); </code></pre> }//main <pre><code>public static boolean tryfreethrow(int percent) { random r = new random(); int number = r.nextint(100); if (number > percent){ return false; } return true; } public static float average(int nums[]) { int total = 0; for (int i=0; i<nums.length; i++) { total = total + nums[i]; } float f = (total / nums.length); return (float)total /(float)nums.length; } public static int sum(int nums[]) { int sum = 0; for (int i=0; i<nums.length; ++i) { sum += nums[i]; } return (int)sum; } public static int max(int nums[]) { int max=nums[0]; for (int i=1; i<nums.length; i++) { if (nums[i] > max) max = nums[i]; } return max; } </code></pre> }//class,java | |
| css & javascript popup not working why isn t this javascript function triggering the popup i ve tried .classlist as well as style.visibility and neither triggers the #filter div to display. <pre><code><div class= lpicon onclick= designfunction > <img class= lpactionicon src= file:///users/homefolder/desktop/hyperspace%20website/images/launchpad/lp%20action%20icon-%20design.png /> </div> <div id= filter > </div> </code></pre> css: <pre><code>.lpicon { height: 100px; width: 50px; margin-left: 14%; margin-top: 8%; float: left; } #filter { visibility: hidden; height: 100%; width: 100%; background-color: grey; position: absolute; opacity: .7; top: 0px; } </code></pre> javascript: <pre><code>function designfunction() { document.getelementbyid( filter ).classlist.remove( block ); } </code></pre>,javascript | |
| how to tell user how many attempts left in python i am trying to make a random number game in python where the computer has to generate a number between 1 and 20 and you have to guess it. i have limited the amount of guesses to 6. how do i print how many guesses the user has left when they get a guess wrong here is my code: <pre><code>import random attempts = 0 name = input( what is your name ) random = random.randint(1 20) print(name + i m thinking of a number between 1 and 20 what is it ) while attempts < 6: number = int(input( type your guess: )) attempts = attempts + 1 int(print(attempts attemps left )) #this is the code to tell the user how many attempts left if number < random: print( too low. try something higher ) if number > random: print( too high. try something lower ) if number == random: break if number == random: if attempts <= 3: print( well done name + ! it took you only attempts attempts ) if attempts >= 4: print( well done name + ! it took you attempts attempts. athough next time try to get three attempts or lower ) if number != random: print( sorry. all your attempts have been used up. the number i was thinking of was random) </code></pre> thanks any help is greatly appreciated!,python | |
| javascript: how can i use the filter() to filter out specific objects with a certain value i have an object with accounts example: <pre><code> { amount : 822370.71 state : me } { amount : 968817.53 state : fl } { amount : 587603.26 state : oh } { amount : 657617.83 state : oh } { amount : 657617.83 state : fl } </code></pre> let s say i want to filter out only the objects with the states of fl and oh how could i use the filter() to do that thanks.,javascript | |
| how to use uiview transitionwithview i ve written a small multiplayer game for the iphone. once one of the players win i want to display him you win image which is in an imageview. i want to make an animation that will show this uiimageview on top of the current game view with sliding from bottom animation. this uiimageview will fill the whole screen while using transparency to make it modal so in the background i will still see the game state. how cam this be done using uiview transitionwithview,iphone | |
| dynamically generated json order is missing with the values present inside the map datastructure i am creating a json dynamically . <strong>the json its getting created is</strong> <pre><code>{ item : { t1 : [ { name : ice creams t2 : [ { name : ice creams***stick t3 : [ { t4 : [ { name : ice creams***stick***koolcool***strawbeerry leaf : [ { crust_name : crust } ] } ] name : ice creams***stick***koolcool } ] } ] } ] } } </code></pre> the problem is that the name under t3 is being appended at some other place rather than after it which should actually be <pre><code>{ item : { t1 : [ { name : ice creams t2 : [ { name : ice creams***stick t3 : [ { name : ice creams***stick***koolcool t4 : [ { name : ice creams***stick***koolcool***strawbeerry leaf : [ { crust_name : crust } ] } ] } ] } ] } ] } } </code></pre> functionally there should be no difference between name being first or second in the property list but this json would be passed to the front end and the search functionality is breaking down if it not follows the structure could anybody please let me know how to make the name appear after t3 please see this fiddle <a href= http://jsfiddle.net/5wvqkb82/ rel= nofollow >http://jsfiddle.net/5wvqkb82/</a> <strong>this is my java program.</strong> <pre><code>package com.services; import java.util.linkedhashmap; import java.util.linkedlist; import java.util.list; import java.util.map; import org.json.jsonarray; import org.json.jsonexception; import org.json.jsonobject; public class test { private static jsonobject processstring(string data int level string key) throws jsonexception { jsonobject json = new jsonobject(); jsonarray leafjsonarray = new jsonarray(); int index = data.indexof( ); string name = data; string remainder = ; if (index < 0) { index = name.indexof( ( ); if (index > 0) { name = data.substring(0 index); } } else { name = data.substring(0 index); remainder = data.substring(name.length() + 1); } string fullpath = key+ *** +name; json.put( name fullpath); jsonarray a = new jsonarray(); if (remainder.length() > 0) { a.put(processstring(remainder level + 1 fullpath)); json.put( t + level a); } else { jsonobject leafjsonobj = new jsonobject(); leafjsonobj.put( crust_name crust ); leafjsonarray.put(leafjsonobj); json.put( leaf leafjsonarray); } return json; } private static jsonarray processlist(list<string> list int level string key) throws jsonexception { jsonarray json = new jsonarray(); for (string data : list) { json.put(processstring(data level key)); } return json; } private static jsonarray processmap(map<string list<string>> map int level) throws jsonexception { jsonarray array =new jsonarray(); for (string key : map.keyset()) { jsonobject json = new jsonobject(); json.put( name key); json.put( t + level processlist(map.get(key) level + 1 key)); array.put(json); } return array; } public static void main(string args[]) { map<string list<string>> consilatedmapmap = new linkedhashmap<string list<string>>(); list<string> values = new linkedlist<string>(); values.add( stick koolcool strawbeerry(25) ); // values.add( cone sss(25) ); /* list<string> values2 = new linkedlist<string>(); values2.add( bucket(25) ); */ //consilatedmapmap.put( popcorn values2); consilatedmapmap.put( ice creams values); try { int level = 2; jsonarray json = processmap(consilatedmapmap level); jsonobject jsont1 = new jsonobject(); jsont1.put( t1 json); jsonobject sai = new jsonobject(); sai.put( item jsont1); system.out.println(sai); } catch(jsonexception x) { x.printstacktrace(); system.exit(-1); } } } </code></pre>,java | |
| how to get the objects in an array based on particular string i am new to iphone.i have an array which contains the objects like below 04_num <pre><code> 04_num/04num.m3u 04_num/04num001.mp3 04_num/04num002.mp3 04_num/04num003.mp3 04_num/04num004.mp3 04_num/04num005.mp3 04_num/04num006.mp3 04_num/04num007.mp3 04_num/04num008.mp3 04_num/04num009.mp3 04_num/04num010.mp3 04_num/04num011.mp3 04_num/04num012.mp3 04_num/04num013.mp3 04_num/04num014.mp3 04_num/04num015.mp3 04_num/04num016.mp3 04_num/04num017.mp3 04_num/04num018.mp3 04_num/04num019.mp3 04_num/04num020.mp3 04_num/04num021.mp3 04_num/04num022.mp3 04_num/04num023.mp3 04_num/04num024.mp3 04_num/04num025.mp3 04_num/04num026.mp3 04_num/04num027.mp3 04_num/04num028.mp3 04_num/04num029.mp3 04_num/04num030.mp3 04_num/04num031.mp3 04_num/04num032.mp3 04_num/04num033.mp3 04_num/04num034.mp3 04_num/04num035.mp3 04_num/04num036.mp3 </code></pre> but here i want the objects only which contains .mp3 extension and then i have to place those objects into another array how it is possible if any body know this please help me...,iphone | |
| python how to display the results as expected format i am using python to manipulate the data and display as expected format currently i used empty array to append the manipulated data based on the datatype (u8 and u16) for u8 datatype:<code>value = 255</code> i am getting the result :<code>request = 2f f4 0d [ ff 0 0 0]</code> i am expecting result should be display by limiting addition bytes:<code>request = 2f f4 0d ff</code> for u16 datatype:<code>value = 260</code> i am getting the result:<code>request = 2f f4 0c [ 04 10 0 0]</code> i am expecting result should be display by limiting addition bytes:<code>request = 2f f4 0d 04 10</code> the code is as below: <pre><code>def eventonbtniocontrol(event): #called the force numeric item to open gui forcenumericitem() global value global cmd top.wait_window(subtop) request = 2f + + f4 + + 0d + + str(cmd) print request return </code></pre> my gui function: <pre><code>def forcenumericitem(): subtop.bind( <return> eventforcevalue) return </code></pre> clicking enter <pre><code>def eventforcevalue(event): global value value = submenutakestrint() print smiscale fscaledandoffset = ( ( value - smioffset ) / smiscale ) print fscaledandoffset if (fscaledandoffset >= 0.0): iscaledandoffset = math.trunc(fscaledandoffset + 0.5) else: iscaledandoffset = math.trunc(fscaledandoffset - 0.5) print iscaledandoffset global cmd cmd = [0 0 0 0] if(smitype == u8 or smitype == s8 ): cmd[0] = hex(iscaledandoffset & 0xff)[2:].zfill(2) cmdlimit = 1 print cmd elif (smitype == u16 or smitype == s16 ): cmd[0] = hex(( iscaledandoffset >> 8 ) & 0xff)[2:].zfill(2) cmd[1] = hex(iscaledandoffset & 0xff)[2:].zfill(2) cmdlimit = 2 print cmd elif (smitype == u24 ): cmd[0] = hex(( iscaledandoffset >> 16 ) & 0xff)[2:].zfill(2) cmd[2] = hex(( iscaledandoffset >> 8 ) & 0xff)[2:].zfill(2) cmd[3] = hex(iscaledandoffset & 0xff)[2:].zfill(2) print cmd elif (smitype == u32 ): cmd[0] = hex(( iscaledandoffset >> 24 ) & 0xff)[2:].zfill(2) cmd[1] = hex(( iscaledandoffset >> 16 ) & 0xff)[2:].zfill(2) cmd[2] = hex(( iscaledandoffset >> 8 ) & 0xff)[2:].zfill(2) cmd[3] = hex(iscaledandoffset & 0xff)[2:].zfill(2) print cmd else: printf( invalid numeric data by id type red ) subtop.destroy() top.deiconify() return </code></pre>,python | |
| get latest filename after iterating through filenames in a folder in python i have a list of folders. i iterate through each folder and read the filenames and extract the date from them which is in the format 21mar15. next i convert the the date to 2015-03 as string or object. i want to find out which is the latest file or rather get the latest date from each folder into a variable. i am badly stuck. please help. my code goes like this: <pre><code>folders = [] folders = ftp.nlst() folders = map(str folders) folders.sort() new_batches = [folder for folder in folders] #gets a list of folders in the ftp def folder_num(folder): ftp.cwd(folder) x=[] x=ftp.nlst() return x folder_list = len(folder) for batches in new_batches: y=folder_num(batches) if batches == abcd : for b in y: if (len(b)== 19): #print b[8:15] date = datetime.datetime.strptime(b[8:15] %d%b%y ).date().strftime( %y-%m ) print b + + date else: #print b[9:16] date = datetime.datetime.strptime(b[9:16] %d%b%y ).date().strftime( %y-%m ) print b + + date ftp.cwd( // ) elif batches == efgh : for b in y: if (len(b)== 19): #print b[8:15] date = datetime.datetime.strptime(b[8:15] %d%b%y ).date().strftime( %y-%m ) print b + + date else: #print b[19:26] date = datetime.datetime.strptime(b[19:26] %d%b%y ).date().strftime( %y-%m ) print b + + date ftp.cwd( // ) </code></pre> the output is as follows: <pre><code>abcd abcd23mar15 2015-03 abcd130apr15 2015-04 efgh efgc12apr15 2015-04 efgh115feb15 2015-02 </code></pre> <hr> i need to have <pre><code>var1_for_abcd = 2015-04 var2_for_efgh = 2015-04 </code></pre> or please help me to calculate the latest date for each folder. please help. thanks in advance,python | |
| here is a small piece of code for searching the word in a string without using inbuilt string function contains() public class helloworld{ <pre><code> public static void main(string []args){ string s = java is easy to learn ; </code></pre> string[] s2= s.split( \s+ ); string s1= easy ; <pre><code> for(int i=0; i<s2.length; i++){ if(s2[i].equals(s1)){ system.out.println( found ); break; } } } </code></pre> } can somebody help me further to find the word in above string without using equals() method as well means without using any inbuilt functions.,java | |
| how to get the unicode format of 你 i knew that the unicode of <code>你</code> (meaning <code>you</code>) is \x4f\x60. how can i get it from my python command console <pre><code>>>> print( 你 ) 你 >>> print(( 你 ).encode( gbk )) b \xc4\xe3 >>> print(( 你 ).encode( utf-8 )) b \xe4\xbd\xa0 </code></pre> i am in python3.3 .,python | |
| why is this javascript if condition not working as expected i am doing a comparison on dates in javascript. in this case date1 is empty <code> </code> and i can see the same in firebug. as per the code below the first alert shouldn t be called because <code>date1 == </code> but for some reason the alert <code>alert( this is called.... );</code> is invoked. what is wrong here <br /> <pre><code>if(date1 != null || date1 != ){ if( (date1 != null || date2 != ) && (date1 < date2)){ alert( this is called.... ); break; } else{ alert( that is called.... ); break; } } </code></pre> the above if condition is inside a for loop hence the break.,javascript | |
| triangle numbers in python i m trying to solve the problem: <blockquote> what is the value of the first triangle number to have over five hundred divisors </blockquote> <em>a triangle number is a number in the sequence of the sum of numbers i.e. 1+2+3+4+5...</em> i m pretty sure that this is working code but i don t know because my computer is taking too long to calculate it. does anybody have any idea of how to make the program a little faster.<br> thanks. <pre><code>import math def main(): l = [] one = 0 a = 1 b = 2 while one == 0: a = a + b b += 1 for x in range(1 int(a/2 + 1)): if a % x == 0: l.append(x) if len(l) > 499: print a if __name__ == __main__ : main() </code></pre>,python | |
| splitting a python list into a list of overlapping chunks hi this question is similar to this other <a href= https://stackoverflow.com/questions/2231663/slicing-a-list-into-a-list-of-sub-lists >slicing a list into a list of sub-lists</a> but in my case i want to include the last element of the each previous sub-list as the first element in the next sub-list. and have to take into account that the last element have always to have at least two elements eg: <pre><code>list_ = [ a b c d e f g h ] </code></pre> the result for size 3 sub-list: <pre><code>resultant_list = [[ a b c ] [ c d e ] [ e f g ] [ g h ]] </code></pre>,python | |
| my nested selection doesnt properly work. python i m making a program and i have defined the check password section but for some reason i try the check password option and the nested selection only works to a certain point. this is the section of the code that doesn t work properly: <pre><code>uppercase = set( abcdefghijklmnopqrstuvwxyz ) lowercase = set( abcdefghijklmnopqrstuvwxyz ) digits = set( 0123456789 ) allowedsymbols = set( !$%^&*()-_=+ ) if any ((c in uppercase)for c in userpassword): print ( you have used at least one uppercase letter. 5 points have been awarded. ) totalscore = totalscore + 5 if any ((c in lowercase)for c in userpassword): print ( you have used at least one lowercase letter. 5 points have been awarded. ) totalscore = totalscore + 5 if any ((c in digits)for c in userpassword): print ( you hve used at least one digit. 5 points have been awarded. ) totalscore = totalscore + 5 if any ((c in allowedsymbols)for c in userpassword): print ( you have used at least one of the allowed symbols. 5 points have been awarded. ) totalscore = totalscore + 5 if any ((c in uppercase)for c in userpassword) and any ((c in lowercase)for c in userpassword) and ((c in digits)for c in userpassword) and ((c in allowedsymbols)for c in userpassword): print ( you have used at least one of all the allowed characters. 10 point have been awarded ) totalscore = totalscore + 10 else: print ( you haven t used any of the allowed characters so no points have been awarded. ) print ( the score for your password so far is totalscore) </code></pre> can someone please show me where i have gone wrong thank you.,python | |
| im trying to make a python template with python and html is there anything wrong with this code i can t seem to find any problems i m still new to python. i m using html form action to execute the code but it appeared 500 internal server error... <pre><code>#!/usr/bin/python import mysqldb import time import cgi import cgitb cgitb.enable() localtime = time.asctime( time.localtime(time.time()) ) # open database connection db = mysqldb.connect( localhost root root tas ) # prepare a cursor object using cursor() method cursor = db.cursor() sql = select * from test_tbl where id in (select max(id) from test_tbl) print content-type: text/plain;charset=utf-8\n try: # execute the sql command cursor.execute(sql) # fetch all the rows in a list of lists. results = cursor.fetchall() for row in results: id = row[0] a1 = row[1] a2 = row[2] print wrote at: localtime print fullname: %s % (a1) print nric: %s % (a2) print sign by the willer. ]\n print our presence that involved on that day are ]\n print either by the willer request ]\n print with the willer presence ]\n print and have appointed us as ]\n print the witnesses ]\n except: print error: unable to fecth data # disconnectc from server db.close() </code></pre>,python | |
| json framework in iphone sdk how can we implement json framework in a iphone application development,iphone | |
| create file with javascript is it possible to create a file on localhost with javascript,javascript | |
| indexof method using recursion i need to write a recursive method called indexof that accepts two strings as parameters and that returns the starting index of the first occurrence of the second string inside the first string (or -1 if not found). i have to solve this problem using recursion. these are some example results: <pre><code>indexof( barack obama bar ) 0 indexof( barack obama ck ) 4 indexof( barack obama a ) 1 indexof( barack obama mccain ) -1 indexof( barack obama bar ) -1 </code></pre> this is my solution but it gives me 6 for indexof( barack obama mccain )instead of -1. <pre><code>public static int indexof(string s1 string s2) { if(s1.equals(s2)) return 0; else return indexofhelper(s1 s2 0); } private static int indexofhelper(string s1 string s2 int ctr) { if(s2.length() > s1.length()) return -1; if(s2.length() == 0 || s1.length() == 0) //base case return ctr; else //recursive case if(s1.charat(0) == s2.charat(0)){ //if there is a matching character if(s1.substring(0 s2.length()).equals(s2)) return ctr; //if there is a matching character and the rest of the strings match as well else return -1; //if there is a matching character but the rest of the strings don t match } else return 1 + indexofhelper(s1.substring(1) s2 ctr); </code></pre> },java | |
| ota problem iphone mime type ota(over the air) for iphone.... i have created simple application in iphone 3.0. i want to upload my exe(file) in local webservice. now i want to download this from that site and install in iphone .... how can i did this is it possible can anyone help me thanks in advance..............,iphone | |
| how do i write to a file without erasing the previous line everytime i re-ask the user to enter their grades i have it write a string to the file gradereport but everytime the while loop repeats the previous result is erased. how do i get several lines outputted in the file <pre><code>//open file and call writetofile method printwriter outputfile= new printwriter( gradereport.txt ); outputfile.println(s.writetofile()); outputfile.close(); </code></pre> and the method: <pre><code>public string writetofile() { decimalformat f = new decimalformat( 0.00 ); string str= name + -- + id + -- + f.format(getpercentage())+ -- + getgrade(); return str; } </code></pre>,java | |
| empty trailing comments do they do/mean anything i m looking at some of the code in the android butterknife library and found this snippet <a href= https://github.com/jakewharton/butterknife/blob/master/butterknife/src/main/java/butterknife/internal/butterknifeprocessor.java#l62 rel= nofollow >here</a>: <pre><code> private static final list<class< extends annotation>> listeners = arrays.aslist(// oncheckedchanged.class // onclick.class // oneditoraction.class // onfocuschange.class // onitemclick.class // onitemlongclick.class // onitemselected.class // onlongclick.class // onpagechange.class // ontextchanged.class // ontouch.class // ); </code></pre> i found this a bit peculiar to have what looks like just empty comments after each line but no comment text. it reminded me a little of line continuation in c macros but i have never come across this before in java. does this actually accomplish anything / is there some convention here where this is used,java | |
| javascript global variable is empty i have a function and created a global variable. the alert inside the function is alerting the result as expected but the variable is showing nothing. how can i fix this here s the code: <pre><code>var connectionresult = ; function checkconnection() { var networkstate = navigator.connection.type; var states = {}; states[connection.unknown] = unknown connection ; states[connection.ethernet] = ethernet connection ; states[connection.wifi] = wifi connection ; states[connection.cell_2g] = cell 2g connection ; states[connection.cell_3g] = cell 3g connection ; states[connection.cell_4g] = cell 4g connection ; states[connection.cell] = cell generic connection ; states[connection.none] = no network connection ; alert( connection type: + states[networkstate]); var connectionresult = states[networkstate]; }; checkconnection(); alert(connectionresult); // returns nothing </code></pre>,javascript | |
| why hash the hashcode in java hashmap when i see java hashmap source code i see the code like this. <pre><code>public v put(k key v value) { if (key == null) return putfornullkey(value); int hash = hash(key.hashcode()); int i = indexfor(hash table.length); for (entry<k v> e = table[i]; e != null; e = e.next) { object k; if (e.hash == hash && ((k = e.key) == key || key.equals(k))) { v oldvalue = e.value; e.value = value; e.recordaccess(this); return oldvalue; } } modcount++; addentry(hash key value i); return null; } </code></pre> so i don t know why we should hash the hashcode is there some problem with hashcode thinks.,java | |
| script inserted with innerhtml not executing i m trying to ad a script and execute it on a certain place of the page but although the code displays on the page when i inspect the dom it doesn t get executed. i m calling this from the head: <pre><code>function include (selector) { document.addeventlistener( domcontentloaded function(){ var selection = document.queryselector(selector); var div = document.createelement( div ); var text = <script src= myscript.js ></scr + ipt> + <script> + (function(){ + console.log( oh yes ); + myscript() + })(); + </scr + ipt> ; div.innerhtml = text; if (selection.nextsibling) { selection.parentnode.insertbefore(div selection.nextsibling); } else { selection.parentnode.appendchild(div); } }); } </code></pre> i never get oh yes in my console. does anyone know why this happens i ve checked this 2 answers: <a href= https://stackoverflow.com/questions/1197575/can-scripts-be-inserted-with-innerhtml >can scripts be inserted with innerhtml </a> and <a href= https://stackoverflow.com/questions/2592092/executing-script-elements-inserted-with-innerhtml >executing <script> elements inserted with .innerhtml</a> the first one doesn t work for strings containing tags and the second one just offers a script and no explanation. i d like to understand if it is possible in this case and how to make it work or where to put that function.,javascript | |
| distribut ios app in app store i have developped an ios application for my client with my personal individual program. now when the app is finish my client would like to distribute the application to the app store. how can i distribut it thanks for your answers,iphone | |
| calendar sunday to sunday i m trying to get flights for 8 days starting from sunday to the next sunday. the way i have implemented it now is by displaying the 7 days starting the selected date from my form. <pre><code>// set up calendar for sunday calendar sunday = calendar.getinstance(); sunday.settime(form.getdate()); sunday.add(calendar.day_of_week -1 * (sunday.get(calendar.day_of_week) - 1)); //set up calendar for next saturday calendar saturday = calendar.getinstance(); saturday.settime(sunday.gettime()); saturday.add(calendar.day_of_week 7); </code></pre> since the max of <code>day_of_week</code> is 7 what do i need to use instead i tried changing this line: <pre><code>saturday.add(calendar.day_of_week 7); </code></pre> to the following one: <pre><code>saturday.add(calendar.date 8); </code></pre> i already tried couple changes but no luck. any advice,java | |
| javascript image change when keydown and keyup i have some problem regarding changing an image src when i press a key but i can t figure it out how to do it . i managed to change the image i have with other using <code>onmousedown</code> and <code>onmouseup</code> and changes well but i can t figure it out for the keys. my project consists of controlling and rc car using raspberry pi and my website. on the website i have 4 buttons for directions that changes it s color when clicked on them and also there position to simulate that it works. but like i said in the beginning i want to simulate the exact same thing i do with <code>onmousedown</code> and <code>onmouseup</code> using <code>onkeydown</code> and <code>onkeyup</code> for characters <code>w</code> <code>a</code> <code>s</code> <code>d</code> because i couldn t find the ascii for the arrow keys. any tips are welcomed.,javascript | |
| this program throws an exception error when the user inputs a letter or word instead of the expected int (java) this program throws an exception error when the user inputs a letter by accident(typo) when they should enter a number. i need to make it so the user(when asked to input a die number >=1) is able to accidentally enter something other than a number and have the program act like they never entered anything and open up the keyboard again.(while also displaying a message like you entered something wrong please try again. ) heres the code: <pre><code>import java.util.scanner; public class enhancedgameofpig { public static void main(string[] args) { //scanner for taking input from keyboard scanner kb = new scanner(system.in); int nplayer = 0; do { system.out.print( enter the number of players (between 2 to 10): ); nplayer = kb.nextint(); //validity checking for 2-10 if (nplayer<2 || nplayer>10) { system.out.println( ops! the no of supported players are between 2 to 10 ); system.out.println( please enter again: ); } } while(nplayer<2 || nplayer>10); //creating array of nplayer as supplied by the user player [] players = new player[nplayer]; for(int i=0; i<nplayer;i++){ system.out.print( enter player name: ); string name = new scanner(system.in).nextline(); players[i] = new player(name); } /*starting the game*/ int round = 1; system.out.print( enter predetermined win points: ); int game_over_point = new scanner(system.in).nextint(); mark: while(true){ //start round for each player for(int i=0;i<players.length;i++){ system.out.println( player name: + players[i].getname() + you are playing round: + round); system.out.print( enter no of dies (>=1): ); int ndie = new scanner(system.in).nextint(); //validity checking here for die so that it is not <1 if (!(ndie>=1)){ system.out.println( oops! you need to enter a die that is greater than or equal to 1... ); } //datastructure for holding dies for this ith player die [] dieforplayer = new die[ndie]; //create the die objects for(int k = 0;k<ndie;k++){ dieforplayer[k] = new die(); } //rolling the dies now int totalvalue = 0; boolean isthereone = false; system.out.println( rolling + ndie + for + players[i].getname()); for(int k = 0;k<dieforplayer.length;k++){ int value = dieforplayer[k].roll(); system.out.println( die no: + (k+1) + value: + value); if(value==1) //atleast one 1 is there isthereone = true; totalvalue += value; } //roll is over.. now checking if (isthereone && totalvalue==ndie){ //all of them 1 //reset the banked point for this player players[i].resetbankedpoint(); system.out.println(players[i].getname() + oops! all the dies showed 1 s\n + you get nothing for this round and \n + your banked point has been reset to 0 ); } else if (!isthereone){ //no one(s) rolled //add the points to the banked pont of the user players[i].addbankedpoints(totalvalue); system.out.println(players[i].getname() + great! u get total of : + totalvalue + for this round ); system.out.println( your total banked point is: + players[i].getbankedpoint()); } else{ //there is atleast one 1 get no points for this round players[i].addbankedpoints(0); system.out.println(players[i].getname() + sorry! one of the die turned with one! \n + you get nothing for this round ); system.out.println( your total banked point is: + players[i].getbankedpoint() + \n ); } if (players[i].getbankedpoint()>=game_over_point){ //the game over point has been reached so breaking out of the outer while break mark; } } round++; }//end of the undeterministic while system.out.println( ================the game is over===================== ); system.out.println( total round played: + round); system.out.println( ===================================================== ); for(int i=0;i<players.length;i++){ system.out.print( player name: + players[i].getname() + score: + players[i].getbankedpoint()); if(players[i].getbankedpoint()>=game_over_point){ system.out.println( winner ); } else system.out.println(); } system.out.println( ====================================================== ); kb.close(); } } </code></pre>,java | |
| valueerror: too many values to unpack in fmin_l_bfgs_b i have the following code that is running to run xfoil to get me optimum values of weights in an aerofoil. <pre><code>def four_dim_opt(x0 weight_limits cl file_path xfoil_path): opt_out = fmin_l_bfgs_b(run_xfoil_wcl x0 args = (cl file_path xfoil_path) bounds = weight_limits epsilon = 0.01 approx_grad = true) return opt_out </code></pre> where run_xfoil_wcl is a functionreturning coefficient of drag values (float). the error i keep getting is: <pre><code>traceback (most recent call last): file <pyshell#13> line 1 in <module> four_dim_opt(x0 weight_limits 1.2 file_path xfoil_path) file h:/appliedlab4 - copy(2).py line 157 in four_dim_opt opt_out = fmin_l_bfgs_b(run_xfoil_wcl x0 args = (cl file_path xfoil_path) bounds = weight_limits epsilon = 0.01 approx_grad = true) file c:\python27\lib\site-packages\scipy\optimize\lbfgsb.py line 166 in fmin_l_bfgs_b l u = bounds[i] valueerror: too many values to unpack </code></pre>,python | |
| custom header description in uitableview is apple using a documented method of the sdk in settings.app or is it some kind of custom cell / custom header description of a grouped tableview storage is <code>titleforheaderinsection:</code>. what is 8.6 gb available - 5.1 gb used <img src= https://i.stack.imgur.com/1zszp.png alt= enter image description here >,iphone | |
| summing columns of a txt file in java i have a text file that reads: 1 2 3 4 5 6 7 8 9 1 8 3 9 7 1 9 3 4 8 2 8 7 1 6 5 where each number is separated by a tab. my question is is there a simple way to sum the columns of numbers using java i want it to sum 1+6+8+9+8 2+7+3+3+7 etc. i am reading the file using: <pre><code> public static boolean testmagic(string pathname) throws ioexception { // open the file bufferedreader reader = new bufferedreader(new filereader(pathname)); // for each line in the file ... string line; while ((line = reader.readline()) != null) { // ... sum each column of numbers } reader.close(); return ismagic; } public static void main(string[] args) throws ioexception { string[] filenames = { myfile.txt }; </code></pre> },java | |
| add new field in existing built in application of iphone hope you all are fine and are in your best of moods. i herewith one doubt to ask you kindly help me by giving its solution. i need to add one custom field in existing built in contact application of iphone. i mean i need to allow user to set different icon or logo for different contact. so i need to add one field namely icon or logo in existing application. but i don t know how to do this weather it is possible or not or is there any alternate solution for that or not kindly post your answers. thanks in advance.,iphone | |
| "jquery single .click limit i ve been building a mobile application which scans loyalty cards and checks whether the card is registered against a database. once the barcode has been scanned it opens up an internal browser which automatically inserts the barcode number into a text field through the url that is sent to the browser (using search=123456 at the end of the url). then js checks whether the url has #click_approved in (which is present after scanning). this automatically clicks the submit button and runs the database check thus either bringing back user information if registered or tells the user that the card is not registered. i have got everything working except i m having a small problem where the submit button is constantly being clicked as if the js code is looping. i m not sure if the problem is in my js or elsewhere. any help is appreciated. <div class= snippet data-lang= js data-hide= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code><script> | |
| if(document.url.indexof( #click_approved ) >=0){ | |
| document.getelementbyid( approved_btn ).click(); | |
| } | |
| </script></code></pre> | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><script src= http://static.jsbin.com/js/render/edit.js 3.35.4 ></script></code></pre> | |
| </div> | |
| </div> | |
| this is the js that i have used. i hope i have described what i m trying to achieve and what my problem is clearly. i m new to coding so please be patient with me if i m making a stupid mistake. thank you.",javascript | |
| javascript is not working in my editor i m kind of new in javascript . here is my strange problem.<br> when i write some code in my editor <code>phpstorm</code> and want to see my effect nothating happend but when i put my code in firebug it works !!! here s my little code : <pre><code>var views = document.getelementbyid( views-row ); console.log( this is element type of : views.nodetype); console.log( this is element type of : views.innerhtml); console.log( this is element type of : views.childnodes); var mylinks = document.getelementsbytagname( a ); console.log( links mylinks.length); var views = document.getelementbyid( views-row ); views.setattribute( align right ); </code></pre> am i missing something,javascript | |
| javascript countdown with pause & resume i have javascript countdown <pre><code>var timerscount = 0; var timercounter = setinterval(counttimers 30000); counttimers(); function counttimers() { timerscount++; var count = 26; var counter = setinterval(timer 1000); function timer() { count = count-1; if(count < 0) { clearinterval(counter); return; } document.getelementbyid( timer ).innerhtml=count; } document.getelementbyid( counttimers ).innerhtml=timerscount; } </code></pre> html <pre><code><button id= pause >pause</button> <button id= resue >resume</button> </code></pre> that function is running ok. but now i want to add pause and resume the countdown. is it possible to set it to my function. please help.,javascript | |
| how do you show a js alert only once i want a message to pop up to alert users of lt ie8 that they should really upgrade their browser or they won t have the best possible web experience. however i only want this to pop up on their first visit to my site not on every page refresh. is there a way to do this thanks in advance.,javascript | |
| mutator returning a value mutator returning a value add a new method emptymachine() to the ticketmachine class that is designed to simulate emptying the machine of money it should both return the value in total and reset the value of total to zero. paste the whole method into the space below <pre><code>public int emptymachine() { system.out.println( # + total ); total = 0; } </code></pre> i get this error: <pre><code>ticketmachine.java:44: missing return statement } ^ 1 error the output should have been: emptymachine() returns correct value emptymachine() empties machine this is what was actually produced: exception in thread main java.lang.noclassdeffounderror: ticketmachine </code></pre>,java | |
| how to compile apps for multiple versions of ios sdks i have an app and i want to compile it for ios 4.1 iphone system but i only have sdk 4.3 on my mac. can i compile that for 4.1 how can i configure it or so i need to install 4.1 sdk onto my mac how can i install it,iphone | |
| method is not a function i ve tried code from here <a href= http://www.webreference.com/programming/javascript/gr/column3/ rel= nofollow noreferrer >http://www.webreference.com/programming/javascript/gr/column3/</a> but firebug says - this.preload is not a function . why i thought that function is some sort of object.,javascript | |
| javascript array.prototype.find second argument thisarg not working i was reading a javascript book and found this code about how to use <code>arr.find(callback[ thisarg])</code> <pre><code>class person { constructor(name) { this.name = name; this.id = person.nextid++; } } person.nextid = 0; const jamie = new person( jamie ) juliet = new person( juliet ) peter = new person( peter ) jay = new person( jay ); const arr = [jamie juliet peter jay]; // option 2: using this arg: arr.find(p => p.id === this.id juliet); // returns juliet object </code></pre> i cannot get the desired result. everytime the <code>find()</code> returns <code>undefined</code>.,javascript | |
| using mapkit in iphone application i am using mapkit in my application i want to submit the application to appstore is there any specific procedure need to follow for submitting the mapkit enabled or used application. please help me thanks in advance.,iphone | |
| when to use setters and when to use constructors to set variable values i see we can encapsulate instance variables with setters however constructors seem to do the same thing. <pre><code>class object1 = new class(100 100) // setting using constructor object1.setvalue(100 100) // setting using setters </code></pre> when should i use setters and when should i use constructors to initialize instance variable values,java | |
| will scheduled task run if the user is not opening the application the situation: i have a program that records student s payments (made entirely with html css and javascript) i would like it to calculate the amount of students that stopped the lessons automatically around the end of the month (by automatically i mean without the user having to press any buttons to get that info). my question is: if for example i schedule the function to run on the 29 of every month and that day the user does not open the program does the function get executed anyway or not the program is an off line program made to be downloaded once and run always no need to connect again to the web if the user decides it. i would do something like: <pre><code>var thismoment = new date() //creates a date object currentday = thismoment.getdate(); //this would give me the day at that moment. if(currentday == 29) { }//code to be executed here </code></pre> i know i could just try it but i would have to wait for a day or rewrite the code to schedule something some minutes ahead but i would miss all the juicy information you are probably going to share here hahaha. any help appreciated! :),javascript | |
| break a loop form another method i m having two methods one method (named a) provides loop and sends loop value to another method(named b). if the condition in method b is satisfied the loop from a should stop. how can i implement it. <pre><code>void a() { for(int i=0;i<10;i++) b(i); } void b(int x) { if(x==4) //i want to stop the loop of a } </code></pre>,java | |
| multiple variable for if else statement i have written some code to check if the user has entered a number between 1 and 5 and now i would also like my code to allow the user to enter the letters a s d or m. is there a way to combine the code where i can have it identify whether the user has entered 1-5 or a s d m how do i edit the code below so the user can enter either an integer or a character do i have to write a snippet of code underneath the loop for it to identify that a user did not enter 1-5 but did enter a s d or m as in break out of the loop or is it a separate loop all together. i am so confused! <pre><code>import java.util.inputmismatchexception; import java.util.scanner; public class selection { scanner readinput = new scanner(system.in); int selectionone() { int inputint; do { //do loop will continue to run until user enters correct response system.out.print( please enter a number between 1 and 5 a for addition s for subtraction m for multiplication or d for division: ); try { inputint = readinput.nextint(); //user will enter a response if (inputint >= 1 && inputint <=5) { system.out.print( thank you ); break; //user entered a number between 1 and 5 } else { system.out.println( sorry you have not entered the correct number please try again. ); } continue; } catch (final inputmismatchexception e) { system.out.println( you have entered an invalid choice. try again. ); readinput.nextline(); // discard non-int input continue; // loop will continue until correct answer is found } } while (true); return inputint; } } </code></pre>,java | |
| variables in javascript i have two arrays sd[16][16] and gd[16][16] in javascript. i need to compare the values of the arrays. <pre><code>var score=0; document.write( <table> ); for(c1=0; c1<16; c1++) { document.write( <tr> ); for(c2=0; c2<16; c2++) document.write( <td onclick= changecolor(this); > + gd[c1][c2] + </td> ); document.write( </tr> ); } document.write( </table> ); function changecolor(tdd) { if(tdd.bgcolor== white ) { tdd.bgcolor= red ; if (gd[c1][c2] == sd[c1][c2]) score+=5; else score-=2; } else { tdd.bgcolor= white ; } } </code></pre> however when i try to display the score later the score is not displayed. <pre><code>function scc() { document.getelementbyid( scf ).innerhtml = score; } </script> <br><br><center><button type= button onclick= scc() > click to see current score</button> <p id= scf >0</p> </center> <br><br> <center><input type= submit value= get solution /></center> </code></pre> could someone please tell me what i am doing wrong,javascript | |
| string.replace() doesnt seem to work so i have a <code>function</code> <code>guess_check(guess)</code> that is invoked by <code>prompt()</code> <code>function</code> <code>prompt()</code> invokes <code>guess_check()</code> so that guess is a one work <code>string</code> containing an alphabet character. word is a variable = <code> placeholder </code> below is the code that i m having trouble with: <pre><code>if guess in word: word.replace(guess * ) print word </code></pre> if i make guess = a i would anticipate word = pl*ceholder but it doesn t change. why does the word variable not change and how can i get it to change as i want,python | |
| best way to make a remote database driven iphone application i have a school project that i think i can do with the concept of secure database driven application can anybody help me how to do that because i am confused with method will be best and secure. tutorial link will be good,iphone | |
| getting the wrong answer (monte carlo) for estimation of pi i am trying to estimate the value of pi using a monte carlo simulation. i need to use two unit circles that are a user input distance from the origin. this is what i have: <pre><code>import random import math import sys def main(): numdarts=int(sys.argv[1]) distance=float(sys.argv[2]) print(montepi(numdarts distance)) def montepi(numdarts distance): width=2*(1-distance) if distance>=1: return(0) incircle=0 for i in range(numdarts): x=(width*(random.random()))-width y=(random.random()) d=(x-distance)**2+(y-0)**2 d2=(x-(distance*-1))**2+(y-0)**2 if d<=1 and d2>=-1: incircle=incircle+1 pi=(incircle/numdarts)*(width*2) return pi main() </code></pre> this is what i should get- when distance = 0 about 3.14 when distance = .5 about 1.288 i am getting about 1.6 and .6 respectively why these are my instructions- write a program called mcintersection.py that uses the monte carlo method to estimate the area of this shape (and prints the result). your program should take two command-line parameters: distance and numdarts. the distance parameter specifies how far away the circles are from the origin on the x-axis. so if distance is 0 then both circles are centered on the origin and completely overlap. if distance is 0.5 then one circle is centered at (-0.5 0) and the other at (0.5 0). if distance is 1 or greater then the circles do not overlap at all! in that last case your program can simply output 0. the numdarts parameter should specify the number of random points to pick in the monte carlo process. in this case the rectangle should be 2 units tall (with the top at y = 1 and the bottom at y = -1). you could also safely make the rectangle 2 units wide but this will generally be much bigger than necessary. instead you should figure out exactly how wide the shape is based on the distance parameter. that way you can use as skinny a rectangle as possible.,python | |
| using python as the config language for a python program i d like to dynamically import various settings and configurations into my python program - what you d typically do with a .ini file or something similar. i started with json for the config file syntax then moved to yaml but really i d like to use python. it ll minimize the number of formats and allow me to use code in the config file which can be convenient. i hacked up an <code>__import__</code> based system to allow this using code that looks like: <pre><code>account_config = __import__(settings.config_dir + .account_name fromlist=[settings.config_dir]) </code></pre> it basically works but i m running into all kinds of esoteric problems - eg. if i try to import test it picks up some internal python library that s in the python path instead of my test. so i m wondering: is using python as the configuration language for a python program viable or am i asking for trouble are there examples i can steal from,python | |
| ็how to get vdo file from server i want to load a file from a server (e.g. <a href= http://www.myname.com/myfile.mov rel= nofollow noreferrer >http://www.myname.com/myfile.mov</a>) with my app and play it with <code>vdo mpmovieplayer</code>. however it uses <code>nsurlconnect</code> to connect to the url. how can i convert data of the type <code>nsdata</code> to <code>nsurl</code> for use in <code>vdo</code>,iphone | |
| getting all child input elements within a div i am trying to get all the values of the input fields. the issue is all of the <code><input type=radio/></code> are dynamic and can increase or decrease at any time. so i am starting with the main di and going from there. the problem i have now is i am not getting the input radio buttons values. so here are the steps i am intending to accomplish: <ol> <li>if any radio button is selected pass its value to the checkbox value </li> <li>if the radio button is selected and the checkbox is not selected do <em>not</em> pass to the checkbox value </li> </ol> i am looking for a solution in javascript only - <strong>do not use jquery</strong> here is my <a href= http://jsfiddle.net/4aeag76o/4/ rel= nofollow >jsfiddle code</a> <h3>html</h3> <pre><code><div style= display: block; id= mymaindiv class= fullfloat > <input type= hidden value= 1 id= startidxshmdecarwisevid name= startidxshmdecarwise > <div class= subtitle >ups<a class= fright onclick= localg( 10 false 0 false ups 1 $ ); href= javascript:void(0); >show prices</a></div> <div style= display:none; id= wheel_ups ><div class= loadingcheckout ></div></div> <div id= price_ups > </div> <div class= wrapleft wrapclear > <div class= wrapleft > <label class= > <input type= radio value= 11098 id= deliverymethodid_1 name= deliverymethodid class= section data-mask= data-rev= data-rel= false data-carrier= > <span> ups ground (order by 9:30 pm est) </span> <div class= wrapright > <div id= ups_11098 > </div> </div> </label> </div> <input type= text value= 1 id= ups > </div> <input type= hidden value= 2 id= startidxshmdecarwisevid name= startidxshmdecarwise > <div class= subtitle >standard<a class= fright onclick= localg( 20 false 0 false standard 2 $ ); href= javascript:void(0); >show prices</a></div> <div style= display:none; id= wheel_standard ><div class= loadingcheckout ></div></div> <div id= price_standard > </div> <div class= wrapleft wrapclear > <div class= wrapleft > <label class= > <input type= radio value= 11117 id= deliverymethodid_2 name= deliverymethodid class= section data-mask= data-rev= data-rel= false data-carrier= > <span> standard delivery - 2-3 day delivery at ground rate (order by 9:30 pm est) </span> <div class= wrapright > <div id= standard_11117 > </div> </div> </label> </div> <input type= text value= 1 id= standard > </div> <input type= hidden value= 3 id= startidxshmdecarwisevid name= startidxshmdecarwise > <div class= subtitle >fedex<a class= fright onclick= localg( 190 false 0 false fedex 3 $ ); href= javascript:void(0); >show prices</a></div> <div style= display:none; id= wheel_fedex ><div class= loadingcheckout ></div></div> <div id= price_fedex > </div> <div class= wrapleft wrapclear > <div class= wrapleft > <label class= > <input type= radio value= 11088 id= deliverymethodid_3 name= deliverymethodid class= section data-mask= data-rev= data-rel= false data-carrier= > <span> fedex ground (order by 8:00 pm est) </span> <div class= wrapright > <div id= fedex_11088 > </div> </div> </label> </div> <input type= text value= 1 id= fedex > </div> </div> <input type= checkbox name= shipmode id= shipmode value= onclick= getpref( mymaindiv ); >get value </code></pre> <h3>js code</h3> this executes when the checkbox is clicked: <pre><code>function getpref(val) { var wr = document.getelementbyid(val); childelements = wr.childnodes; //alert(childelements); for(var i = childelements.length-1; i>=0; i--){ var elem = childelements[i]; console.log(elem.id); if(elem.id && elem.id.indexof(val+ _ )==0){ elem.style.display = block ; } } //alert(val); } </code></pre>,javascript | |
| playing ipod library songs in audio queues not with mpmusicplayer controller i need to play songs from my music library in the background while playing video.. both audio and video will play at the same time... first i tried using mpmusicplayercontroller to play music but when i play video its stops playing song in background. after that i tried to play music using audiotoolbox. audio queues . now i can play audio and video at the same time but the song i am playing is static. i want to play song from ipod library and i need to provide the file path there so is there any way to get the library song path or any other idea please suggest..!,iphone | |
| javascript for hiding dates i ve used a javascript for hiding concert dates on a website for a client. it works fine. now i wanted to reuse it for another site and copied it. but now it won t work and i can t find the error... the script i m using is the following and is stored in js/termine.js : <pre><code>// <![cdata[ function aktualisieren() { if (!document.getelementsbytagname) return; var datum = new date(); var jahr = datum.getfullyear().tostring(); var monat = (datum.getmonth()+1).tostring(); if (monat.length == 1) monat = 0 + monat; var tag = datum.getdate().tostring(); if (tag.length == 1) tag = 0 + tag; var aktuell = parseint(jahr + monat + tag); var zeilen = document.getelementsbytagname( div ); for (var i = 0; i < zeilen.length; i++) { if (zeilen[i].title) { if (parseint(zeilen[i].title) < aktuell) zeilen[i].style.display = none ; } } } // ]]> </code></pre> in the html-head i m linking to that file via: <pre><code><script src= js/termine.js ></script> </code></pre> the dates are stored in termine.inc which i m including via php: <pre><code><div id= termine >< php include( includes/termine.inc ); ></div> </code></pre> can somebody give me a hint what i m missing thanks a lot!,javascript | |
| java inheritance classes with main method i have 2 objects defined in object-1 when i reference the child object it invokes the child method m1() whereas in object-2 when i reference the child method m1() it references the parent object.. in both the cases i assume parent object will hold a child type object at runtime... object-1 <pre><code> package pkgb; class parent{ static int i = 10; void m1(){ system.out.println( in parent = + i); } static void m1(string s){ system.out.println(s +i ); } } public class child extends parent{ static int i = 20; void m1(){ system.out.println( in child + child.i); } public static void main(string[] args){ parent p = new child(); p.m1(); } } </code></pre> object-2 <pre><code>package pkgb; class drink{ public static void m1(){ system.out.println( im drink method ); } } class coffee extends drink{ public static void m1(){ system.out.println( im coffee method ); } } public class test { public static void main(string[] args) { drink d = new coffee(); d.m1(); } } </code></pre> output dobject-1: <pre><code>in child20 </code></pre> output dobject-2: <pre><code>im drink method </code></pre>,java | |
| scribble maps set map options latitude longituude i m trying to set map options latitude and longitude to scribble maps. i m sure it can be done the same way as google maps but can t find more info in the documentation. this is my code : <pre><code>jquery(document).ready(function(){ var sm = new scribblemaps.scribblemap(document.getelementbyid( scribblemap )); }); </code></pre>,javascript | |
| smart way of converting dictionary to key=value connection string in python i have always changing connection strings with a variable number of keys such as port timeout etc etc. i store these in a dictionary because i like to use that and it feels natural but what i would like to do is convert something which looks like: <pre><code>{ host : localhost user : postgres password : xx database : test socket_timeout :9999 ssl :false port :5432} </code></pre> into something i can insert in place of this: <pre><code>conn = dbapi.connect(host=str(dbsettings[ host ]) user=(dbsettings[ user ]) password=str(dbsettings[ password ]) database=str(dbsettings[ database ]) ssl=dbsettings[ ssl ] port=dbsettings[ port ]) </code></pre> i can build a string a process with the following: <pre><code>m = [str(k) + = + str(v) for k v in dbsettings.items()] </code></pre> but this feels like i m not getting ahead. how can i retain the k as the keyword and v as the string and build a series of relations.,python | |
| javascript oop concept issue i have this simple code : <pre><code>// you can use either pixi.webglrenderer or pixi.canvasrenderer var renderer; var stage; var bunnytexture; var bunny; var game= {}; game.init = function() { }; game.init.prototype={ init:function(){ renderer= new pixi.webglrenderer(800 600); document.body.appendchild(renderer.view); stage= new pixi.stage; bunnytexture= pixi.texture.fromimage( img/ninja.png ); bunny= new pixi.sprite(bunnytexture); bunny.position.x = 400; bunny.position.y = 300; stage.addchild(bunny); } animate:function(){ bunny.rotation += 0.01; renderer.render(stage); requestanimationframe(this.animate); } } requestanimationframe(game.init.animate); </code></pre> i am calling the function like this : <pre><code> window.onload = function () { game.init(); }; </code></pre> a javascript error saying : <code>argument 1 of window.requestanimationframe is not an object.</code>,javascript | |
| how to count specified word occurrence in multiple elements i have some amount of elements with class of shoutbox_text how cani count specified word occurrence in all of them (inner html of them is just plain text there isn t anymore tags inside.),javascript | |
| making an on/off button with images i have two images sound_on.png and sound_off.png. both have the same height and dimensions. i would like to attach a javascript for the following action: <ol> <li>when the pressed images changes from sound_off.png to sound_on.png and the sound plays</li> <li>when the button is pressed again it changes back from sound_on.png to sound_off.png and the sound stops with the onclick command</li> </ol> at the moment i have these lines of code: <pre><code><a href= # onclick= playaudio(); ><img src= images/general/sound-on.png width= 40 height= 32 ></a> <a href= # onclick= stopaudio(); ><img src= images/general/sound-off.png width= 40 height= 32 ></a> </code></pre> what code do i need to make them like the above example i have this part: <pre><code><style type= text/css > .on {background-image:url url(images/general/sound-off.png)); background-repeat:no-repeat;} .off {background-image:url(images/general/sound-on.png); background-repeat:no-repeat;} </style> <script language= javascript > function togglestyle(el){if(el.classname == on ) {el.classname= off ;} else {el.classname= on ;}} </script> </code></pre> with this div for the button: <pre><code>div id= onoff class= playlist_btn ><img src= images/general/sound-off.png width= 50 height= 50 onclick= togglestyle(onoff) ></div> </code></pre> this makes the toggle but i have no idea so far how to connect the onclick command to get the audio playing and to stop it again. could it be something like this <pre><code>function togglestyle(el){if(el.classname == on onclick= playaudio() ) {el.classname= off onclick stopaudio() ;} else {el.classname= on ;}} </code></pre>,javascript | |
| iphone app crashes on device file not found i see this error unable to read symbols for /developer/platforms/iphoneos.platform/devicesupport/4.3.2 (8h7)/symbols/developer/usr/lib/libxcodedebuggersupport.dylib (file not found). i ve tried this <a href= https://stackoverflow.com/questions/4284277/libxcodedebuggersupport-dylib-is-missing-in-ios-4-2-1-development-sdk >solution</a> but it didn t work. can someone help me how to fix this issue.,iphone | |
| want to know the exact size of a data contend in any specified url hi all i want to know that while specifying url in my iphone native application for downloading purpose it works fine but if i want to know the exact size of data either in kb or in mb coming from that url how could i do that plz guide me to do that demonstarting a sample code would be a big boost thanks,iphone | |
| ways to get to know of key names inside a javascript object literal declare a javascript object literal <pre><code>var obja = { keya : vala } </code></pre> in the console <pre><code>obja > object {keya: vala } </code></pre> the object is not an array <pre><code>obja[0] > undefined </code></pre> the only way i know to get key names is to cicle on the object <pre><code>for (x in obja) { console.log(x); } > keya </code></pre> do you know any other ways to get key names from object,javascript | |
| uibutton delayed state change i have a <code>uibutton</code> subview inside of a <code>uitableviewcell</code>. when this button is touched the user must hold the button for about a half second for the button s image to change to the <code>uicontrolstatehighlighted</code> image. this means that if the user just taps the button as is usually the case the highlighted state is never shown. why does this occur and how can i fix it,iphone | |
| create a simple gui for a minimalistic python script i wrote a small python function which takes several numerical input parameters and prints many lines with statements which going to be used in an experiment like this toy example: <pre><code> def myadd(x y z): res = x + y + z print( the result is: {0}+{1}+{2}={3} ).format(x y z res) </code></pre> i would like to create a minimalistic gui simply an overlay which calls my myadd.py script where i can fill those parameters x y z and after clicking a compute button a text field occurs with the print statement. does anyone has a template i was looking into the tkinter but my attempts by manipulating other templates didn t succeed. would appreciate help thanks.,python | |
| how to copy a specific field from a list of any classes in java let s me start describe my problem. i have a class person which is stored in mpeople list. so it does mean that the mpeople will store both name and age . but in a certain circumstance i need a list of all people s name and a list of all people s age in different list. so is there a way to copy all the data in a specific field of a class in a list to another list or somewhere else <em>note: i know i can use for loop or enhance for loop to do this but it does not look so good through this. so just curious if someone found any better solutions... and i would appreciate your help!</em> <pre><code>public class person { // fields private int age; private string name; // constructor public person( int age string name ) { this.age = age; this.name = name; } // getter public int getage() { return age; } public string getname() { return name; } } //list of people list<person> mpeople = new arraylist<>(); mpeople.add( new person( 10 sovanara ) ); mpeople.add( new person( 20 dara ) ); </code></pre>,java | |
| how can a class know that its super class is object i have a java class samplea . how come samplea know that its super class is object here are my answers <ol> <li> during development the configuration of jre in eclipse will automatically say that each class has super class as object </li> <li> during deployment the class loaders take the responsibility of saying that super class is object . </li> </ol> please correct me.,java | |
| a proper way to make an hashmap with multiple value type i have an object the represent an entity. by example i have the user java object that have the followings field string name string first name string address boolean deadoralive. but now instead of having field i want to put them into a hashmap so my first reflex was to make it this way : <pre><code>private hashmap<string object> fieldshm; </code></pre> this would means that i have to cast my hm value when i want to use it and i don t want to make that because i need to know the type before i use my value. i want to make something like : <pre><code>set<string> keys = fieldshm.keyset(); for(string key : keys) { if(fieldshm.get(key).isboolean()) { // do the appropriate things } else { // do the thing for this case... } } </code></pre> i think it s possible in java would this be good to do it this way edit 1: i don t want to make a hashmap because this is not what i need. what i need is a way to browse the fields of the entity user fields by fields and depending the type of the field do the appropriate things.,java | |
| why cant i use an iterator this way <pre><code>iterator<string> iterator=... //right way for (iterator<string> i = iterator; i.hasnext(); ){ system.out.println(i.next()); } //why can t for(string i:iterator){ } </code></pre> <strong>reference:</strong> <a href= http://docs.oracle.com/javase/1.5.0/docs/guide/language/foreach.html rel= nofollow >http://docs.oracle.com/javase/1.5.0/docs/guide/language/foreach.html</a> <a href= http://docs.oracle.com/javase/6/docs/api/java/util/iterator.html rel= nofollow >http://docs.oracle.com/javase/6/docs/api/java/util/iterator.html</a>,java | |
| iphone: objc_class_name_tttabstrip symbol not found build error i am trying to implement scrollview effect in tabbar which has tabitems . i found that the good example is from facebook open source ttcatlog project tabs section. so i included all the source from it to my project and trying to build it. i have followed the following links to go ahead on this: <a href= https://stackoverflow.com/questions/822792/how-to-create-a-horizontal-scrolling-view-on-iphone >how to create a horizontal scrolling view on iphone </a> source: <a href= http://github.com/facebook/three20/tree/master/samples/ rel= nofollow noreferrer >http://github.com/facebook/three20/tree/master/samples/</a> my calling code is like below: <pre><code>_tabbar1 = [[tttabstrip alloc] initwithframe:cgrectmake(10 68 300 28)]; _tabbar1.tabitems = [nsarray arraywithobjects: [[[tttabitem alloc] initwithtitle:@ item 1 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 2 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 3 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 4 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 5 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 6 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 7 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 8 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 9 ] autorelease] [[[tttabitem alloc] initwithtitle:@ item 10 ] autorelease] nil]; [self.navigationcontroller.view addsubview:_tabbar1]; </code></pre> my project folder as like below: ..../iphone/myprogram/myprogram.xcodeproj ..../iphone/three20/src/three20.... in my project settings for header search path i have ../three20/src but when i try to build it it throws the following error: objc_class_name_tttabstrip symbol not found objc_class_name_tttabitem symbol not found i see there all these files (.h and .m) are availbale there. could someone please help what s wrong there and how do i get rid of this issue and continue working with it,iphone | |
| colon in javascript callback i m using the data layer on google maps with point geometries that occasionally use the same coordinates. to access all of the features at a given coordinate i m trying to use a port of overlappingmarkerspiderfier for the data layer instead of markers called <a href= https://github.com/slovely/overlappingfeaturespiderfier rel= nofollow >overlappingfeaturespiderfier</a>. i m have problems adding the click handler for the data layer. in the documentation it calls for: <pre><code>ofs.addlistener( click function(event: google.maps.data.mouseevent) { var thefeaturethatwasclicked = event.feature; } </code></pre> besides the missing parenthesis i can t figure out what s going on with that colon in the callback. any ideas,javascript | |
| dynamically add instance variables via decorator to a class in python i want to instrument a class via a decorator to add some <strong>instance</strong> variables that are specified by the author of the class. i started with the following code but this just adds <strong>class</strong> variables and i want <strong>instance</strong> variables (those that are normally declared in __ init __) what is a pythonic way to do this while allowing the class author control over what they put in __ init __ <pre><code>def add_list_attributes(klass): for attribute in klass.list_attributes: setattr(klass attribute []) return klass @add_list_attributes class person(object): list_attributes = [ phone_numbers ] def __init__(self): pass p1 = person() p1.phone_numbers.append( 01234 ) print p1.phone_numbers </code></pre>,python | |
| iphone skips over non-text form fields when using an iphone to fill out a form i hit the next button on top of the keyboard to navigate from one field to the next. non-text fields such as lookup and radio are skipped right over to the next text field. a dropdown field however can be accessed with next/previous. how to prevent this from happening any suggestions,iphone | |
| how can i return the else statement in function in javascript it gives unexpected token else <pre><code>var sleepcheck = function (numhours) { if (sleepcheck >= 8); return you re getting plenty of sleep! maybe even too much! ; else (sleepcheck < 8); return get some more shut eye! ; }; sleepcheck(10); sleepcheck(5); sleepcheck(8); </code></pre>,javascript | |
| how should i manage constants in a java project usually we manage constants in interfaces. e.g.: <pre><code>public interface commonconstant { int a_type1=0; int a_type2=1; } </code></pre> but i m thinking that if the constant belongs to a class we may just put it into that class e.g.: <pre><code>public class a { public enum type { type_one(0) type_two(1); public final int val; type(int val) { this.val = val; } } private int type; ... } </code></pre> so which way should be better,java | |
| pattern/function finding program in python i am looking for a program in python that can find a pattern or a function for a list of numbers. for example if the input was <code>2 4 6</code> the program would output something like <code>f = 2n</code>. but the program must be able to handle very very complicated and extremely long inputs. does anyone know of any such program,python | |
| is it possible to call a method of an object while passing that object into a function say i have a method <code>foo createfoo()</code>. i need to call the method <code>boolean foo.bar()</code> on the object returned by <code>foo createfoo()</code> then pass the object into a method <code>void baz(foo somefoo)</code>. is there a way to do this in one line if i didn t need to call <code>boolean foo.bar()</code> i could have done <pre><code>baz(createfoo()); </code></pre> but i can t do this because it doesn t call foo.bar(). i also can t do this: <pre><code>baz(createfoo().bar()); </code></pre> because that would pass into baz the boolean returned from <code>foo.bar()</code> not the actual foo object.,java | |
| .pls file parsing iam creating and radio application in which i have to check the authentication and after successful login i get .pls file in which there is actual url which has to be played so anybody know how to parse .pls file and get the url inside the .pls file.,iphone | |
| splitting the comma separated string and adding it into the list i have the below method which will return string. <pre><code> private string getexpectedlist() { return expectedslist; } </code></pre> so i am storing it in string like as shown below <pre><code>string t = this.getexpectedlist(); </code></pre> upon debugging i found that method inside t the string is like comma separated as shown below <pre><code>system.out.println(t); bonrs01721.am.grp.net:17202 bonrs01422.am.grp.net:17203 bonrs01622.am.grp.net:17204 </code></pre> i was thinking to design a method which will take the string and then split each of them and finally add it in list and the list will be of type string so finally a method of which return type is list so i have designed a list <pre><code> list<string> holdvalues = new list<string>(); </code></pre> how can i design such a method as mentioned above,java | |
| private api in mpmovieplayercontroller can we use private method in mpmovieplayercontroller e.g: -(void)setorientation:(int)orientation animated:(bool)value; for playing movie in portrait mode. did apple approve private api,iphone | |
| the itunesartwork image: is this needed every time or just in ad-hoc distribution cases i am not surfe if i really need every time this 512 x 512 pixel icon since i don t plan to use ad-hoc distribution. if i get it right ad-hoc distribution is the case when you make an app that is supposed to go only on a very few company iphones and you dont want anyone to get that app. if that s true i choose the other distribution type where anyone can get the app. would i need that image in that case,iphone | |
| how to do generic copy constructor in java could you please advise or give some hints how to do following. i have pojo lets say it is called bankhistorydata. i would like to copy data from two tables into this pojo (main table - bank and its archive - bankarchive). tables have a lot of fields which are basiclly the same so i would not like to repeat my self.<br> i googled around and found a tool that could help me with this - java generic constructor. but i am a little bit new with generics and not sure how exactly to do it.<br> i suppose i should have something like this: <pre><code>public class bankhistorydata<t extends serializable> { // i would like to set this fields from the object t private field1; private field2; // and many more ... t a; // source object from which to copy values public bankhistorydata(t a) { this.a = a; copydata(); } // not sure about this ... something like this public void copydata() { if(t instanceof bank) { this.field1 = ((bank)a).getsomefield(); // and so on ... } else if (t instanceof bankarchive) { this.field1 = ((bankarchive)a).getsomefield(); // and so on ... } else { trow new illegalargumentexception( not supported table ); } } } </code></pre> any suggestions are welcome. thanks! mismas [edit] i have decided not to use generic for this as i think those 2 cents from @alex where for that. instead i will do this copy logic in my business logic service layer (pojo will remain stupid ).<br> although i will make those two hibernate objects to implement common interface (only getter methods of shared fields will be here). and finally i will make a copy method on my business logic service layer and make it to take that interface parameter for copying fields.<br> hope this will help someone. also any comments are welcome.<br> cheers!,java | |
| do while loop not working (cannot find variable) i am having trouble with my do while loop not finding my variable to test if the condition is true or not. here is my code: <pre><code>import java.util.scanner; public class loops { public static void main(string[] args){ system.out.println( programmer: jarred sylvester ); system.out.println( course: cosc 111 winter 2016 ); system.out.println( lab#: 5 ); system.out.println( due date: feb. 18 2016 ); scanner prompt = new scanner(system.in); do{ system.out.print( \nenter a whole number: ); int num = prompt.nextint(); if(num % 2 == 0){ system.out.println(num + is even ); } else{ system.out.println(num + is odd ); } system.out.println( \nnumbers from 1 through +num+ are: ); for(int counter = 1; counter <= num; counter++){ system.out.print(counter + ); } int counter = 1; system.out.println( \n\nsquare of odd numbers from 1 through + num + are: ); while(counter <= num){ if(counter % 2 ==1){ system.out.print((counter * counter)+ ); } counter++; } counter = 1;int sum =0; system.out.println( \n\nsum of even numbers from 1 through +num+ is: ); while(counter <= num){ if(counter % 2 == 0){ sum+=counter; } counter++; } system.out.print(sum); system.out.println( \n\nnumbers from 1 through +num+ (5 numbers per line): ); for(int count = 1; count <= num; count++){ system.out.print(count + ); if(count % 5 == 0){ system.out.print( \n ); } } system.out.println( \n\ndo it again yes(or no) ); string play = prompt.next(); }while(play.equalsignorecase( yes )); } </code></pre> } the variable play at the end isn t being tested. am i out of scope or something i ve looked everywhere for an answer but cannot seem to find a solution to my error. thank you.,java | |
| how to print word from from string without digit and without using arrays in java input : hi ma name is jack & i am 23 years # thanks output :hi ma name is jack i am years thanks,java | |
| urlclassloader case classnotfoundexception when classname is pass by parameter when i use urlclassloader to loader class the follow code is ok <pre><code> class c1 = classloader.loadclass( jjzhu.study.tomcat.servlet.primitiveservlet ); for(method m: c1.getdeclaredmethods()){ system.out.println(m.getname()); } </code></pre> but when i do this way it throws classnotfoundexception <pre><code>class c = classloader.loadclass(string.format( jjzhu.study.tomcat.servlet.%s servletname)); </code></pre> why the full code of function is : <pre><code>public void process(request request response response) throws servletexception ioexception { string uri = request.geturi(); string servletname = uri.substring(uri.lastindexof( / ) + 1); string path = servletprocessor1.class.getresource( / ).tostring(); url classurl; urlclassloader classloader = null; try { classurl = new url(path+ jjzhu/study/tomcat/servlet ); system.out.println(path+ jjzhu/study/tomcat/servlet ); url[] classurls = {classurl}; classloader = new urlclassloader(classurls); // this is ok! class c1 = classloader.loadclass( jjzhu.study.tomcat.servlet.primitiveservlet ); for(method m: c1.getdeclaredmethods()){ system.out.println(m.getname()); } // but this failed class c = classloader.loadclass(string.format( jjzhu.study.tomcat.servlet.%s servletname)); for(method m: c.getdeclaredmethods()){ system.out.println(m.getname()); } servlet servlet = (servlet)c.newinstance(); servlet.service(request response); } catch (classnotfoundexception e) { e.printstacktrace(); } catch (illegalaccessexception e) { e.printstacktrace(); } catch (instantiationexception e) { e.printstacktrace(); } } </code></pre> the exception: <pre><code>init destroy service getservletconfig getservletinfo java.lang.classnotfoundexception: jjzhu.study.tomcat.servlet.primitiveservlet at java.net.urlclassloader.findclass(urlclassloader.java:381) at java.lang.classloader.loadclass(classloader.java:424) at java.lang.classloader.loadclass(classloader.java:357) at jjzhu.study.tomcat.ex02.pyrmont.servletprocessor1.process(servletprocessor1.java:39) at jjzhu.study.tomcat.ex02.pyrmont.httpserver1.await(httpserver1.java:41) at jjzhu.study.tomcat.ex02.pyrmont.httpserver1.main(httpserver1.java:60) </code></pre>,java | |
| javascript: parsing a number with multiplication by 1.0 is it safe to parse a number from a string like this <pre><code>rate *= 1.0; straf.setdelay((rate+1)*1000); </code></pre> <code>rate</code> is a string which contains only 1 number.,javascript | |
| how to group strings by sequential occurrence and check for values > x in another column for the following data structure i would like to use python to find the number of sequential occurrences of a pattern in column c0 >= than a threshold x and the number of corresponding values in another column prcc0 that are >= than a threshold y for the example below if thresholds x = 3 and y is 40 then the algorithm should output. rows 2:4 for string pattern b occurring >= 3 and corresponding prcc0 values >= 40 the algorithm should scan the entire data frame for such sequential patterns. <pre><code>seq nmin nuniqe n3wj prc3wj c0 prcc0 0 s00000 482 9 172 35.68 a 1.65 1 s00001 503 10 193 38.37 a 15.33 2 s00002 415 9 221 53.25 b 44.03 3 s00003 325 10 155 47.69 b 42.99 4 s00004 429 10 175 40.79 b 43.37 </code></pre>,python | |
| iphone:storyboard issue with default labels i created views using storyboard. in one of the view controller i added a tableview as its the easy way of doing in storyboard. i am seeing two labels in each cell by default. i want to customize it now i don t want these two labels here and i want to add some image view textfield etc. the problem now is i am not able to remove this default two labels from cell. can someone guide me also please share me the apple official link where i can learn about storyboard and complete usage. thank you in advance!,iphone | |
| run a function on first time page load not on page refresh in javascript i would like a function to be executed only on the first page load and not when page is refreshed. for example it should not execute when the user clicks on the submit button or on other page refresh. i can avoid it in .net by using the <code>ispostback</code> property but how can i do this in javascript,javascript | |
| python: break while loop i am using a code that takes an input of image files (can be any number in the source folder) and processes them and then saves the files. i am using a <code>while loop</code> to save the files. but the problem i am facing is that once the loop processes all the images and saves them it starts all over again. how can i break the loop once all the images in the source folder have been processed and saved the code i am using is: <pre><code># construct the argument parse and parse the arguments ap = argparse.argumentparser() ap.add_argument( -i --images required=true help= path to images directory ) args = vars(ap.parse_args()) # initialize the hog descriptor/person detector hog = cv2.hogdescriptor() hog.setsvmdetector(cv2.hogdescriptor_getdefaultpeopledetector()) # loop over the image paths imagepaths = list(paths.list_images(args[ images ])) #open images in a sequence imagepaths.sort() i =1 while true: for imagepath in imagepaths: # load the image and resize it to (1) reduce detection time # and (2) improve detection accuracy image = cv2.imread(imagepath) image = imutils.resize(image width=min(700 image.shape[1])) orig = image.copy() # detect people in the image (rects weights) = hog.detectmultiscale(image winstride=(4 4) padding=(8 8) scale=1.05) # draw the original bounding boxes for (x y w h) in rects: cv2.rectangle(orig (x y) (x + w y + h) (0 0 255) 2) # apply non-maxima suppression to the bounding boxes using a # fairly large overlap threshold to try to maintain overlapping # boxes that are still people rects = np.array([[x y x + w y + h] for (x y w h) in rects]) pick = non_max_suppression(rects probs=none overlapthresh=0.65) # draw the final bounding boxes for (xa ya xb yb) in pick: cv2.rectangle(image (xa ya) (xb yb) (0 255 0) 2) # show some information on the number of bounding boxes filename = imagepath[imagepath.rfind( / ) + 1:] print( [info] {}: {} original boxes {} after suppression .format( filename len(rects) len(pick))) cv2.imwrite( %d.png % (i) image) i +=1 </code></pre>,python | |
| finding number of changes to make 2 strings anagram i want to find the minimum number of characters of the first string that needs to be changed to enable me to make it an anagram of the second string. 1st problem it always return -1 <pre><code>function anagram(s) { if (s % 2 == 0) { var len = s.legnth; var diff = []; for (var x = 0; x < len / 2; x++) { var y = s[x]++; } for (var x = len / 2; x < s.legnth; x++) { var z = s[x]++; } y = y.sort().splice( ).tostring(); z = y.sort().splice( ).tostring(); for (var x = 0; i < z.length; x++) { if (y[x] != z[x]) { diff.push(y[x]); } } return diff.length; } else { return -1; } } function main() { var q = parseint(readline()); for (var a0 = 0; a0 < q; a0++) { var s = readline(); var result = anagram(s); process.stdout.write( + result + \n ); } } </code></pre>,javascript | |
| superinterface in java what is super-interface is java what is the purpose of super-interface,java | |
| create a new class and load some copies of it into the view ok i made a small application with a small ball bouncing on the screen. that was esay. now i d like to have more than one ball... so i think the best way is to create a new class : the ball. how can i do it thanks!,iphone | |
| iphone app - show phone pad above the tabbar i am working on iphone app that has tab bar at the bottom of the screen. i need to show phone pad like the apple iphone s default phonepad when making call above the tab bar. how can i do it if it is not possible do i need images for each number to style them to look like iphone phonepad or this can be done by changing background color etc of the buttons,iphone | |
| is it able to create folders with python i am writing a pokemon game and i want to make folders to save different types of pokemon as well as other sorts of information in. i want to use folders because it would be really messy if i were to save all my data into a single file. is it possible to create folders with a python program this would make it easier and cleaner for me when i try to import the pokemon data from external websites.,python | |
| standard default first argument to pass to fn.apply i have recently learned about the magic of <code>fn.apply()</code> in javascript and i am using it to save function calls with all their arguments intact and call them at a later date. however in my use case i do not need the first argument the context (<code>this</code>) and i d like to avoid passing the <code>this</code> object into it somehow in order to make it clear in my code that i m not using <code>.apply()</code> for that. my first thought was passing in <code>null</code> but i read the following on <a href= https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/function/apply rel= nofollow >mdn</a>: <blockquote> if the method is a function in non-strict mode code <code>null</code> and <code>undefined</code> will be replaced with the global object and primitive values will be boxed. </blockquote> this seems to imply that passing <code>null</code> or even <code>false</code> is bad practice. what would be an appropriately falsy empty or otherwise obviously placeholder value to put into <code>fn.apply()</code> s first argument,javascript | |
| match divs by id and delete content inside that i have couple of divs like <pre><code><div id= rg_dia_0 > zdszczxvzxvzxvc </div> <div id= rg_dia_1 > dfgdzxczc </div> <div id= rg_dia_2 > hfhgjhgjdj </div> </code></pre> i need javascript to fetch all the divs and delete the content. i think we can use regex to match the ids as only the number that is changing.,javascript | |
| learn python the hard way exercise 35 boolean expression i am wondering how the lines <pre><code>elif choice == taunt bear and not bear_moved: print the bear has moved from the door. you can go through it now. bear_moved = true </code></pre> ... and ... <pre><code>elif choice == taunt bear and bear_moved: dead( the bear gets pissed off and chews your leg off. ) </code></pre> ... implement the variable <code>bear_moved</code> it is already defined as <code>false</code> before the <code>while</code> loop and i am wondering why it is compared to what is entered in choice and how it checks it when you are just typing your answer. also if it says <code>not</code> <code>bear_moved</code> doesn t that make the variable true then why is it defined as true under it <pre><code>def bear_room(): print there is a bear here. print the bear has a bunch of honey. print the fat bear is in front of another door. print how are you going to move the bear bear_moved = false while true: choice = raw_input( > ) if choice == take honey : dead( the bear looks at you then slaps your face off. ) elif choice == taunt bear and not bear_moved: print the bear has moved from the door. you can go through it now. bear_moved = true elif choice == taunt bear and bear_moved: dead( the bear gets pissed off and chews your leg off. ) elif choice == open door and bear_moved: gold_room() else: print i got no idea what that means. </code></pre>,python | |
| how handle error in nspredicate when i try to match regular expression for data . sometime application crashes with error here is error description can t do regex matching reason: can t open pattern u_regex_invalid_range (string ertyu pattern [a-z] case 0 canon 0) here is my code <pre><code> - (bool)isvalidatestring:(nsstring *)instring forre:(nsstring *)inre { bool isvalidate=no; nspredicate *thepredicate= [nspredicate predicatewithformat:@ self matches %@ inre]; isvalidate= [thepredicate evaluatewithobject:instring]; return isvalidate; </code></pre> } and in this method re is getting from server.,iphone | |
| why is my compiler giving me these two errors in java i m writing a code in java and i keep getting two errors from the compiler saying cannot find symbol. here is my code and the errors. <pre><code>public complexnumber(float a float b){ a = real; b = imaginary; } </code></pre> here are the two errors. <pre><code>complexnumber.java:22: error: cannot find symbol a = real; ^ symbol: variable real location: class complexnumber complexnumber.java:23: error: cannot find symbol b = imaginary; ^ symbol: variable imaginary location: class complexnumber 2 errors </code></pre> any advice is greatly appreciated. thanks in advance!,java | |
| why foo .tostring() is not the same as tostring.call( foo ) here is a question in javascript below: <pre><code>// tested via google chrome console. var tostring = object.prototype.tostring; foo .tostring(); // foo tostring.call( foo ); // [object string] [].tostring(); // tostring.call([]); // [object array] {}.tostring(); // syntax error tostring.call({}); // [object object] </code></pre> why the result of tostring is different with tostring.call() <strong>updated</strong> <pre><code>string.prototype.tostring.call( foo ); // foo object.prototype.tostring.call( foo ); // [object string] </code></pre> is string.prototype.tostring not from the prototype chain like below <blockquote> tostring in string[not found] --> tostring in string.prototype[not found] <pre><code> --> tostring in object.prototype[found] </code></pre> </blockquote>,javascript | |
| webservice in iphone <blockquote> <strong>possible duplicate:</strong><br> <a href= https://stackoverflow.com/questions/1497222/how-to-use-webservice-in-iphone-objective-c >how to use webservice in iphone objective c </a> </blockquote> how to call webservice in iphone,iphone | |
| how to convert ascii to hex in python how to convert ascii to hex in python i have one file need to read . but use below code it only can show ascii <pre><code>with open( hello.dat rb ) as f: data= f.read() print(data) </code></pre> it can print data in this format: <blockquote> 01201602180000020000000007000000000054000000000000\x0 </blockquote> how do i to convert this data to hex values like this: <blockquote> 30 31 32 30 31 36 30 32 31 38 30 30 30 30 30 32 30 30 30 30 30 30 30 30 30 37 30 30 30 30 30 30 30 30 30 30 35 34 30 30 30 30 30 30 30 30 30 30 30 30 5c 78 30 </blockquote>,python | |
| passing two variables to one javascript function i have completed if i pass a variable <code>id</code> but now i want to pass <code>name</code> to the same function when i click on a image. this is my code: <pre><code> for (var i = 0; i <friend_data.length; i++) { results += <div class = clicker id = +friend_data[i].id+ onclick= javascript:testid(this.id + friend_data[i].name+ ) ><img src= https://graph.facebook.com/ + friend_data[i].id + /picture height= 30 width= 30 > + friend_data[i].name + </div> ; } </code></pre> and <pre><code>function testid(id friend_data[id].name ){ alert(id); alert(friend_data[i].name); } </code></pre> the <code>alert(friend_data[i].name);</code> does not show because it s wrong. please help me to correct it. please look in even <code>onclick</code> it s the right ways to pass variable,javascript | |
| javascript: adding ten integer variables and getting wrong totals i m building a simple order form with ten items. the user enters a number in one or more of the quantity fields. on onchange the script is supposed to add up the entries and multiply by the price. easy right if the user enters 1 for the tenth item the code works perfectly. but if he enters 1 on the ninth item the code generates 10 instead of 1. and on the eighth 1 entered gets a value of 100 and so forth. working on it for six hours and can t seem to find the problem. i have the code i d be happy to supply. help! update: got help to figure it out. added to comment below,javascript | |
| escaping two lists in python so basically i have a really typical issue i found some solutions from stackoverflow before but this didn t really help me. i have a school task which requires me to analyze bobsleigh team. i have names their rating and weight in three separate lists and i need to pick four competitors with best ratings and their weight combined must not be over 325 kg. what i ve already done is i ve created a <code>for</code> cycle which picks out four competitors with highest rating but the issue is that they may have high ratings but their weight combined is over 325 kg. for example i have three lists: <pre><code>[ name1 name2 name3 name4 name5 name6 name7 name8 ] ## names [1 2 3 4 5 6 7 8] ##ratings [50 60 70 80 90 100 110 120] ##weights </code></pre> what i get is <code>[5 6 7 8]</code> (and every single one of them has a according weight list and name list for example for rating 5 goes competitor with weight of 90 kg and name is name 5) but their weight combined is higher than 325kg (90+100+110+120 > 325) i ve done coding so far that the minimal element (5) is removed and replaced by another lower element but the issue occurs (by issue i mean i don t know how to do it) when switching the last element is not enough and i need to try to replace element 6 and keep the element 5 in place. right now the code for switching is: <pre><code>while (kaalude_summa > 325): #if weight is over 325 kg positsioon = reiting.index(max(reiting)) #position for max rating if kaalud[positsioon] < kaalude_tulemused[3]: #two lists - one is for elements not in the resulting list (kaalud) and one is for the elements in resulting list (kaalude_tulemused) kaalude_tulemused[3] = kaalud[positsioon] #sets new weight in result list tulemuslist.remove(min(tulemuslist)) #removes number 5 from example list [5 6 7 8] (check above) tulemuslist.append(max(reiting)) #adds number 4 from example list kaalude_summa = kaalude_summa - vahekaal + kaalude_tulemused[3] #new calculated weight reiting.remove(max(reiting)) #removes element from list [1 2 3 4] kaalud.remove(kaalud[positsioon]) </code></pre> this works as long as the competitors with rating 1 2 3 or 4 weight + other three weights (6 7 8) isn t bigger than 325. i understand this could be done somehow with two for loops but i tried three times and failed miserably. it is compulsory to write code in estonian in our school so i apologize for not writing in english. i really hope that what i wrote is readable and you are able to help me. thank you in advance.,python | |
| simple coding problems in the country of rahmania the cost of mailing a letter is 40 sinas for letters up to 30 grams. between 30 g and 50 g it is 55 sinas. between 50 g and 100 g it is 70 sinas. over 100 g it costs 70 sinas plus an additional 25 sinas for each additional 50 g (or part thereof). for example 101 grams would cost 70 + 25 = 95 sinas. 149 g would also cost 95 sinas because both of these packages only use the first 50 g over 100 g. write a program that prompts the user for a mass and then gives the cost of mailing a letter having that mass. this is the question and the only part i don t know how to do is the last part with the additional 25 sinas for each additional 50g. can someone show me how to write this part of the code i use netbeans btw. <pre><code>scanner input = new scanner(system.in); double l; l = input.nextint(); x = l >= 100 / 50 * 25 + 70; if (l <= 30) { system.out.println( 40 sinas ); } if (l > 30 && l < 50) { system.out.println( 55 sinas ); } if (l > 50 && l < 100) { system.out.println( 70 sinas ); } if (l >= 100) { system.out.println( ); } </code></pre> here s the important part of the code. as you can see i need help on the last part.,java | |
| why is my iphone application crashing my application get crashing. it s loading data of all the cities and when i click its displaying my detailed view controller. when i am getting back from my controller and selecting another city my application get crashed. i am pasting my code. <pre><code>#import citynameviewcontroller.h #import cities.h #import xmlparser.h #import partytemperature_appdelegate.h #import cityeventviewcontroller.h @implementation citynameviewcontroller //@synthesize acities; @synthesize appdelegate; @synthesize currentindex; @synthesize acities; /* // the designated initializer. override if you create the controller programmatically and want to perform customization that is not appropriate for viewdidload. - (id)initwithnibname:(nsstring *)nibnameornil bundle:(nsbundle *)nibbundleornil { if ((self = [super initwithnibname:nibnameornil bundle:nibbundleornil])) { // custom initialization } return self; } */ // implement viewdidload to do additional setup after loading the view typically from a nib. - (void)viewdidload { [super viewdidload]; self.title=@ cities ; appdelegate=(partytemperature_appdelegate *)[[uiapplication sharedapplication]delegate]; } /* // override to allow orientations other than the default portrait orientation. - (bool)shouldautorotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation { // return yes for supported orientations return (interfaceorientation == uiinterfaceorientationportrait); } */ - (nsinteger)numberofsectionsintableview:(uitableview *)tableview { // return the number of sections. return 1; } - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section { // return the number of rows in the section. return [appdelegate.citylistarray count]; } - (cgfloat)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath { return 95.0f; } - (void)tableview:(uitableview *)tableview willdisplaycell:(uitableviewcell *)cell forrowatindexpath:(nsindexpath *)indexpath { cell.accessorytype=uitableviewcellaccessorydisclosureindicator; cell.textlabel.textcolor = [[[uicolor alloc] initwithred:0.2 green:0.2 blue:0.6 alpha:1] autorelease]; cell.detailtextlabel.textcolor = [uicolor blackcolor]; cell.detailtextlabel.font=[uifont systemfontofsize:10]; if (indexpath.row %2 == 1) { cell.backgroundcolor = [[[uicolor alloc] initwithred:0.87f green:0.87f blue:0.87f alpha:1.0f] autorelease]; } else { cell.backgroundcolor = [[[uicolor alloc] initwithred:0.97f green:0.97f blue:0.97f alpha:1.0f] autorelease]; } } // customize the appearance of table view cells. - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { static nsstring *cellidentifier = @ cell ; uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:cellidentifier]; if (cell == nil) { cell = [[[uitableviewcell alloc] initwithstyle:uitableviewcellstylesubtitle reuseidentifier:cellidentifier] autorelease]; cell.selectionstyle= uitableviewcellselectionstyleblue; // cell.accessorytype=uitableviewcellaccessorydisclosureindicator; cell.backgroundcolor=[uicolor bluecolor]; } // acities=[appdelegate.citylistarray objectatindex:indexpath.row]; // cell.textlabel.text=acities.city_name; cell.textlabel.text=[[appdelegate.citylistarray objectatindex:indexpath.row]city_name]; return cell; } - (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath{ //http://compliantbox.com/party_temperature/citysearch.php city=amsterdam&latitude=52.366125&longitude=4.899171 nsstring *url; acities=[appdelegate.citylistarray objectatindex:indexpath.row]; if ([appdelegate.citylistarray count]>0){ url=@ http://compliantbox.com/party_temperature/citysearch.php city= ; url=[url stringbyappendingstring:acities.city_name]; url=[url stringbyappendingstring:@ &latitude=52.366125&longitude=4.899171 ]; nslog(@ url value is %@ url); [self parsecityname:[[nsurl alloc]initwithstring:url]]; } } -(void)parsecityname:(nsurl *)url{ nsxmlparser *xmlparser=[[nsxmlparser alloc]initwithcontentsofurl:url]; xmlparser *parser=[[xmlparser alloc] initxmlparser]; [xmlparser setdelegate:parser]; bool success; success=[xmlparser parse]; if (success) { nslog(@ sucessfully parsed ); cityeventviewcontroller *cityeventviewcontroller=[[cityeventviewcontroller alloc]initwithnibname:@ cityeventviewcontroller bundle:nil]; cityeventviewcontroller.index=currentindex; [self.navigationcontroller pushviewcontroller:cityeventviewcontroller animated:yes]; [cityeventviewcontroller release]; cityeventviewcontroller=nil; } else { nslog(@ try it idoit ); uialertview *alert=[[uialertview alloc] initwithtitle:@ alert! message:@ event not in radius delegate:self cancelbuttontitle:@ ok otherbuttontitles:nil]; [alert show]; [alert release]; } } - (void)didreceivememorywarning { // releases the view if it doesn t have a superview. [super didreceivememorywarning]; // release any cached data images etc that aren t in use. } - (void)viewdidunload { [super viewdidunload]; // release any retained subviews of the main view. // e.g. self.myoutlet = nil; } - (void)dealloc { [acities release]; [super dealloc]; } @end </code></pre> and the error is <pre><code>*** terminating app due to uncaught exception nsrangeexception reason: *** -[nsmutablearray objectatindex:]: index 1 beyond bounds for empty array *** call stack at first throw: </code></pre>,iphone | |
| java.util.concurrentmodificationexception with xfire-all-1.0 version i facing problem with x-fire-all-1.0 version jar. in our application we implemented webservices for this we are using xfire-all-1.0.jar. working fine with this. but some times on our jboss console getting following exceptions. this is i am not getting always. as per my application requirement when client sends the request to get list of merchants details [our webservice returns the all the merchant details in success scenario] response document is preparing with the help of x-fire api. but some times getting following issue. how to resolve it.is the bug in xfire-all-1.0.jar <pre><code>java.util.concurrentmodificationexception at org.jdom.contentlist$filterlistiterator.checkconcurrentmodification(contentlist.java:940) at org.jdom.contentlist$filterlistiterator.nextindex(contentlist.java:829) at org.jdom.contentlist$filterlistiterator.hasnext(contentlist.java:785) at org.codehaus.xfire.wsdl.abstractwsdl.cleanimports(abstractwsdl.java:194) at org.codehaus.xfire.wsdl.abstractwsdl.updateimports(abstractwsdl.java:121) at org.codehaus.xfire.wsdl11.builder.wsdlbuilder.write(wsdlbuilder.java:165) at org.codehaus.xfire.wsdl11.builder.wsdlbuilderadapter.write(wsdlbuilderadapter.java:40) at org.codehaus.xfire.defaultxfire.generatewsdl(defaultxfire.java:104) at org.codehaus.xfire.transport.http.xfireservletcontroller.generatewsdl(xfireservletcontroller.java:380) at org.codehaus.xfire.transport.http.xfireservletcontroller.doservice(xfireservletcontroller.java:125) at org.codehaus.xfire.transport.http.xfireservlet.doget(xfireservlet.java:107) at javax.servlet.http.httpservlet.service(httpservlet.java:690) at javax.servlet.http.httpservlet.service(httpservlet.java:803) at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:290) at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) at org.jboss.web.tomcat.filters.replyheaderfilter.dofilter(replyheaderfilter.java:96) at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:235) at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) at org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:230) at org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:175) at org.jboss.web.tomcat.security.securityassociationvalve.invoke(securityassociationvalve.java:182) at org.jboss.web.tomcat.security.jacccontextvalve.invoke(jacccontextvalve.java:84) at org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:127) at org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:102) at org.jboss.web.tomcat.service.jca.cachedconnectionvalve.invoke(cachedconnectionvalve.java:157) at org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:109) at org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:262) at org.apache.coyote.http11.http11processor.process(http11processor.java:844) at org.apache.coyote.http11.http11protocol$http11connectionhandler.process(http11protocol.java:583) at org.apache.tomcat.util.net.jioendpoint$worker.run(jioendpoint.java:446) at java.lang.thread.run(thread.java:662) 19:58:05 722 error [[xfireservlet]] servlet.service() for servlet xfireservlet threw exception java.util.concurrentmodificationexception at org.jdom.contentlist$filterlistiterator.checkconcurrentmodification(contentlist.java:940) at org.jdom.contentlist$filterlistiterator.nextindex(contentlist.java:829) at org.jdom.contentlist$filterlistiterator.hasnext(contentlist.java:785) at org.codehaus.xfire.wsdl.abstractwsdl.cleanimports(abstractwsdl.java:194) at org.codehaus.xfire.wsdl.abstractwsdl.updateimports(abstractwsdl.java:121) at org.codehaus.xfire.wsdl11.builder.wsdlbuilder.write(wsdlbuilder.java:165) at org.codehaus.xfire.wsdl11.builder.wsdlbuilderadapter.write(wsdlbuilderadapter.java:40) at org.codehaus.xfire.defaultxfire.generatewsdl(defaultxfire.java:104) at org.codehaus.xfire.transport.http.xfireservletcontroller.generatewsdl(xfireservletcontroller.java:380) at org.codehaus.xfire.transport.http.xfireservletcontroller.doservice(xfireservletcontroller.java:125) at org.codehaus.xfire.transport.http.xfireservlet.doget(xfireservlet.java:107) at javax.servlet.http.httpservlet.service(httpservlet.java:690) at javax.servlet.http.httpservlet.service(httpservlet.java:803) at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:290) at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) at org.jboss.web.tomcat.filters.replyheaderfilter.dofilter(replyheaderfilter.java:96) at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:235) at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) at org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:230) at org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:175) at org.jboss.web.tomcat.security.securityassociationvalve.invoke(securityassociationvalve.java:182) at org.jboss.web.tomcat.security.jacccontextvalve.invoke(jacccontextvalve.java:84) at org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:127) at org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:102) at org.jboss.web.tomcat.service.jca.cachedconnectionvalve.invoke(cachedconnectionvalve.java:157) at org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:109) at org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:262) at org.apache.coyote.http11.http11processor.process(http11processor.java:844) at org.apache.coyote.http11.http11protocol$http11connectionhandler.process(http11protocol.java:583) at org.apache.tomcat.util.net.jioendpoint$worker.run(jioendpoint.java:446) at java.lang.thread.run(thread.java:662) </code></pre>,java | |
| create dynamic uiview i want to create a uiview with end points(not only the origin but also the 3 endpoints) specified by the position of other 3 views.so that when i move the endpoint views this view also should move.is it possible,iphone | |
| automatically generated user id i am making an iphone application in which there is use of database. i want that whenever user put his or her information there should be unique id no for each user. but this id no should generate automatically. how can i do this..please help me. thanks alot.,iphone | |
| opening an image in a popup: how to get its size when the image is loaded i am writing a script that looks for links of the kind <code><a href= image_url >...</a></code> where image_url is the url of an image and then adds to those tags an <code>onclick= popupimage(this) </code> attribute to them that opens a popup displaying the image. i know how to look for those tags and my question is about writing the popupimage function. so far i have <pre><code>function popupimage(link){ window.open(link image width=400 height=400 ); } </code></pre> this works pretty well but i would like to resize the popup to fit the image once it s loaded. thus i would probably need something of the kind <pre><code>function popupimage(link){ w=window.open(link image width=400 height=400 ); w.onload = function(){ ... do something to get the size of the image... ... resize the popup (this i know how to do)... } } </code></pre> but i don t know how to access the image loaded by the window since it has no dom... the thing is that i really don t want to write some html into the popup to display the image (for some other reasons). any suggestion would be much appreciated. thanks in advance!,javascript | |
| read digits (instead of int) from a txt file in java i have a file like this test.txt: 122352352246 12413514316134 now i want to read each digit a time and store it as one element in say a list. i tried using scanner. but it will read a line each time and outputs a long integer. that means if i want to get the digits i need to further separate the digits in that integer. i guess there must be an elegant way to directly read one digit each time. below is my code <pre><code>public class readdigits { public static void main(string[] args) throws ioexception{ list<integer> list = new arraylist<integer>(); file file = new file( test.txt ); scanner in = new scanner(file); int c; try { while (in.hasnext()){ c = in.nextint(); list.add(c); } } finally { system.out.println(list); in.close(); } } } </code></pre>,java | |
| component reuse in common module i have two components in a java ee web application. these components differ only on two to three fields. both perform the same action i.e. save data in the database and send some mail. what would be a better way to implement them currently i have two options: <ol> <li> have a common vo pass base class to service and dao layer then based on the object type do the necessary actions in the dao class as both the modules data sit in two different tables. </li> <li> have common interfaces common vo but a separate service and dao. </li> </ol> can anybody let me know what is better and why or if there is a better way,java | |
| dismissmodalview doesn t respond to touches in myappdelegate when a button is pressed it presents a modal view: <pre><code>- (void) showinfopanel:(id)sender { </code></pre> infoviewcontroller = [[infoviewcontroller alloc] init]; uinavigationcontroller *infonavcontroller = [[uinavigationcontroller alloc] init]; infonavcontroller.navigationbarhidden = yes; [window addsubview:infonavcontroller.view]; [infonavcontroller presentmodalviewcontroller:infoviewcontroller animated:yes]; } in infoviewcontroller i have to dismiss the modal view: <pre><code>- (void) exitinfopanel:(id)sender { [self.parentviewcontroller dismissmodalviewcontrolleranimated:yes]; </code></pre> } although it works the myappdelegate window doesn t respond to touches anymore. instead in the infoviewcontroller if: <pre><code>[self.view removefromsuperview]; </code></pre> it respond to touches but i lose the animation of dismissing the modal view. what i am doing wrong why it doesn t respond to touches when the modalview is dismissed thanks,iphone | |
| iphone application development home button im new to iphone development.can somebody please tell me how can i putt home button to each view of my application. pressing home button user will be provided home screen. thanks,iphone | |
| python: editing a single line in a text file i have a plain text html file and am trying to create a python script that amends this file. one of the lines reads: <pre><code>var mylatlng = new google.maps.latlng(lat long); </code></pre> i have a little python script that goes off and grabs the co-ordinates of the international space station. i then want it to amend a file to add the latitude and longitude. is it possible to use regex and parse just that one line i don t fancy parsing the entire file. if it is possible which module would be best to use and how would i point it at that line,python | |
| "creating string out of object in javascript i am trying to assemble a certain string out of a javascript object and am having some problems. i created a function that takes the object and should return the string. the initial object looks like so: <pre><code>var testobject = { topics : [ other new1 ] other : [ try this this also ] }; </code></pre> and i would like the string to spit out this: <pre><code> topics~~other|topics~~new1|other~~try this|other~~this also </code></pre> here is what i have now: <div class= snippet data-lang= js data-hide= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>var testobject = { | |
| topics : [ other new1 ] | |
| other : [ try this this also ] | |
| }; | |
| function transformobjecttostring(activefilters) { | |
| var newstring = ; | |
| var checkfiltergroups = function(filtertopic) { | |
| activefilters[filtertopic].map(function(selectedfilter) { | |
| var tempstring = filtertopic + ~~ + selectedfilter + | ; | |
| console.log( check string tempstring); | |
| newstring.concat(tempstring); | |
| }); | |
| } | |
| for (var filtergroup in activefilters) { | |
| checkfiltergroups(filtergroup); | |
| } | |
| return newstring; | |
| } | |
| console.log(transformobjecttostring(testobject));</code></pre> | |
| </div> | |
| </div> | |
| the temp string seems to be formatted correctly when i check the log but for whatever reason it looks like the <code>concat</code> is not working as i assumed it would.",javascript | |
| python list data received from external device rfsniffer i have a program in python that receives data from an external device. <pre><code>(...) while true: s = check_output([ ./rfsniffer ]) (...) </code></pre> how can i save my data into a list or array while it is receving data,python | |
| combine tabbar and navigation bar how to pushviewcontroller i drag a tabbar controller into mainwindow.xib then put a navigation controller into tabbar controller so one of my tab page is navigation page. i set the root view of navigation controller (navrootviewcontroller.h / .m) give me one way to call -pushviewcontroller: animated:,iphone | |
| character validation for each newline i m trying to find a way to validate if each line being read from srcfile starts with an alpha character. i tried using the character.isletter() method but it complains about line being declared as a string and not a char array...from what i thought a string is an array of characters but appearently isletter() does not work in that way. i m wondering what method i could use. i want to filter the data from srcfile and place it a hashmap and vector but i first need to find an effective and clean way to figure out if the line starts with alpha characters. i also thought about using string.contains() because i know what specfic char sequence i m looking for but it would proce to be more verbose and possibly uneccesary way of coding and it also makes my program less generic which i want to a certain extent. <pre><code> try { scanner myscanner = new scanner(srcfile); // why not declare line outside while loop // and write cond. as (line = myscan... != null) while (myscanner.hasnextline()) { string line = myscanner.nextline(); //system.out.println(line); if (character.isletter(line[0])) { } } myscanner.close(); } catch (filenotfoundexception e) { e.printstacktrace(); } </code></pre> the rest of the condition would like this: <pre><code> //if first char start with a aplha char move to the ticket list if (char.isletter(line[0])) { ticket t = new ticket(); t.parseline(line); //logger.debug(line); tickets.add(t); } else { sbpeople sbupeople = new sbpeople(); sbupeople.parseline(line); </code></pre>,java | |
| define myself d file type using cfbundledocumenttypes i know i can define file type using in appinfo.plist such as zip pdf etc is it possible define any type with special extension such as .mydatafiletype or .datafiletype welcome any comment,iphone | |
| java reference variable in void ref method i am trying to figure out how to access the sb variable in the void ref method. is it possible this problem came up as i prepare for a test. <pre><code>public class x{ public void ref(string refstr stringbuilder refsb){ refstr = refstr + refsb.tostring(); refsb.append(refstr); refstr = null; refsb = null; //how can i access main variable sb here not possible //sb.append(str); } public static void main(string[] args){ string s = mystring ; stringbuilder sb = new stringbuilder( -mystringbuilder- ); new x().ref(s sb); system.out.println( s= +s+ sb= +sb); } } </code></pre>,java | |
| what is typeof define === function && define[ amd ] used for what purpose does the following code serve what does factory function do here here root is window object. is factory a default java script function in what kind of scenarios this type of code can be used. this code is from <a href= http://simontabor.com/labs/toggles/ rel= noreferrer >toggle.js from simon tabor</a>. zepto and ender are libraries. is this mostly used in libraries. <pre><code> if (typeof define === function && define[ amd ]) { define([ jquery ] factory); } else { factory(root[ jquery ] || root[ zepto ] || root[ ender ] || root[ $ ]|| $); } </code></pre>,javascript | |
| convert byte[] to base64 and ascii in python i am new to python and i m quite struggling to convert and array of byte to base64 string and/or ascii. tried googling stuff but can t seem to find a solution. i can do this easily in c# but can t seem to do this in python 2.x/3.x any help is greatly appreciated. thanks in advance.,python | |
| fullcalendar on iphone is it possible to use fullcalendar on iphone native app reading events from servlet on a remote server features required are month week and day view. no need of adding editing or deleting events. clicking on event display the summary of the event. i would be very happy if fullcalendar is capable of the same if no what are the other solutions. expecting your guidance. thanks in advance,iphone | |
| i need help making a loop in an if-else statement in java <pre><code>import java.util.scanner; public class phonenumberformat { public static void main(string [] args) { //create the scanner class for user input scanner keyboard = new scanner(system.in); system.out.println( please enter your phone number: ); string number = keyboard.next(); /* separate the number into the three categories i want * side-note: since we can assume that the phone number will be 10 digits long i don t * have to figure out the length of the number that the user will input */ string area_code = number.substring(0 3); string first_three = number.substring(3 6); string rest = number.substring(6 10); int new_number = integer.parseint(number); if (new_number < 10){ system.out.println( it seems that you have entered an invalid phone number please try again! ); /* i want to make a loop here so that if the user accidentally enters more of less than * a 10 digit number it will loop the please enter your phone number: part so * java won t give an error */ } else { //concatenate the number properly so that it is formatted nicely string formatted_number = ( + area_code + ) + + first_three + - + rest; } string final_number = integer.tostring(formatted_number); //print the newly formatted number system.out.println(formatted_number); } } </code></pre> so this program is supposed to format a phone number from 1112223333 to (111) 222-3333. the assignment said that we can assume that the user will input an unformatted phone number however i want to put in a little safety so that if the user by change happens to input a number that isn t 10 digits long instead of an error it will prompt them to re-enter the number. thanks!,java | |
| java encoding for gb2312 character ® replacing with question mark( ) i m trying to get encoded value using <code>gb2312</code> characterset but i m getting instead of ® below is my sample code: <pre><code>new string( test ® .getbytes( gb2312 )); </code></pre> but i m getting test instead of test ®. does any one faced this issue java version- <code>jdk6</code> platform: <code>window 7</code> i m not aware of chinese character encoding so need suggestion. regards mahesh,java | |
| why does java have an int and int integer datatype and can i move data from one to another <blockquote> <strong>possible duplicate:</strong><br> <a href= https://stackoverflow.com/questions/7121581/why-can-integer-and-int-be-used-interchangably >why can integer and int be used interchangably </a> </blockquote> i am trying to understand the difference between these. can i declare something to be an int for example and then compare this with a number that i put in an integer also why does java have the two. why not just combine these can someone help me by showing me a 3-4 line code example of how each is used,java | |
| parsing owl file i have an owl file and i want to extract the classes present in the owl file.can anyone provide a sample program in java how to do this. thanks in advance,java | |
| "is there a better method of creating a list of quarters by counting back from a given quarter i have done this function which creates an array of quarters counting back x quarters including from specified quarter. the last item in the array is the reference quarter. for example with reference quarter <code>2</code> and a count of <code>9</code> this would yield <code>[2 3 4 1 2 3 4 1 2]</code>; my function works but i would like to know if there is a simpler more elegant solution to this. <strong>code below:</strong> <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>/// counts back x from specified quarter | |
| /// parameters: | |
| /// @param countfrom -- the reference quarter to count back from | |
| /// @param count -- count | |
| /// | |
| /// @returns array -- the array of quarters | |
| function getquarterlist(countfrom count) { | |
| var ret = []; | |
| for (var i = 0; i < count; i++){ | |
| var z = countfrom - i; | |
| while (z < 1) { | |
| z = z + 4; | |
| } | |
| ret.splice(0 0 z); | |
| } | |
| return ret; | |
| } | |
| var quarterlist = getquarterlist(2 9); | |
| console.log(quarterlist);</code></pre> | |
| </div> | |
| </div>",javascript | |
| purpose of maxzoom property in google maps maptype interface the google maps api guide detailing the maptypes interface states the following with regard to required properties: <blockquote> maxzoom (required) specifies the maximum zoom level at which to display tiles of this map type. </blockquote> however in the example given by google at: <a href= https://developers.google.com/maps/documentation/javascript/examples/maptype-base rel= nofollow >https://developers.google.com/maps/documentation/javascript/examples/maptype-base</a> the maxzoom property is not even included. if the code is modified to include the maxzoom property (as shown below) the property has no effect -- should it some clarification would be nice ... <pre><code><!doctype html> <html> <head> <title>overlay map types</title> <style> html body #map-canvas { height: 100%; margin: 0px; padding: 0px; } </style> <script src= https://maps.googleapis.com/maps/api/js v=3.exp ></script> <script> /** @constructor */ function coordmaptype(tilesize) { this.tilesize = tilesize; this.maxzoom = 12; // <--- this has no effect } coordmaptype.prototype.gettile = function (coord zoom ownerdocument) { var div = ownerdocument.createelement( div ); div.innerhtml = coord.tostring() + <br>zoom: + zoom.tostring(); div.style.width = this.tilesize.width + px ; div.style.height = this.tilesize.height + px ; div.style.fontsize = 10 ; div.style.borderstyle = solid ; div.style.borderwidth = 1px ; div.style.bordercolor = #aaaaaa ; return div; }; var map; var chicago = new google.maps.latlng(41.850033 -87.6500523); function initialize() { var mapoptions = { zoom: 10 center: chicago }; map = new google.maps.map(document.getelementbyid( map-canvas ) mapoptions); // insert this overlay map type as the first overlay map type at // position 0. note that all overlay map types appear on top of // their parent base map. map.overlaymaptypes.insertat( 0 new coordmaptype(new google.maps.size(256 256))); } google.maps.event.adddomlistener(window load initialize); </script> </head> <body> <div id= map-canvas ></div> </body> </html> </code></pre>,javascript | |
| sending function pointer with arguments with it and then add additional arguments while invoking i have a map which says maps a string to a function like : <pre><code>validator = { first_name : validate_str last_name : validate_str phone : validate_phone } </code></pre> i need to call the corresponding validate function based on the type of value i have in the map that will be fed to me as input for e.g. <pre><code>for name in elements: # validate the value of this name in the input map using the function # input is the map that has the value for each of these fields # elements is a list of all fields used to loop through one input at a time if validator[name]( input[name] ) is false: # throw validation error else: # do something else </code></pre> this works fine unless for this scenario i am not sure if it can be done: the validate_str also checks if a given string is of desired max length. <pre><code>def validate_str(str max-len): # throw error if len(str) > max-len </code></pre> the max-len can differ based on the string so i need to call validate_str for first_name with say 64 characters and last name with 256 characters. i can use a different map to say that this field has this max_len but is it possible for the validator map to have pointer to the validate_str function with the max-len argument preset based on the field something like: <pre><code>validator = { first_name : validate_str(max-len=64) last_name : validate_str(max-len=256) phone : validate_phone } </code></pre> then call it for validation like: <pre><code>if validator[name]( str=input[name] ) is false: # the appropriate value for max-len goes with the function call and just the # str is appended to the argument list while invoking. </code></pre> this makes life easier so that we need not then remember again what fields will have the max-len sent along with it.,python | |
| using arrays in constructor for function in java so i m sure this is an easy question to answer and i m new to java but i want to pass an array into an argument and i m having issues. below i create 3 shapes and i m trying to pass myshapes or that array into areacalculator but i get the error - <pre><code>cannot find symbol symbol : method areacalculator() location: class points areacalculator(); </code></pre> <hr> <pre><code>public static void main(string[] args) { shape[] myshapes = new shape[3]; areacalculator(myshapes); } class areacalculator{ public areacalculator(shape[] shapes){ } } </code></pre>,java | |
| how to delay for loop by 1 second in javascript i am new at javascript. i want to create a for loop that iterate after 1 second. <pre><code>for(sec=60;sec>0; sec--){ document.write(sec); } </code></pre> when i use above code for loop print everything immediately.i want that for loop executes every 1 second. i know it can be done by using <code>setinterval();</code> function but i don t know how to do it exactly. please suggest me best solution how to do.,javascript | |
| give preference to js file function over html file i have two functions of the same name; let s say <code>foo()</code>. one in the html file and one in the js file which is included in the html file. the problem is i want to give preference to the js file function rather than the html file function. is there any way to do that or is there any syntax in javascript like <code>[jsfilename].foo()</code> that may perhaps call the function in the js file,javascript | |
| how to make python response after a certain amount of time i want to make python respond to an answer after 10 seconds. i am doing the python challenge and i have to write a program that asks the user what is your question . the program should response with let me think about that and pause for 10 seconds before responding with i don t want to answer that question right now . the program should then ask the user the same question that the user entered and then look at their response. this is what i have so far: <pre><code>import time timeout=time.time()+60*10 while true: answer=str(input( what is your question )) print( let me think about that ) </code></pre> i don t really know what <code>timeout=time.time()+60*10</code> or <code>while true</code> means but when i searched the internet it seems to be the right one. all i can get python to do now is ask the question and wait for input and ask the question again without waiting. another problem is i put str before input which i think it means you can only give letters not number. but when i use number as an input python still accept it as a string.,python | |
| why use window.onload i have tried finding an answer to this on my own but only found instructions on how to use onload events. i seem to be missing the point. i ve been taught that if i want something to happen when the page loads i should use window.onload like this: <pre><code><script> window.onload = dosomething(); function dosomething() { window.alert( hello ); } </script> </code></pre> but now that i am thinking on my own i wonder what the point of doing that is. because this also produces the same result: <pre><code><script> dosomething(); function dosomething() { window.alert( hello ); } </script> </code></pre> anything i put at the top inside <code><script></code> is going to execute anyway... so what s the point of window.onload,javascript | |
| why i cannot parse +1 to int i am trying to parse <code>+1</code> value to an <code>int</code> value. in my code <code>+1</code> is a <code>string</code> and i am trying to convert it to <code>integer</code> using <code>integer.parseint</code> <pre><code>string num = +1 ; int convertednum = integer.parseint(num); </code></pre> but i am getting error why java is not treating <code>+1</code> as an integer value,java | |
| detecting when nav controller popped to root here is my code: <pre><code>signupcontroller* signupcontroller = [[signupcontroller alloc] initwithnibname:@ signupcontroller bundle:nil]; [window addsubview:[navigationcontroller view]]; [window makekeyandvisible]; self.navigationcontroller.title = @ mynavcontroller ; [self.navigationcontroller pushviewcontroller:signupcontroller animated:yes]; [signupcontroller release]; </code></pre> unfortunately for me calling pushviewcontroller is not synchronous so the next line ([signupcontroller release]) is executed immediately. i need to detect hen the signupcontroller has popped back to the root so i can take the data from the signup controller and do a registration or login. any ideas thanks,iphone | |
| javascript replace single quote with double single quote issue i have used below syntzx to replace single quote with double single quote issue <pre><code>str.replace(/ /g ); </code></pre> but it s replace everytime when it load page. like i have text test s and test s page and test s event then first time it will be test s and test s page and test s event then again test s and test s page and test s event then next loading test s and test s page and test s event can you please help to get just single to double single quote only,javascript | |
| submitting application to apple store - application failed codesign verification i tried to upload my iphone application to the app store but received the following error: <strong>the binary you uploaded was invalid. the icon file must be in .png format.</strong> the icon file is in .png format size 57x57 so assumed it is a bug and tried to upload with application uploader when i got another error: <strong>application failed codesign verification. the signature was invalid or it was not signed with an apple submission certificate.</strong> i followed every single step and it is not working... it is driving me crazy! please advise what should i do!,iphone | |
| how to handle single selection in uicollectionview in iphone <pre><code>- (void)collectionview:(uicollectionview *)collectionview didselectitematindexpath:(nsindexpath *)indexpath { if (shareenabled) { // determine the selected items by using the indexpath nsstring *selectedrecipe = [self.getname objectatindex:indexpath.row]; // add the selected item into the array [getimage addobject:selectedrecipe]; } } </code></pre> how to handle single selection in iphone sdk. when i press on particular cell then it should be show on big view on the same view.,iphone | |
| need more efficient java.util.scanner i have a block of java code i m trying to run it looks like: <pre><code>import java.io.file; import java.util.scanner; import java.util.regex.pattern; file f = new file( input.tsv ); scanner scanner = new scanner(f).usedelimiter(pattern.compile( ^( !.*(\\\\\\n)).*\\n$ )); import java.io.printwriter; writer writer = new printwriter( output.tsv ); while (scanner.hasnext()) writer.println(scanner.next().tostring().replaceall( \\\\\\n )); scanner.close(); writer.close(); </code></pre> this uses a pile of memory and seems very inefficient to basically patch incoming files and remove escaped new line characters. <strong>there has to be a better way !</strong> surely nio or something can steam in and stream out etc. ps. the above was stolen from this thread here: <a href= https://stackoverflow.com/questions/29908236/reading-java-file-with-escape-characters-for-newline >reading java file with escape characters for newline</a>,java | |
| how to read string using scanner class <pre><code>import java.util.scanner; public class solution { public static void main(string[] args) { scanner scan = new scanner(system.in); string s=scan.nextline(); system.out.println( string: + s); } } </code></pre> input: welcome to java tutorials output: welcome to java tutorials,java | |
| return non duplicates numbers in array from method i am trying to remove duplicate numbers using method and return non-duplicate numbers actually i am stuck in method right now. this is my code : <pre><code>import javax.swing.joptionpane; public class duplicateremover{ public static void main(string[] args) { int[] array = new int[5]; for (int i=0; i<array.length;i++) { string s=joptionpane.showinputdialog(null please enter an integer: integers joptionpane.question_message); array[i] = integer.parseint(s); } removeduplicates(array); for (int i=0; i<array.length;i++) { joptionpane.showmessagedialog(null array[i] uniqe integers joptionpane.plain_message); } } public static int[] removeduplicates(int a []) { int []removeddup=new int[a.length]; for (int i = 0; i < a.length; i++) { for (int j = i-1; j < a.length; j++){ if (a[i] == a[i]) { removeddup[i] = j; break; } } </code></pre>,java | |
| problem of subclassing uitableviewcell i have a class a that inherits uitableviewcell (to customize a table cell). it has members say x which is a uilabel. now if i want to set values like a.x.text = some text in the cellforrowatindexpath method i am getting compiler error error for member x in cell which is of non-class type uitableviewcell . could you please let me know how can i fix this problem thanks.,iphone | |
| can one access the arguments class in javascript all other built-ins are attached to the global object: <pre><code>> object.prototype.tostring.call(new date) [object date] > new date instanceof date true > object.prototype.tostring.call(new function) [object function] > new function instanceof function true > object.prototype.tostring.call(new number) [object number] > new number instanceof number true </code></pre> <code>arguments</code> however is not: <pre><code>> args = null; (function() { args = arguments }()); object.prototype.tostring.call(args) [object arguments] > new arguments instanceof arguments referenceerror: arguments is not defined </code></pre> is there any way to access it,javascript | |
| custom tabbar: adjusting the view of the displayed view controller so it is resized to fit above the tabbar i need to create a customtabbar in one of my app. i subclassed uitabbarcontroller by adding a custom view to it. i made the tabbar hidden by setting <pre><code>self.tabbar.hidden = true; </code></pre> i added buttons on the customview and on click of these buttons am handling the switching between the tabs. the issue that am facing is that the height of my custom tabbar is not equal to (more than) the standard tabbar height so i need to clip my viewcontroller s view so that it doesn t hide behind the custom tabbar i tried setting the frame property of viewcontroller s view (see below) in viewdidload and viewdidappear methods but it doesn t work that way. <pre><code>[self.view setframe: cgrectmake(self.view.frame.origin.x self.view.frame.origin.x self.view.frame.size.width 400)] </code></pre> where 400 = 480 - height of my custom tabbar i hope am clear with my question.. thanks in advance,iphone | |
| how to pack iphone code i created an iphone app and tested it on my simulator its working fine now i want to test the same app in another simulator . how can i do the same (i copied the whole folder but its not working ) please help,iphone | |
| change html text input value using javascript how do you change text input value in html using javascript in my case i want to change the price input of an item when the user selects the item and inputs the quantity for example: <pre><code><html> ... <body> quantity : <input type= text id= qty /> <br/> item : <select id= item onclick= checkprice() ><option value= apple >apple</option><option value= orange >orange</option></select> //added onclick <br/> price : <input type= text id= price /> </body> </html> </code></pre> what i would like is when the user input the quantity and item the price would be automatically inputted. i have tried this and it inputted nan (not a number) <pre><code><script type= text/javascript > function checkprice() { var a = document.getelementbyid( item ).value; var b = document.getelementbyid( qty ).value; if(a = apple ){ price = 5 document.getelementbyid( price ).value=b*price }else if(a = orange ){ price = 4 document.getelementbyid( price ).value=b*price } } </script> </code></pre> help please thank you.,javascript | |
| typeerror: nonetype object is not iterable for mit opencourse assignment tried to attempt question on mit opencourseware sc 6.00. the question is on how to find combination of mcnuggets with 6 9 20 packs with total number given. currently my code is: <pre><code>def mac (): totalnumber = int (input( enter total number of mcnuggets )) num20 num6 num9= solve2(totalnumber) def solve2(numtotal): #define a new function to find and print multiple answers solutionfound = false # set up a variable to check if the solution is found for num20 in range (0 numtotal//20 + 1): for num9 in range (0 numtotal//9 +1): num6 = (numtotal-num20*20-num9*9)//6 if num6 > 0: checknum = num20*20+num9*9+num6*6 if checknum == numtotal: print ( the number of 6-pack is num6) print ( the number of 9-pack is num9) print ( the number of 20-pack is num20) solutionfound = true # change the initial variable to true if not solutionfound: print ( there is no solution ) </code></pre> however when running this code it always display: <blockquote> typeerror: nonetype object is not iterable </blockquote>,python | |
| how to handle home key/events in iphone i am developing game using iphone. when home screen button press i want to make game is in pause mode. how to handle home screen button and events (<code>incoming and outgoing events</code>).,iphone | |
| best way to generate unique id in java i want to make java class that generate the unique id for these field when user make his id it will always be unqiue so how to do it in java <pre><code>string dairyid; string userid; string productid; string merchantid; string couponid; string eventid; </code></pre>,java | |
| creating an ios distribution certificate i would like to create an ios distribution certificate to distribute the app to the apple store. when i create it i should put in the user email address field the email address that matches the information that was submitted when you my client have registered as an ios developer. the problem that i don t know what he has entered how i can know the mail that he has entered the same thing for the company name field. i can t contact my clients he is in holidays but i have his username and password of his apple developer account. thanks for your answer,iphone | |
| how to call a method keep getting an error saying return type is void i am trying to call the method of menu but it says the return type is void i want the code in the method of menu to display when the sides is equal to 2 <pre><code>import java.util.scanner; class recorddice { public static void main(string[] args){ int dsides sides; scanner s = new scanner(system.in); system.out.println( how many sides should the dice have ); sides = s.nextint(); if (sides == 2){ return menu(); } } public string menu() { system.out.println( bloody work ); } } </code></pre>,java | |
| is float.negative_infinity.compareto(float.negative_infinity) always 0 i have a piece of code that sorts objects of type <code>float</code>. if a <code>float</code> is null then i assign <code>float.negative_infinity</code> to it and then compare. i wonder if <code>float.negative_infinity.compareto(float.negative_infinity)</code> always equals to 0 i wrote a test that does this comparisons and it returns 0. but i want to make sure that it always zero knowing how tricky it is to compare floats.,java | |
| sqlite in a textview is it possible to display a sqlite values in a textview i have made it in a tableviewcontroller but i am not able to display the same in a textview. appdelegate.biblearray is the array that holds the sqldata.i have the same qustion in another forom .please look at this link for that question [here is the link]: <a href= https://stackoverflow.com/questions/7595844/how-to-show-sqlite-datas-in-a-textview >how to show sqlite datas in a textview </a> please help me to do this. thanks.,iphone | |
| how to open kml file in iphone map applicaion i have one kml file in that there are define coordinates for routing. i want implement below things.when i touch on kml file or kml link then it shoud be open in map applicaion not in browser. i dont know how to implement that things please help me for this query edit: suppose some buddy has sent me kml file in email or kml file link..when i touch on that file or link then it must be open in iphone map applicaion,iphone | |
| javascript execute scripts code in order inserted into dom tree not a duplicate as i have yet to found a satisfying answer on other threads: <ul> <li><a href= https://stackoverflow.com/questions/6074833/load-and-execute-javascript-code-synchronously >load and execute javascript code synchronously</a></li> <li><a href= https://stackoverflow.com/questions/15572940/loading-html-and-script-order-execution >loading html and script order execution</a></li> <li><a href= https://stackoverflow.com/questions/6074833/load-and-execute-javascript-code-synchronously >load and execute javascript code synchronously</a></li> </ul> <hr> looking for <strong>native javascript</strong> answers no jquery no requirejs and so forth please :) <hr> <strong>summary of the entire question:</strong> <h2>i want to asynchronously load scripts but have ordered execution</h2> i am trying to enforce that the code in the inserted script elements execute exactly in the <strong>same order</strong> as they were added to the dom tree. that is <strong>if i insert two script tags</strong> first and second any code in first must fire before the second no matter who finishes loading first. i have tried with the <strong>async</strong> attribute and <strong>defer</strong> attribute when inserting into the head but doesn t seem to obey. i have tried with element.setattribute( defer ) and element.setattribute( async false) and other combinations. the issue i am experiencing currently has to do when including an external script but that is also the only test i have performed where there is latency. the second script which is a local one <strong>is always fired before</strong> the first one even though it is inserted afterwards in the dom tree ( head ). a) <strong>note</strong> that i am still trying to insert both script elements into the dom. ofcourse the above could be achieved by inserting first let it finish and insert the second one but i was hoping there would be another way because this might be slow. my understanding is that requirejs seems to be doing just this so it should be possible. however requirejs might be pulling it off by doing it as described in a). <strong>code if you would like to try directly in firebug just copy and paste:</strong> <pre><code> function loadscript(path callback errorcallback options) { var element = document.createelement( script ); element.setattribute( type text/javascript ); element.setattribute( src path); return loadelement(element callback errorcallback options); } function loadelement(element callback errorcallback options) { element.setattribute( defer ); // element.setattribute( async false ); element.loaded = false; if (element.readystate){ // ie element.onreadystatechange = function(){ if (element.readystate == loaded || element.readystate == complete ){ element.onreadystatechange = null; loadelementonload(element callback); } }; } else { // others element.onload = function() { loadelementonload(element callback); }; } element.onerror = function() { errorcallback && errorcallback(element); }; (document.head || document.getelementsbytagname( head )[0] || document.body).appendchild(element); return element; } function loadelementonload(element callback) { if (element.loaded != true) { element.loaded = true; if ( callback ) callback(element); } } loadscript( http://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js function() { alert(1); }) loadscript( http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.3/cfinstall.min.js function() { alert(2); }) </code></pre> if you try the above code in like firebug most often it will fire 2 and then 1. i want to ensure 1 and then 2 but include both in the head.,javascript | |
| how to split the url the get all the link in webpage i m doing the project <code>hyperlink crawler</code> for inspecting broken link. this is my code. www.utem.edu.my/portal/portal. so that the link give 404 error. i think my code for split url is something wrong. help me please. <pre><code>public class hinterface extends jframe { // declaring variables to be used as components in the interface private jlabel lblurl; private jtextfield inputsearch; private jbutton btnsearch; private jeditorpane outputlinks; public hinterface() { super( hyperlink crawler ); settype(type.popup); setresizable(false); getcontentpane().setbackground(color.black); settitle( web link crawler for inspecting broken link ); flowlayout flowlayout = new flowlayout(); flowlayout.setalignment(flowlayout.left); getcontentpane().setlayout(flowlayout); // creates a label for displaying a text lblurl = new jlabel( \r\nenter url : ); lblurl.setlocation(new point(13 9)); lblurl.setdoublebuffered(true); lblurl.setalignmenty(component.bottom_alignment); lblurl.setalignmentx(component.right_alignment); lblurl.setverticalalignment(swingconstants.top); lblurl.setforeground(color.white); lblurl.setfont(new font( tw cen mt condensed font.bold 20)); getcontentpane().add(lblurl); // creates text field for url input inputsearch = new jtextfield(); inputsearch.settext( http:// ); inputsearch.setpreferredsize(new dimension(400 32)); inputsearch.setfont(new font( sansserif font.bold 17)); getcontentpane().add(inputsearch); // creates a search button btnsearch = new jbutton( search ); btnsearch.setpreferredsize(new dimension(100 32)); btnsearch.setfont(new font( sansserif font.bold 13)); getcontentpane().add(btnsearch); // adds the results text area to a scroll-able pane jscrollpane scrolloutput = new jscrollpane (jscrollpane.vertical_scrollbar_as_needed jscrollpane.horizontal_scrollbar_never); scrolloutput.setbackground(color.gray); scrolloutput.setpreferredsize(new dimension(1100 670)); getcontentpane().add(scrolloutput); outputlinks = new jeditorpane(); outputlinks.addhyperlinklistener(new hyperlinklistener() { public void hyperlinkupdate(hyperlinkevent e) { if (hyperlinkevent.eventtype.activated.equals(e.geteventtype())) { system.out.println(e.geturl()); desktop desktop = desktop.getdesktop(); try { desktop.browse(e.geturl().touri()); } catch (exception ex) { ex.printstacktrace(); } } } }); outputlinks.settext( result ); outputlinks.setcontenttype( text/html ); outputlinks.seteditable(true); scrolloutput.setcolumnheaderview(outputlinks); outputlinks.seteditable(false); // add event handler to search button click handleevents theeventhandler = new handleevents(); inputsearch.addactionlistener(theeventhandler); btnsearch.addactionlistener(theeventhandler); } private class handleevents implements actionlistener { public void actionperformed(actionevent event) { // called when elements are triggered // preparing output variable string string stroutput = no results were found! ; if (event.getsource() == btnsearch || event.getsource() == inputsearch) { if (!inputsearch.gettext().equals( )) stroutput = crawlurl(inputsearch.gettext()); else stroutput = please enter url to crawl it s hyperlinks ; } // prints out the results outputlinks.settext(stroutput); } public string pullurl(string strurl) { string resutls = ; urlconnection connection = null; try { connection = new url(strurl).openconnection(); @suppresswarnings( resource ) scanner scanner = new scanner(connection.getinputstream()); scanner.usedelimiter( \\z ); if(scanner.hasnext()) resutls = scanner.next(); } catch ( exception ex ) { ex.printstacktrace(); } return resutls; } public string crawlurl(string strurl) { string results = ; // for return string protocol = http:// ; // assigns the input to the inurl variable and checks to add http string inurl = strurl; if (!inurl.tolowercase().contains( http:// .tolowercase()) && !inurl.tolowercase().contains( https:// .tolowercase())) { inurl = protocol + inurl; } // pulls url contents from the web string contecturl = pullurl(inurl); if (contecturl == ) { // if it fails then try with https protocol = https:// ; inurl = protocol + inurl.split( http:// )[1]; contecturl = pullurl(inurl); } // declares some variables to be used inside loop string atagattr = ; string href = ; string msg = ; // finds a tag and stores its href value into output var string bodytag = contecturl.split( <body )[1]; // find 1st <body> string[] atags = bodytag.split( > ); // splits on every tag //to show link different from one another int index = 0; for (string s: atags) { // process only if it is a tag and contains href if (s.tolowercase().contains( <a ) && s.tolowercase().contains( href )) { atagattr = s.split( href )[1]; // split on href // split on space if it contains it if (atagattr.tolowercase().contains( \\s )) atagattr = atagattr.split( \\s )[2]; // splits on the link and deals with or quotes href = atagattr.split( ((atagattr.tolowercase().contains( \ )) \ : \ ) )[1]; if (!results.tolowercase().contains(href)) //results += ~~~ + href + \r\n ; /* * last touches to url before display * adds http(s):// if not exist * adds base url if not exist */ if(results.tolowercase().indexof( about ) != -1) { //contains about } if (!href.tolowercase().contains( http:// ) && !href.tolowercase().contains( https:// )) { // http:// + baseurl + href if (!href.tolowercase().contains(inurl.split( :// )[1])) href = protocol + inurl.split( :// )[1] + href; else href = protocol + href; } system.out.println(href);//debug try { msg = urlheker(href); } catch (exception e) { // todo auto-generated catch block e.printstacktrace(); } // store the link in output var if (!results.tolowercase().contains(href)){ results += <a href=\ ; results += href; results += \ > ; results += link + (index + 1)+ : + href ; results += </a> ; results += : ; results += msg; results += <br> ; index++; } } } system.out.println(results); return results; } } public string urlheker(string href) throws exception { string msg = ; int code = 0; url url = new url(href); urlconnection connection = url.openconnection(); if(connection instanceof httpurlconnection) { httpurlconnection httpconn=(httpurlconnection)connection; code = httpconn.getresponsecode(); msg = httpconn.getresponsemessage(); if(code == httpurlconnection.http_ok ) system.out.println( return normal response : +msg); else system.out.println(code); } msg = msg+ [ + integer.tostring(code) + ] ; return msg; } } </code></pre>,java | |
| randomly change a letter in every 60 seconds i am trying to find a method to have a single letter change every 5 seconds. i have the random part done but cannot work out how to change it every 5 seconds. here is what i have put together so far i am hoping someone can tell me where i am going wrong. <pre><code><!doctype html> <html> <head> <script type= text/javascript > function randomstring(length) { var text = ; var possible = abcdefghijklmnopqrstuvwxyz ; for( var i=0; i < length; i++ ) text += possible.charat(math.floor(math.random() * possible.length)); return text; } function changingrandomstring(length) { setinterval(function(){ return randomstring(length); } 5000); } </script> </head> <body> <div id= wrap > <p>random changing letter : <script type= text/javascript >changingrandomstring(1);</script></p> <p>random static letter : <script type= text/javascript >document.write(randomstring(1));</script></p> </div> </body> </html> </code></pre> in the ideal world i am looking to also make the changing letter fade in and out as well for those who like a challenge :-) thanks in advance for any help.,javascript | |
| getting the last index better to use len(list)-1 or use own variable in my code below would it be better to use the i = len(scheduled_meetings)-1 or the i=0/i+=1 method i know the cost of len() is o(1) and it s probably more clear whats going on this way but it gets calculated for every m in sorted_meetings. i=0 is set once then only incremented if something is appended to the list. will there even be a difference both methods work against my test cases just wanted to get some feedback on which would be better. <pre><code>import operator def answer(meetings): # sort by earliest end time sorted_meetings = sorted(meetings key=operator.itemgetter(1)) # always select the earilest end time scheduled_meetings = [sorted_meetings[0]] i = 0 #method b for m in sorted_meetings: i = len(scheduled_meetings) - 1 #method a if m[0] >= scheduled_meetings[i][1] or m[1] <= scheduled_meetings[i][0]: scheduled_meetings.append(m) i += 1 #method b return len(scheduled_meetings) </code></pre>,python | |
| how can we set a large uiimage on small uiimageview i am using imagview with size of 320x320 to display large image (350 x 783). while placing the large image into the imageview the image looks squeezed compressed something not like the quality one. my question is how can i make the large image into small with as good quality as the original image,iphone | |
| array join() method without a separator <pre><code>var arr= [ g o o d ]; var arr2 = arr.join(); </code></pre> arr2 will be g o o d . i would like to get good . i know there are a million other ways to achieve this but was curious if there was a way with join. thanks,javascript | |
| using the .value method to get user input from the dom (basic javascript timer) i m making a basic javascript timer. at present the number of seconds the timer runs for is set using a variable. i d like to have this variable to be set by the user but i m struggling to make it work. here s what i ve tried: html: <pre><code><input type= text placeholder= how many seconds id= set-timer > </code></pre> this gives an input box. js: <pre><code>var originalcount = document.getelementbyid( set-timer ).value; </code></pre> but this doesn t seem to work. am i using .value incorrectly here s my jsfiddle to give you an idea of what i m trying to achieve: <a href= https://jsfiddle.net/k0xxzkr2/1/ rel= nofollow noreferrer >https://jsfiddle.net/k0xxzkr2/1/</a> hopefully i m clear enough in my objectives. i m still wrapping my head around javascript. thanks in advance.,javascript | |
| js: how to redirect an user to another page when user refresh the page the context is a game. when user refreshes his page (f5 or ctrl+r) i want the page to be redirect to gameover.php page. can this be done in pure js,javascript | |
| navigation controller button left in my application i have some leftbarbutton of the navigation bar set to retour and some others set to back i would like to set all my buttons to retour how to do this please i have spend many hours to dos this. thanks,iphone | |
| is there a good reason to have short file names for javascripts eg. why is the google analytics script ga.js instead of google-analytics.js is it convention optimisation or over optimisation,javascript | |
| storing a printed line into a string i d like to know if there is any way to store a series of texts which are printed using system.out.print into a specific string so that it can be used to recall the line in the future. for example : <pre><code>string oldline=null; int x = 4; for (int i=0; i<10; i++) { int result = x+i; system.out.print(result+ \t ); } </code></pre> the result would be then something like: <pre><code>4 5 6 7 9 10 .... </code></pre> now i d like to know if i can store this line into: <pre><code>string oldline; </code></pre> so whenever i print oldline i can print the same line as : <pre><code>4 5 6 7 9 10 .... </code></pre>,java | |
| contentview tag question i created contentviews and assigned tags. when i click row in simulator i cannot get right tag value. tag value is always 0. what is wrong with my code <pre><code>- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { static nsstring *cellidentifier = @ cell ; uitableviewcell *cell = (uitableviewcell *)[tableview dequeuereusablecellwithidentifier:cellidentifier]; uiimageview *imgview *imgview1; if(cell == nil) { cell = [[[uitableviewcell alloc] initwithframe:cgrectzero reuseidentifier:cellidentifier] autorelease]; cell.textlabel.text = @ test ; imgview = [[uiimageview alloc] initwithframe:cgrectmake(100 0 20 62)]; [imgview setimage:[uiimage imagenamed:@ 1.png ]]; imgview.tag = 10; [cell.contentview addsubview:imgview]; [imgview release]; imgview1 = [[uiimageview alloc] initwithframe:cgrectmake(200 0 20 62)]; [imgview1 setimage:[uiimage imagenamed:@ 2.png ]]; imgview1.tag = 20; [cell.contentview addsubview:imgview1]; [imgview1 release]; } else { imgview = (id)[cell.contentview viewwithtag:10]; imgview1 = (id)[cell.contentview viewwithtag:20]; } return cell; } - (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath { uitableviewcell *cell = [tableview cellforrowatindexpath:indexpath]; if (cell.contentview.tag == 10) // tag is always 0. what s wrong nslog(@ 10 ); else if (cell.contentview.tag == 20) nslog(@ 20 ); } </code></pre>,iphone | |
| while first index is an array <em>i can tell i m falling through my while loop from frame 3 to 4.</em> <strong>am i not checking the condition in my while loop correctly </strong> <pre><code>function steamrollarray(arr) { var r2 = []; while (arr[0].isarray) { console.log(arr[0]); r2.push(arr[0]); return r2; } return r2; } steamrollarray([[[ a ]] [[ b ]]]); // should return [ a b ]. steamrollarray([1 [2] [3 [[4]]]]); // should return [1 2 3 4]. steamrollarray([1 [] [3 [[4]]]]); // should return [1 3 4]. steamrollarray([1 {} [3 [[4]]]]); // should return [1 {} 3 4]. </code></pre> <a href= http://www.pythontutor.com/javascript.html#mode=display rel= nofollow noreferrer >step 3 to 4</a>,javascript | |
| does t.length >>> 0 anything in the mdn js array polyfil in the mdn array polyfils it has the following line. <pre><code>var len = t.length >>> 0; </code></pre> does binary shift right 0 really actualy do anything or can i take this out,javascript | |
| python google search explicit phrase i am trying to define a google search with the ajax interface using the very good function described here (a martelli) <a href= https://stackoverflow.com/questions/1657570/google-search-from-a-python-app >google search from a python app</a> <pre><code>........ query = urllib.urlencode({ q : searchfor}) .... </code></pre> if i define the variable <code>searchfor = big car </code> the query generated is big+car. however i want to generate the query big car (those two words ocurring together). q1) that is i would like to define an explicit phrase in my query (in google i would enter the phrase within double quotes). q2) how can i define a query where i wxclude a certain term. (in google you enter the - sign).,python | |
| how to disable the optionparser default help view i am using the optionparser from optparse module to parse my command that i get using the raw_input(). when i give a -h it displays the help screen and exits my application. i dont want it to display the help screen or exit the application. how can this be accomplished thanx in advance.,python | |
| javascript inheritance - ...is not defined . namespace issue i have a class called <code>moduleselector</code> that grabs a list of modules from a server and displays them as clickable toggle buttons. i m trying to create a class called <code>module</code> that extends the <code>togglebutton</code> class and is only visible to the <code>moduleselector</code>. the problem i m having is that the line: <code>module.prototype = new togglebutton();</code> is giving an error: <code>togglebutton is not defined</code>. i don t understand why it cannot be found because i can create new instances of togglebutton inside the <code>module</code> function for example. <b>moduleselector.js</b> <pre><code>(function() { function module(id name){ this.moduleid = id; this.modulename = name; this.topics = []; this.addtopic = function(topic){ this.topics.push(topic); } } module.prototype = new togglebutton(); module.prototype.constructor = module; var moduleselector = function (id) { this.initialize(id); }; var p = moduleselector.prototype = new createjs.container(); p.container_initialize = p.initialize; p.initialize = function (id) { this.container_initialize(); //..... }; window.moduleselector = moduleselector; }()); </code></pre> <b>togglebutton.js</b> <pre><code>(function() { var togglebutton = function(text) { this.initialize(text); //....code }; var p = togglebutton.prototype = new createjs.container(); p.container_initialize = p.initialize; p.initialize = function(text) { this.container_initialize(); }; window.togglebutton = togglebutton; }()); </code></pre>,javascript | |
| java generic collection have the same erasure error i want to make the genericcollection generic obviously. i get this error: <pre><code>name clash: add(t) in gcollection and add(java.lang.object) in collection have the same erasure yet neither overrides the other </code></pre> collection <pre><code>public class collection { public object get(int i){ return null; } public void add(object o){ } } </code></pre> genericcollection <pre><code>public class genericcollection<t> extends collection { public t get(int i){ return (t) super.get(i); } public void add(t o){ super.add(o); } } </code></pre> maybe got some ideas,java | |
| how to get the values in this object i have been trying to get the values from the below object without any luck. i know there are many answers out there but i am a visual person and they are not working for my layout. also how can i address the objects to change the values of ringalarm <pre><code>var strringalarm = { sq1 :{ringalarm: off alarmname: chime1 } sq2 :{ringalarm: no alarmname: chime2 } sq3 :{ringalarm: no alarmname: chime3 } sq4 :{ringalarm: no alarmname: chime4 } sq5 :{ringalarm: no alarmname: chime5 } sq6 :{ringalarm: no alarmname: chime6 } sq7 :{ringalarm: no alarmname: chime7 } sq8 :{ringalarm: no alarmname: chime8 } sq9 :{ringalarm: no alarmname: chime9 } sq10:{ringalarm: no alarmname: chime10 } sq11:{ringalarm: no alarmname: chime11 } sq12:{ringalarm: no alarmname: chime11 } }; object.getownpropertynames(strringalarm).foreach(function(val idx array) { console.log(val + -> + val.ringalarm); } ) </code></pre>,javascript | |
| location detail is not post on the server once network is lost and again connected in my application i am posting user s current location detail on the server at specified time interval. the issue is when network is disconnected and after some time when again reconnect then application stop posting location detail on the server. this is working perfect when i run the application from the xcode to device. but doesn t work when i directly run the application from the device. thanks reena,iphone | |
| javascript does not execute as expected - facebook javascript sdk that is the body of a mvc 3 view that i have. it s about a facebook app that i want to create. the expected result is to have a pop-up window showing the name of the user entered the app. when i run the app nothing happens so no code is executed. so what is the mistake on this <pre><code><body> <div id= fb-root style= display: none ></div> <script> window.fbasyncinit = function () { fb.init({ appid: my app id // application id provided by facebook status: true // check login status cookie: true // enable cookies to allow the server access the session xfbml: true // parse xfbml }); // other initialization code here fb.api( /me function (response) { alert( your name is + response.name); }); }; // load facebook javascript sdk asynchronously (function (d) { var js id = facebook-jssdk ref = d.getelementbytagname( script )[0]; if (d.getelementbyid(id)) { return; } js = d.createelement( script ); js.id = id; js.async = true; js.src = //connect.facebook.net/en_us/all.js ; ref.parentnode.insertbefore(js ref); }(document)); </script> @renderbody() </code></pre>,javascript | |
| map function: anonymous function vs function expression why does passing an anonymous function into the <code>map</code> function work but attempting to pass a function expression throws an error <pre><code>arr = [2 4 6 8]; items = arr.map(function(x) { return math.pow(x 2); }); console.log(items); // returns [4 16 36 64] squareit = function(x) { return math.pow(x 2); } otheritems = arr.map(squareit(x)); console.log(otheritems); // returns uncaught referenceerror: x is not defined </code></pre>,javascript | |
| javascript: how to copy reference properly i have array and two variables. these variables are meant to hold references to array items in fact to select new object and hold previously selected. this code makes selectedobject and prevselectedobject to be the same :( <pre><code>if(newselection) { if(this.prevselectedobject != newselection) { this.prevselectedobject = this.selectedobject; } this.selectedobject = newselection; } else { this.prevselectedobject = this.selectedobject; this.selectedobject = null; } </code></pre> guess this.prevselectedobject = this.selectedobject; actually puts in prevselectedobject variable reference to selectedobject. but i want to copy reference that is in selectedobject to prevselectedobject. there are dirty hacks for copy-by-value if value is string or int but what to do with references,javascript | |
| js: dynamically create subproperties of non-existing property i want something like this: <pre><code>var myobj = {}; myobj[ a ][ b ].push({ c : d }); </code></pre> i want myobj to become: <code>{ a :{ b :[{ c : d }]}}</code> but i get an error <blockquote> cannot set property b of undefined </blockquote> yes i know i can create it step by step like that: <pre><code>var myobj={}; myobj[ a ]={}; myobj[ a ][ b ]=[]; myobj[ a ][ b ].push({ c : d }); </code></pre> but what if myobj already has some structure and i don t want to destroy it. e.g: <pre><code>var myobj={ a :{ e : f }}; </code></pre> if i write <code>myobj[ a ]={};</code> i ll lose data.<br> sure i can write <pre><code>if(myobj[ a ]==null){ myobj[ a ]={} } </code></pre> but it s too bulky! that would be great if i could just write smth like <code>myobj[ a ][ b ].push({ c : d });</code> without checking for null on every step.<br> any suggestions how to do this may be there is a way to override js native object or smth like that <br> thank you in advance!,javascript | |
| view is not gone sometimes there is a very hard issue i m trying to pursue. in the <code>viewdidappear:</code> i have the following code: <pre><code>if(datasourcecount > 0) { [scrollview sethidden:no]; uiview *ndview = [self.view viewwithtag:204]; [ndview removefromsuperview]; self.nodataview = nil; infobtn.hidden = no; } else { [scrollview sethidden:yes]; [[nsbundle mainbundle] loadnibnamed:@ nodataview owner:self options:nil]; self.nodataview.tag = 204; [self.view addsubview:self.nodataview]; infobtn.hidden = yes; } [super viewdidappear:animated]; </code></pre> the problem occurs on <code>if true</code> case very rarely and as a result on the device i can see the view that has been removed from superview - <code>ndview</code>. i was thinking that viewwithtag may return nil sometimes but this is not the case as i found out from debug. also tried to move <code>self.nodataview = nil</code> to <code>else</code> and found the issue again. is there any obvious or non-obvious mistake that i m doing here which i m not supposed the idea of this code snippet is to temporarily show some other view while data is not available.,iphone | |
| what is a programmers reference book i am going to take a java application class and i have to purchase a java programming book. when i went to <a href= http://en.wikipedia.org/wiki/amazon.com rel= nofollow >amazon</a> it showed that some of the people who purchased the book also bought a java reference book. what is the difference between the java programming book and a java reference book,java | |
| how to develop iphone applications on windows platform(xp vista) hi folks can any one please let me know how to develop iphone applications on windows platform(xp vista).if so i have windows system with xp os how to install the software what is the software name and please let me know the blogs and free downloads for trail versions thank in advance jagadeesh,iphone | |
| how to download an image from ftp using ftpclient i m using this code and try to download an png pic from server .this is code <pre><code>import java.awt.image.bufferedimage; import java.io.fileoutputstream; import java.io.ioexception; import java.io.inputstream; import java.io.outputstream; import javax.imageio.imageio; import org.apache.commons.net.ftp.ftpclient; public class nettest { public static void main(string[] args){ ftpclient client = new ftpclient( ); outputstream outstream; try { client.connect( server ); client.login( noman@mindzone.co.in pass ); string remotefile = pages/page0001.png ; outstream = new fileoutputstream( c:\\asd.png ); client.retrievefile(remotefile outstream); } catch(ioexception ioe) { ioe.printstacktrace(); system.out.println( error communicating with ftp server. ); } finally { try { client.disconnect( ); } catch (ioexception e) { system.out.println( problem disconnecting from ftp server ); } } } } </code></pre> this code gives me no error but when i open the image it shows me invalid image .,java | |
| why can t this be done <pre><code>class a { a(int x) { system.out.println( constructor a ); } } class b extends a { b() { system.out.println( constructor b ); } } public class c { public static void main(string args[]) { b b = new b(); } } </code></pre> it says constructor from class a can t be applied for given types.,java | |
| iphone - volume/mute buttons what class is referenced in the volume/mute button popup sorry for the awful question but i can t seem to find it anywhere.,iphone | |
| not able to install a python package from my old python version i am using old version of python (2.6) <pre><code>$ python --version python 2.6.6 </code></pre> i want to install module fabric installing from behind the proxy <pre><code>$ sudo pip install fabric==1.13.1 --proxy <proxy> </code></pre> getting error like <pre><code>downloading fabric-1.13.1-py2-none-any.whl (92kb) 100% |████████████████████████████████| 102kb 141kb/s collecting paramiko<3.0 >=1.10 (from fabric==1.13.1) using cached paramiko-2.4.0-py2.py3-none-any.whl collecting pyasn1>=0.1.7 (from paramiko<3.0 >=1.10->fabric==1.13.1) using cached pyasn1-0.4.2-py2.py3-none-any.whl collecting bcrypt>=3.1.3 (from paramiko<3.0 >=1.10->fabric==1.13.1) using cached bcrypt-3.1.4-cp26-cp26mu-manylinux1_x86_64.whl collecting cryptography>=1.5 (from paramiko<3.0 >=1.10->fabric==1.13.1) using cached cryptography-2.1.4.tar.gz collecting pynacl>=1.0.1 (from paramiko<3.0 >=1.10->fabric==1.13.1) using cached pynacl-1.2.1.tar.gz complete output from command python setup.py egg_info: download error on https://pypi.python.org/simple/cffi/: [errno 101] network is unreachable -- some packages may not be found! couldn t find index page for cffi (maybe misspelled ) download error on https://pypi.python.org/simple/: [errno 101] network is unreachable -- some packages may not be found! no local packages or working download links found for cffi>=1.4.1 </code></pre> it was working previously (1 year back) i can not upgrade python due to legacy issue. looks like it is deprecated. need your help to resolve this.,python | |
| how to remove white space characters from string in python while declaring <code>argstring</code> variable i use white spaces to format a code so it is easy to read later. so instead of typing: <pre><code>argstring= line1 line2 line3 </code></pre> i am using this instead: <pre><code>argstring= line1 line2 line3 </code></pre> the problem i have encounter is that later when <code>argstring</code> is written to output text file the extra white spaces used to format code are still preserved and written to the output text file. so the resulted output text file is written in a form: <pre><code>....line1 ....line2 ....line3 </code></pre> (where each period . represents white space character. how to remove the extra white spaces used purely for the code readability when a content of the string variable <code>argstring</code> is written to the text file <pre><code>import tempfile argstring= line1 line2 line3 writefile=tempfile.mkdtemp()+ /script.txt _file=open(writefile wb ) _file.write(argstring) _file.close() </code></pre>,python | |
| problem with subviews of uitableviewcell i added a subviews to uitableviewcells its working fine but when i scroll up or down subviews are adding multiple times. i donno where i am wrong. here is my code: <pre><code>- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { static nsstring *cellidentifier = @ mainpagecellview ; mainpagetablecellview *cell = (mainpagetablecellview *)[tableview dequeuereusablecellwithidentifier:cellidentifier]; if (cell == nil) { [[nsbundle mainbundle] loadnibnamed:@ mainpagetablecellview owner:self options:nil]; cell = mainpagetablecell; } [cell setnametext:[namesarray objectatindex:indexpath.row]]; [cell setpositiontext:[positionarray objectatindex:indexpath.row]]; [cell setcompanynametext:[companynamearray objectatindex:indexpath.row]]; [cell setdistancetext:[distarray objectatindex:indexpath.row]]; [cell setimageviewimage:[imagesarray objectatindex:indexpath.row]]; uiimage *halo = [uiimage imagenamed:@ h1.png ]; uiimageview *halov = [[uiimageview alloc] initwithimage:halo]; if(indexpath.row == 0) [cell addsubview: halov]; else if(indexpath.row ==2) [cell addsubview: halov]; else if(indexpath.row ==3) [cell addsubview: halov]; return cell; } </code></pre>,iphone | |
| javascript generate a string contains 1m random number browser crash <pre><code>var text = ; var possible = 0123456789 ; for( var i=0; i < 10000000; i++ ) text += possible.charat(math.floor(math.random() * possible.length)); </code></pre> each time i run this code the browser start to crash.how could i solve this because i need to use such long string to sort phone number(bitmap sorting). the forloop may works but it took a long time. so i think my problem is there any other way to make this faster than simple string concat.,javascript | |
| subviews not loaded from nib with initwithnibname i ve got the code below in my rootviewcontroller (which is a uitableviewcontroller). this code is executed when the button in the navigation bar is clicked and then (in the simulator) the next view is shown. however the subviews (uitextlabels uibuttons) that are drawn in in the view managed by the tripdetailscontroller are not displayed. also in the navigation bar in the top of the screen the back button to the original view is not shown but when i click on the left side of the navigation bar it does transition back to the original view. <ul> <li>tripdetailscontroller.view is linked to the tripdetailsview (uiview) in interface builder</li> <li>tdcontroller does have a value so it looks as if it is loaded</li> <li>tripdetailscontroller is in a separate nib file</li> <li>using iphone sdk 2.2.1 (so not 3.0 yet)</li> </ul> code: <pre><code> tripdetailscontroller *tdcontroller = [[tripdetailscontroller alloc] initwithnibname:@ tripdetailscontroller bundle:nil]; [self.navigationcontroller pushviewcontroller:tdcontroller animated:yes]; [tdcontroller release]; </code></pre> in the tripdetailscontroller class i added the viewdidload method like this: code: <pre><code>- (void)viewdidload { [super viewdidload]; self.navigationitem.title = @ reis details ; nslog(@ subviews: %@ self.view.subviews); uilabel *l = [self.view.subviews objectatindex:0]; nslog(@ subview 0 bounds: %@ l.bounds); } </code></pre> the log messages below do show that the subviews are there but also that the bounds are not set: code: <pre><code>6/18/09 jun 18 2009 10:06:00 pm reisadvies[11226] subviews: ( <uilabel: 0x56f250> <uilabel: 0x56f5a0> <uilabel: 0x56f6b0> <uilabel: 0x56f780> ) 6/18/09 jun 18 2009 10:06:00 pm reisadvies[11226] subview 0 bounds: (null) </code></pre> in interface builder the label size tab does show values for x/y/w/h. feels like i have to trigger it to do some layout activities but call layoutsubviews in the viewdidload() does not help. any ideas what might be the problem here,iphone | |
| array list sorting in java an array list contains some data that needs to be sorted. <pre><code>data: a1 a5 b1 a7 b3 </code></pre> after sort i need to be shown like below <pre><code>a1 a5 a7 b1 b3 </code></pre> please help on this.,java | |
| removing more than two consecutive chars i want to remove any <code>char</code> which repeats more than two times consecutive. <pre><code>import re re.sub(r ([a-z])\1+ r \1 ffffffbbbbbbbqqq ) </code></pre> it s returning me <code>fbq</code> while i need <code>ffbbqq</code>. the goal is pre-process the string before doing a spell checking. what am i doing wrong,python | |
| database: typeerror: cannot concatenate str and list objects <pre><code>`traceback (most recent call last): file fmcrawler_sql.py line 317 in <module> crawl(initfighter=fighter k=4) file fmcrawler_sql.py line 114 in crawl write_page_to_database(initfighterurl cur) file fmcrawler_sql.py line 292 in write_page_to_database write_fights_to_database(fights cur) file fmcrawler_sql.py line 211 in write_fights_to_database fightid = hash(bothfighters+fight[ event ]) typeerror: cannot concatenate str and list objects ` </code></pre> what is wrong with these lines,python | |
| javascript check for max/min/average number from a record set <pre><code>function lab09unknownloopcountpart2() { //constants var one_hundred = 100; var zero = 0; //variables var employeehourlywage; var hourlymaximum = zero; var hourlyminimum = zero; var totalhourlywage = zero; var records; var counter = zero; var average; records = openemployeepayrollrecords(); while (records.readnextrecord()) { employeehourlywage = records.getemployeehourlywage(); totalhourlywage += employeehourlywage; counter++; average = totalhourlywage / counter; if (employeehourlywage < one_hundred) { hourlymaximum = employeehourlywage; } if (employeehourlywage < one_hundred) { hourlyminimum = employeehourlywage; } } document.write( average hourly wage: + average + <br /> ); document.write( maximum hourly wage: + hourlymaximum + <br /> ); document.write( minimum hourly wage: + hourlyminimum + <br /> ); </code></pre> } the record set is simply numbers from 15 - 30. i have to sort through them and find the maximum minimum and average. i know that my two if statements are incorrect and i m wondering how to check this <strong>without</strong> using math.min and math.max. thanks.,javascript | |
| python module not found because import statement is in other file than the one being executed in the following structure: <pre><code>src: model: - boardmodel.py - tests.py exceptions: - exceptions.py - visual.py </code></pre> i m running <code>visual.py</code> from the terminal. in my <strong>boardmodel.py</strong> i have the following import: <pre><code>from exceptions.exceptions import zeroerror overlaperror argumenterror proximityerror </code></pre> this line causes an error when running <code>visual.py</code>: <pre><code>traceback (most recent call last): file visual.py line 3 in <module> from model.boardmodel import board file /users/sahandzarrinkoub/documents/programming/pythonfun/bouncingballs/balls/src/model/boardmodel.py line 5 in <module> from exceptions.exceptions import zeroerror overlaperror argumenterror proximityerror modulenotfounderror: no module named exceptions </code></pre> what is the correct way to solve this problem should i change the import statement inside <code>boardmodel.py</code> to <code>from model.exceptions.exceptions import zeroerror....</code> that doesn t feel like a sustainable solution because what if i want to use <code>boardmodel.py</code> in another context let me her your thoughts. edit: i changed the structure to: <pre><code>src: model: - __init__.py - boardmodel.py - tests.py exceptions: - __init__.py - exceptions.py - visual.py </code></pre> but still i get the same error.,python | |
| twitter+linkedin issue in iphone i have an application with facebook twitter and linkedin integrating to it.but when i am using twitter and linkedin it is causing some problem.i found some results in stack saying remove the library files of linkedin sdk and add the source files of it with oauth files from twiiter sdk then it works ok for linkedin then i integrate all twitter code then project run ok without error but for twitter login interface it shows page not found but then notice that i have given the same key and secret to both linkedin and twitter after changing them it solved but can u please suggest how to do this.it is so confusing.thats why i am going for a clear picture.any help will be greatly appreciated,iphone | |
| error while counting number of character lines and words in java i have written the following code to count the number of character excluding white spaces count number of words count number of lines.but my code is not showing proper output. <pre><code>import java.io.*; class filecount { public static void main(string args[]) throws exception { fileinputstream file=new fileinputstream( sample.txt ); bufferedreader br=new bufferedreader(new inputstreamreader(file)); int i; int countw=0 countl=0 countc=0; do { i=br.read(); if((char)i==( )) countw++; else if((char)i==( \n )) countl++; else countc++; }while(i!=-1); system.out.println( number of words: +countw); system.out.println( number of lines: +countl); system.out.println( number of characters: +countc); } } </code></pre> my file sample.txt has <pre><code>hi my name is john hey whts up </code></pre> and my out put is <pre><code>number of words:6 number of lines:2 number of characters:26 </code></pre>,java | |
| how to open maps app from my code to show directions hi.. i have to show directions between two coordinates. i d like to open maps app passing the start and end coordinates from my code. i don t want to open it in the google maps which opens in browser(safari). i tried that method. that was working perfect. <pre><code>nsstring* urlstr = [nsstring stringwithformat: @ http://maps.google.com/maps saddr=%f %f&daddr=%f %f s_lat s_long d_lat d_long]; [[uiapplication sharedapplication] openurl: [nsurl urlwithstring:urlstr]]; </code></pre> but i want to open iphone maps app. how can i do this is this possible any help will be appreciated.,iphone | |
| unable to parse relevantdate error while parsing pkpass in ios not able to create pass <pre><code>error domain=pkpasskiterrordomain code=1 the pass cannot be read because it isn t valid. userinfo=0x1405a480 {nsunderlyingerror=0x14059950 unable to parse relevantdate 2013-12-05t06:00:00.000z as a date. we expect dates in w3c date time stamp format either complete date plus hours and minutes or complete date plus hours minutes and seconds . for example 1980-05-07t10:30-05:00. nslocalizeddescription=the pass cannot be read because it isn t valid.} </code></pre> can anyone help me on this,iphone | |
| detecting if string iterator is a blank space i m attempting to write a small block of code that detects the most frequently occurring character. however i ve become stuck on not being able to detect if a value is blank space. below is the code i have: <pre><code>text = hello world! ## user lower() because case does not matter setlist = list(set(textlist.lower())) for s in setlist: if s.isalpha() and s != : ## do something else: setlist.remove(s) </code></pre> the problem is that set list ends with the following values: <pre><code>[ e d h l o r w ] </code></pre> i ve tried multiple ways of detecting the blank space with no luck including using strip() on the original string value. isspace() will not work because it looks for at least one character.,python | |
| python connect 4 game <pre><code>columns = 5 rows = 4 def empty_board(): board_rows =[ | \t\t | ] * rows board_columns = [ ___ ] * columns for i in range (rows): print(board_rows[i]) print( + end= ) for i in range(columns): print(board_columns[i] end= ) print print( + ) for i in range(columns): column_number = i+1 print( + str(column_number) end = ) def column_choice(): player = 1 if player % 2 != 0 : column = input( player 1 please choose a column to make your next move ) else: column = input( player 2 please choose a column to make your next move ) player += 1 return column def new_board(column): moves = 0 column = int(column) - 1 if moves % 2 == 0: key = x else: key = o board_rows = [ | \t\t | ] * rows board_columns = [ ___ ] * columns for i in range (rows): print(board_rows[i]) board_rows.pop(column) board_rows = board_rows.insert(column key) print(board_rows) print( + end= ) for i in range(columns): print(board_columns[i] end= ) print( + ) for i in range(columns): column_number = i+1 print( + str(column_number) end = ) if __name__ == __main__ : print() print( welcome to connect 4 ) print() new_board(column_choice()) </code></pre> i have to create a connect 4 board with the given column and row dimensions (for now). i currently have the board created but i can t quite figure out how to get the <code>x</code> or <code>o</code> to go in the correct spot. for instance right now when i run the program the <code>x</code> will go in the whole column. if you could offer any help i would appreciate it!,python | |
| internationalization in iphone application my application run vary well but now when uiswitch button is on at that time i have to convet whole application in spanish when off then convert in to english how it possible plz give any replay for that.,iphone | |
| aggregating similar objects using comparator without consistency with equals() i have a set of immutable objects that implement equals() that strictly compare the member variables they hold. two objects are identical if the member variables are equal. hashcodes() are consitent with this. i want to be able to aggregate these objects according to looser definitions of similarity. i was thinking of using comparator for this so that i could define a bunch of ad hoc similarity rules but the javadoc states that comparator should be consistent with equals. is is ok to break the comparator contract with equals() to achieve this or is there some better method/pattern/strategy for aggregating objects according to some similarity rules examples may include: <ul> <li>locations: equals() returns true if latlng and place name exactly equal but comparator returns 0 if latlng within say 25m/50m/100m regardless of place name etc or if only place names are equal regardless of latlng.</li> <li>dates: equals() returns true if long millis are equal but comparator returns 0 if on same day/month/year etc..</li> <li>strings: equals return true if equalsignorecase is true but comparator may removes spaces/special characters to reduce to some canonical form then run equals etc.</li> </ul> many thanks in advance riz,java | |
| how do i eliminate conditional from code how do i eliminate the ternary operator from the code below i m looking for something using only integer operators (shifts additions etc). <pre><code>a = (a < 0) (-a * 2) - 1 : (a * 2) </code></pre>,java | |
| rounding off number shows different result on positive and negative numbers i ve rounding the number into 2 decimal places: <pre><code>function round(num decimals) { var factor = math.pow(10 decimals); return math.round(num * factor) / factor; } round(-5.255 2); -5.25 function round(num decimals) { var factor = math.pow(10 decimals); return math.round(num * factor) / factor; } round(5.255 2); 5.26 </code></pre> but i ve observed that it is giving different result when it is positive or negative. why is this happening and how can this be corrected,javascript | |
| write code that assigns to double b the result of rounding double a to the nearest integer i don t know what to do... i have two doubles and i need b to be the result of a rounded to the nearest integer... <pre><code>// enter a value to test here double a = ; double b; // enter your code here </code></pre>,java | |
| identify datetime64 columns in a dataframe using python i need to identify which of the columns in a dataframe (having many columns) are datetime64[ns] . i imported the csv file and used df.dtype() syntax to display the datatypes.however the output shows dtype as object instead of datetime64 for the columns that have dates. please help i am a beginner (i have imported from datetime import datetime ).,python | |
| why is 4 not an instance of number just curious: <ul> <li>4 instanceof number => false</li> <li>new number(4) instanceof number => true </li> </ul> why is this same with strings: <ul> <li><code> some string instanceof string</code> returns false</li> <li><code>new string( some string ) instanceof string</code> => true</li> <li><code>string( some string ) instanceof string</code> also returns false</li> <li><code>( some string ).tostring instanceof string</code> also returns false</li> </ul> for object array or function types the instanceof operator works as expected. i just don t know how to understand this. [<strong>new insights</strong>] <pre><code>object.prototype.is = function() { var test = arguments.length [].slice.call(arguments) : null self = this.constructor; return test !!(test.filter(function(a){return a === self}).length) : (this.constructor.name || (string(self).match ( /^function\s*([^\s(]+)/im ) || [0 anonymous_constructor ]) [1] ); } // usage var newclass = function(){}; // anonymous constructor function var some = function some(){}; // named constructor function (5).is(); //=> number hello world .is(); //=> string (new newclass()).is(); //=> anonymous_constructor (new some()).is(); //=> some /[a-z]/.is(); //=> regexp 5 .is(number); //=> false 5 .is(string); //=> true </code></pre>,javascript | |
| "why is e.preventdefault(); only working once i have a form which uses e.preventdefault to prevent it from refreshing however if i use the form to submit something again the page refreshes... i have had a look as to why this is happening but i can t figure out why it works the first time but not the second... or third... etc... i have attached my code below. thanks in advance. <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>// scripts | |
| // store element in dom | |
| const searchbutton = document.getelementbyid( submit-button ); | |
| // add event listener to button | |
| searchbutton.addeventlistener( click searchfornews); | |
| // function to search for news | |
| function searchfornews(e) { | |
| e.preventdefault(); | |
| // store element in dom | |
| const searchform = document.getelementbyid( search-form ); | |
| // retrieve the value in the input field | |
| const searchterm = searchform.value; | |
| // log to console | |
| console.log( you searched for + searchterm); | |
| // token | |
| const token = xxxxxxxx; | |
| const urlarray = new array; | |
| // create the urls to search for the news | |
| const guardianurl = http://webhose.io/filterwebcontent token= + token + &format=json&sort=crawled&q= + searchterm + %20site_type%3anews%20site%3atheguardian.com%20language%3aenglish%20performance_score%3a%3e5 ; | |
| const bbcurl = http://webhose.io/filterwebcontent token= + token + &format=json&sort=crawled&q= + searchterm + %20site_type%3anews%20site%3abbc.co.uk%20language%3aenglish%20performance_score%3a%3e5 ; | |
| const telegraphurl = http://webhose.io/filterwebcontent token= + token + &format=json&sort=crawled&q= + searchterm + %20site_type%3anews%20site%3atelegraph.co.uk%20language%3aenglish%20performance_score%3a%3e5 ; | |
| // push each url in to the array | |
| urlarray.push(guardianurl); | |
| urlarray.push(bbcurl); | |
| urlarray.push(telegraphurl); | |
| console.log(urlarray[0]) | |
| // declare element | |
| const headerwrapper = document.getelementbyid( header-wrapper ); | |
| // add class to headerwrapper | |
| headerwrapper.classlist.add( header-small ); | |
| // templates for news sources | |
| guardiantemplate = <div id= theguardian data-source= theguardian.com class= news-wrapper ><div class= source-name ><p>the guardian</p></div></div> ; | |
| bbctemplate = <div id= bbc data-source= bbc.co.uk class= news-wrapper ><div class= source-name ><p>bbc news</p></div></div> ; | |
| telegraphtemplate = <div id= telegraph data-source= telegraph.co.uk class= news-wrapper ><div class= source-name ><p>the telegraph</p></div></div> ; | |
| var articlewrapper = document.getelementbyid( article-wrapper ); | |
| articlewrapper.innerhtml = ; | |
| const searchedtemplate = <div class= searched-for ><h1>you searched for + searchterm + </h1></div> ; | |
| // insert template in to header wrapper element | |
| headerwrapper.innerhtml += searchedtemplate; | |
| // insert templates in to element | |
| articlewrapper.innerhtml += guardiantemplate; | |
| articlewrapper.innerhtml += bbctemplate; | |
| articlewrapper.innerhtml += telegraphtemplate; | |
| // for loop to go through the url array | |
| for (let i = 0; i < urlarray.length; i++) { | |
| // declare a new request | |
| const newsreq = new xmlhttprequest(); | |
| // open the request | |
| newsreq.open( get urlarray[i] true); | |
| // function to run when loading | |
| newsreq.onload = function() { | |
| // if the status is between 200 and 399 | |
| if (this.status >= 200 && this.status < 400) { | |
| // request is successful | |
| // parse the response | |
| const res = json.parse(this.response); | |
| // enter the posts object | |
| const posts = res.posts; | |
| // for look to go through the response | |
| for (let i = 0; i < posts.length; i++) { | |
| // get the name of the site | |
| const source = posts[i].thread.site; | |
| // get image | |
| const image = posts[i].thread.main_image; | |
| // get the title post | |
| var title = posts[i].title; | |
| // split using the | symbol take the first string in array | |
| var title = title.split( | )[0]; | |
| // take the string and replace = bbc news with nothing | |
| var title = title.replace( - bbc news ); | |
| // trim excess spaces around string | |
| var title = title.trim(); | |
| const articleurl = posts[i].thread.url | |
| // log to console | |
| console.log(title + | + source + | + articleurl); | |
| var template = <a class= link href= + articleurl + ><div class= article > + | |
| <img class= image src= + image + > + | |
| <div class= title > + title + </div> + | |
| </div></a> ; | |
| // declare element | |
| var newswrapper = document.queryselectorall( .news-wrapper ); | |
| // look through the newswrapper element to find elements that match source names | |
| var currentwrapper = [...newswrapper].find((wrapper) => wrapper.dataset.source === source); | |
| // create fragment | |
| var articlefragment = document.createrange().createcontextualfragment(template); | |
| // add the fragment to the correct wrapper | |
| currentwrapper.appendchild(articlefragment); | |
| } | |
| } else { | |
| // we reached our target server but it returned an error | |
| } | |
| }; | |
| newsreq.onerror = function() { | |
| // there was a connection error of some sort | |
| }; | |
| newsreq.send(); | |
| } | |
| }</code></pre> | |
| <pre class= snippet-code-css lang-css prettyprint-override ><code>/* stylesheet */ | |
| body { | |
| font-style: normal; | |
| font-weight: 600; | |
| font-size: 18px; | |
| color: #242424; | |
| } | |
| input { | |
| font-family: graphik ; | |
| } | |
| * { | |
| box-sizing: border-box; | |
| font-family: graphik ; | |
| } | |
| .header-wrapper { | |
| display: flex; | |
| flex-direction: column; | |
| justify-content: center; | |
| align-items: center; | |
| width: 100vw; | |
| height: 100vh; | |
| transition: height 0.5s ease; | |
| } | |
| .header-small { | |
| height: 300px; | |
| } | |
| .logo-wrapper { | |
| width: 100%; | |
| max-width: 500px; | |
| margin-bottom: 25px; | |
| } | |
| .logo { | |
| max-width: 100%; | |
| } | |
| .search-wrapper { | |
| width: 100%; | |
| max-width: 500px; | |
| } | |
| .form-wrapper { | |
| display: flex; | |
| flex-direction: row; | |
| position: relative; | |
| width: 100%; | |
| max-width: 500px; | |
| } | |
| .search-form { | |
| width: 100%; | |
| text-align: center; | |
| padding: 10px; | |
| border-radius: 50px 0 0 50px; | |
| outline: none; | |
| border: 1px solid lightgrey; | |
| border-right: none; | |
| } | |
| .submit-button { | |
| border-radius: 0 50px 50px 0; | |
| border: 1px solid lightgrey; | |
| border-left: none; | |
| background-color: #fff; | |
| padding: 10px; | |
| width: 45px; | |
| height: 43px; | |
| background-image: url(/assets/images/search.svg); | |
| background-position: center; | |
| background-repeat: no-repeat; | |
| background-size: 20px; | |
| transition: 0.25s ease; | |
| } | |
| .submit-button:hover { | |
| cursor: pointer; | |
| background-size: 25px; | |
| } | |
| .article-wrapper { | |
| display: flex; | |
| flex-direction: row; | |
| } | |
| .news-wrapper { | |
| width: 33.33%; | |
| margin-left: 20px; | |
| margin-right: 20px; | |
| } | |
| .source-name { | |
| width: 100%; | |
| text-align: center; | |
| } | |
| .image { | |
| max-width: 100%; | |
| } | |
| .article { | |
| margin-bottom: 20px; | |
| } | |
| .title { | |
| padding: 10px; | |
| } | |
| .link { | |
| text-decoration: none; | |
| color: #242424; | |
| } | |
| @media screen and (max-width: 512px) { | |
| .header-wrapper { | |
| padding: 40px; | |
| } | |
| .article-wrapper { | |
| flex-direction: column; | |
| } | |
| .news-wrapper { | |
| width: 100%; | |
| } | |
| }</code></pre> | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><!doctype html> | |
| <html lang= en > | |
| <head> | |
| <!-- character encoding --> | |
| <meta charset= utf-8 > | |
| <!-- viewport --> | |
| <meta name= viewport content= width=device-width initial-scale=1 > | |
| <!-- optional | |
| <meta name= author content= name > | |
| <meta name= description content= description here > | |
| <meta name= keywords content= keywords here > | |
| --> | |
| <!-- title of page --> | |
| <title>broadbulletin</title> | |
| <link rel= stylesheet href= css/style.css type= text/css > | |
| <link rel= stylesheet href= css/normalize.css type= text/css > | |
| <!-- web fonts --> | |
| <!-- <link rel= stylesheet href= css/fonts.css type= text/css > --> | |
| </head> | |
| <body> | |
| <div id= header-wrapper class= header-wrapper > | |
| <div class= logo-wrapper > | |
| <img class= logo src= assets/images/logo.png alt= logo > | |
| </div> | |
| <div class= search-wrapper > | |
| <div class= form-wrapper > | |
| <form class= form-wrapper > | |
| <input id= search-form class= search-form type= text placeholder= what s in the news today > | |
| <input id= submit-button class= submit-button type= submit value= > | |
| </form> | |
| </div> | |
| </div> | |
| </div> | |
| <div class= article-wrapper id= article-wrapper > | |
| </div> | |
| <!-- scripts --> | |
| <script src= js/script.js type= text/javascript ></script> | |
| </body> | |
| </html></code></pre> | |
| </div> | |
| </div>",javascript | |
| how to force a method to be overridden in java i have to create a lot of very similar classes which have just one method different between them. so i figured creating abstract class would be a good way to achieve this. but the method i want to override (say method foo()) has no default behavior. i don t want to keep any default implementation forcing all extending classes to implement this method. how do i do this,java | |
| defining attributes of a class in python how should i define the attributes of a class <pre><code>class example: def __init__(self n m): self.n=n self.m=m </code></pre> or in this way: <pre><code>class example: m=0 n=0 def __init__(self n m): self.n=n self.m=m </code></pre> if i define an attribute outside the constructor is it a static variable,python | |
| javascript global property definition why is it possible to do this: <pre><code>test: { one: 1; two: 2; three: 3; } </code></pre> and not possible to do this: <pre><code>var test = { one: 1; two: 2; three: 3; } </code></pre> by default the properties are separated by comma but in the first example it is working in the second i get an error the question is why the first one is working if that is a wrong json hm,javascript | |
| python - if a user enters \n in an input and the varible is printed the \n makes a new line for example if i did this: <pre><code>test=input( text: ) print(test) </code></pre> and then set test as<code>hello\nhow are you </code> and then call test() i want it to appear as this: <pre><code>hello how are you </code></pre> and not <pre><code>hello\nhow are you </code></pre> is this possible -darth,python | |
| presenting modalviewcontroller turns the orientation of my app on start up i m trying to only support landscape. there s a new requirement to show this dialog box that explains some things about our app the first time. so in my first view controller that gets launched in viewdidload i have this code: <pre><code>bool showfirsttimeuse = [[nsuserdefaults standarduserdefaults] boolforkey:@ showfirsttimeuse ]; if (!showfirsttimeuse) { firstuseviewcontroller *tvc = [[firstuseviewcontroller alloc] initwithnibname:@ firstuseviewcontroller bundle:nil]; tvc.modalpresentationstyle = uimodalpresentationformsheet; tvc.modaltransitionstyle = uimodaltransitionstylefliphorizontal; [self presentmodalviewcontroller:tvc animated:yes]; [tvc release]; } </code></pre> then in the firstuseviewcontroller i have this defined: <pre><code>- (bool)shouldautorotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation { // return yes for supported orientations return uiinterfaceorientationlandscapeleft | uiinterfaceorientationlandscaperight; } </code></pre> in ib i have not changed any of the default settings. i basically just dropped a uiwebview to the upper left hand side of the screen to show my data and connected an outlet to it so i can show formatted text easily. when i run my app now the presentation of this view controller causes my app to start in portrait rather than landscape. how do i fix this thanks.,iphone | |
| get time different (minutes) in javascript how do i calculate the difference in minutes given two strings. for example say i have <pre><code>11:00 11:30 </code></pre> but of course the second string could be 12:11 so i can t subtract just the minutes.,javascript | |
| get all the coincidences with given value from object array i have this array of objects: <pre><code>var hola = [{key:id desc:description }]; // they are filled with data with ajax from a table </code></pre> this are the values right now <pre><code> var hola = [ {key: al-32021611 descc: 7500 } {key: al-32021612 descc: continental } {key: al-32021612 descc: r3 } {key: al-32021612 descc: 7500 } ]; </code></pre> what i need is that with a given value i get for example <pre><code> newarr= {key:al-32021612}[descc: continental r3 7500 ] </code></pre> but from this newarr i just need the key like some kind of index to get all its descc values in a var and im really lost and here is why <pre><code>$.each(newarr function (i data) { trhtml = <div class= three_col_to_one_col categories > + idval[i] + </div> }) </code></pre> i will use this newarr as the length of this each and print its content but i just need this descc values for that its complicated and messy but im new and i might get downvotes but thanks for reading me anyway,javascript | |
| additonal validations in onsubmithandler javascript when user clicks the submit button; i need to call a function deleteorphanrecords that prompts the user to delete them when there are any orphan records to be deleted. origional code only displays the error message for the orphan records and prevents the user from further processing. <pre><code><form onsubmit= return onsubmithandler() action= /admin/changesrecorded.html method= post id= submitform > </code></pre> i added that additional function to the onsubmithandlerfunction like this - <pre><code>function onsubmithandler() { deleteorphanrecords(); // more blackbox code that only displays the alert but does not allow the user to delete the orphan records. return true; } </code></pre> the deleteorphanrecords function is working fine but i have a loading window that blocks the user from clicking the yes/no buttons on the main page when any orphan records are found. so the page eventually ends up showing the alert. how should i call the deleteorphanrecords so i can delete the records and simultaneously submit the form too. thanks in advance!,javascript | |
| java convert from decimal to 8-bit binary i wrote simple java code to convert from decimal to 8-bit binary: sorry for this stupid question <pre><code> 1 int dec=1; 2 string result= ; 3 string reverse = ; 4 while(dec!=0) 5 { 6 result+=dec%2; 7 dec=dec/2; 8 } 9 //8-bit binary 10 system.out.println( dec length is : +result.length()); </code></pre> // int j=8-result.length(); // for(int i=0;i <pre><code> 11 for(int i=0;i<(8-result.length());i++) 12 { 13 result+=0; 14 system.out.println( * ); 15 } 16 system.out.println( 8-bit before reverse: +result); 17 for(int i = result.length() - 1; i >= 0; i--) 18 { 19 reverse = reverse + result.charat(i); 20 } 21 system.out.println( 8-bit representation: +reverse); </code></pre> the result was : dec length is :1 * * * * 8-bit before reverse:10000 8-bit representation:00001 but when i remove line 13 (result+=0;) the compiler print 7 asterisk(*) what is the reason for that length of result will update every time,java | |
| how do i remove duplicate ids <pre><code><td id= table_line_0 > <input id= btnadd0 type= button value= + onclick= newline() > </td> <td id= table_line_0 > <input id= btnadd1 type= button value= + onclick= newline() > </td> </code></pre> i need a javascript function to remove the two id (table_line_0)... tks!! <pre><code>function removeid(id) { ... i do not know what to do to find duplicate id .. line_table = document.getelementbyid(id); line_table.parentnode.parentnode.removechild(line_table.parentnode); } </code></pre> i have two tr with same id ... i want to remove the tr with the same id..,javascript | |
| why is there no directory class the file class contains methods that are applicable only to directories and just return null for regular files. why are they not defined as separate classes sharing an abstract parent,java | |
| how to dynamically create directories and output files into them python i have a python script that is trying to create a directory tree dynamically depending on the user input. this is what my code looks like so far. <pre><code>if make_directories: os.makedirs(outer_dir) os.chdir(outer_dir) for car in cars: os.makedirs(car) os.chdir(car) #create a bunch of text files and do other stuff os.chdir( ../ ) os.chdir( ../ ) </code></pre> i was wondering if there was a better way to do this i don t know if this is bad convention to keep changing directories like this. note: cars is a list of car names that the user provides outer_dir is a directory name that is also provided by the user,python | |
| how can i let the users of my python hangman game input their own words i have been stuck on this for a while now and i can t figure out what to do. i know that it will probably involve creating an empty list and then adding the words to the list but i haven t got a clue when it comes to retrieving the words as i have never done this before. the code itself works it s just adding this new function i m having trouble with. <pre><code>import random import sys #importing both random and time modules print( hello! ) playagn = yes animalnames = [ wildebeest wolverine woodlouse woodpecker yak zebra ] #this is the list of words that the user will have to guess if they play the game multiple times while playagn == yes : secretword = random.choice(animalnames) #this line tells the computer to randomly select one of the words in the list animalnames lives = 6 #defining how many lives the user has guessedletters = [] print( okay!\n lets play hangman!! ) while lives > 0: inword = false #user has not guessed word yet so the boolean value is automatically off (false) print( you have lives lives ) #tells the user how many lives they have left guessedletter = input( guess a letter: ) if len(guessedletter) > 1: print( error! please only enter 1 letter at a time ) #if the user tries to guess something longer than 1 character the computer displays a message asking to only enter 1 letter at a time elif guessedletter in guessedletters: print( sorry you have already guessed this letter. try again ) #if the user tries to guess a letter that has already been guessed the computer displays a message telling the user to choose another letter as they have already chose this one else: guessedletters+=str(guessedletter) #adds the guessed letter to guessedletters variable print( you have guessed: ) for letter in guessedletters: print(letter.upper() ) #prints the letters already guessed in uppercase shownword = for letter in secretword: if letter in guessedletters: shownword +=str(letter) #if the letter is in guessedletters then add the letter to shownword(word displayed to user) if letter == guessedletter: inword = true #inword is true as the guessed letter is in the secret word else: shownword+=str( _ ) #the computer is now adding the underscores too the word being displayed to the user print(shownword) #the computer prints the word with the letters that the user has guessed so far (word including underscores for not yet guessed characters) if _ not in shownword: print( congratulations you won! the word was shownword ) #if there are no underscores(meaning the word is completed) tell the user they have won the game break elif inword == false: #the guessed word is not in the secret word so the boolean value is now off (false) print( no luck guessedletter is not in my word ) lives -= 1 #deducts a life for the wrong letter being guessed and also displays a message telling the user that the letter just guessed isn t in the secret word if lives == 0: print( you have run out of lives. the word was secretword ) #if the user runs out of lives and still hasn t guessed the word tell them they failed to beat the game and also tell them the word while true: playagn = input( would you like to play again yes/no: ) if playagn == no : print( okay\n goodbye! ) break elif playagn == yes : break </code></pre> thanks a lot to anyone who can help figure this out :),python | |
| how do external js work from what i ve read this should work why doesn t it i m having a very simple problem understanding the scope of variables with external javascript pages. from what i read if i call an external sheet all global functions and variables should be able to be accessed. i can t seem to get it to work. knowing the right question to ask to search is the hard part and i could comb through the internet for days for a problem someone could probably explain easily and quickly. i have seen something simliar in this tutorial <a href= http://www.tizag.com/javascriptt/javascriptexternal.php rel= nofollow noreferrer >http://www.tizag.com/javascriptt/javascriptexternal.php</a> i searched quickly stack found this: <a href= https://stackoverflow.com/questions/500431/javascript-variable-scope >what is the scope of variables in javascript </a> and even as i write this i m looking for the answer. simply i have an external sheet in the same directory and the file name is trial.js. then i have an index.html simply trying to use the global function from the external trial.js to the index page. this is possible according to the tizag tutorial using a function in the button onclick attribute. also many frameworks work on this principle too right although i know they are a bit more sophisticated using $(a)<~~~references or something. thanks for anyone s help i ll continue to look but hopefully the internet can help!! localhost/trial.js: <pre><code>function trysomething(){ alert( trying ); } </code></pre> localhost/index.html: <pre><code><html> <head> <title>objects222</title> <script src= trial.js ></script> </head> <body> <script type= text/javascript > trysomething(); </script> hello </body> </html> </code></pre> it was originally in resource but i wanted to make it even simplier. using firefox and chrome doesn t work for me those who say it s working upon loading the page you get an alert that says trying anyone any ideas why it might not be working locally. i cleared all my cache and tried renaming to force upload. also used chrome firefox and ie still no alert on load @ localhost.,javascript | |
| how to launch a 32-bit java process from a 64-bit java process without hardcoding paths i have a 64-bit java application and i would like to run a particular jar application in 32-bit mode. for testing i have done this in a disposable class: <pre><code>public class invoke32bit { public static void main(string[] args) { try { runtime.getruntime().exec( \ c:\\program files (x86)\\java\\jre7\\bin\\java.exe\ -jar c:\\dev\\test.jar ); } catch (exception e) { e.printstacktrace(); } } } </code></pre> and it works...but how can i avoid hardcoding the java path the machines that will be using this application will have both 64-bit and 32-bit jre s installed (this application is used internally and we don t have to worry about anyone else using it) one approach i ve thought of is to provide a config file to allow users to enter the path to 64-bit and 32-bit java but if there was a way to automate this that would be better.,java | |
| try-surrounded imports and catching keyboardinterrupt i m seeing a lot of the following pattern in a codebase i m checking out at the moment: <pre><code>try: import modulea import moduleb from custom.module.a import ax from custom.module.a import ay except keyboardinterrupt: sys.exit() </code></pre> haven t seen it before. what s this guarding against,python | |
| java - looping in try-catch block i am working on writing a file reader and the idea is to have the user enter a number that represents the line number from the text file. the variable that holds this number is of type <code>int</code>. however when the user enters a <code>string</code> instead java throws the <code>inputmismatchexception</code> exception and what i want is to have a loop in the <code>catch</code> clause where i will be looping until the user enters a valid value i.e. an <code>int</code>. the skeleton looks like this: <pre><code> public void _____ throws ioexception { try { // prompting user for line number // getting number from keyboard // do something with number } catch (inputmismatchexception e) { // i want to loop until the user enters a valid input // when the above step is achieved i am invoking another method here } } </code></pre> my question is what are some possible techniques that could do the validation thank you.,java | |
| table view property in iphone how to change the colour of text of each row in tableview in iphone anyone know about it then please give me the guidance. thanks in advance.,iphone | |
| implementing uitableview sections from an nsdictionary objects i want to use an nsdictionary to populate a table view. are there any tutorials to show me how this is done.,iphone | |
| to hide the panel based on text the below mentioned script working properly (1) but if i put elseif condition its not working(2) how can i use elseif condition step 1 <pre><code>function cl_indexchange(sender eventargs) { var pnl = document.getelementbyid( pnlschedule ); var item = eventargs.get_item(); if (item.get_text() == call back later (cbl) ) { pnl.style.display = block ; } else { pnl.style.display = none ; } } </code></pre> step 2 <pre><code>function cl_indexchange(sender eventargs) { var pnl = document.getelementbyid( pnlschedule ); var item = eventargs.get_item(); if (item.get_text() == call back later (cbl) ) { pnl.style.display = block ; } else (item.get_text() == call back after explanation (cbe) ) { pnl.style.display = block ; } elseif (item.get_text() == call back after explanation (cbe) ) { pnl.style.display = block ; }elseif { pnl.style.display = none ; } } </code></pre>,javascript | |
| highlight a text in web view i am using a html page in the web view. i want to track the location of the html page when i tap on the webview.basically i want to mark the selected text in the html page.please help me out as soon as possible. thanks in advance.,iphone | |
| javascript solution for anagram of a palindrome i was asked to implement the same question as this in an interview recently: <a href= https://stackoverflow.com/questions/8447222/anagram-of-a-palindrome >https://stackoverflow.com/questions/8447222/anagram-of-a-palindrome</a> i could not provide an answer but am interested to know the javascript solution.,javascript | |
| when using compareto for strings returns 10 all the time compareto don t give me -10 for bigger argument. (when the string is equal with argument then i get 0). <pre><code> string str2 = strings are immutable ; string str3 = int is a ; int result = str3.compareto( str2 ); system.out.println(result); result = str2.compareto( str3 ); system.out.println(result); </code></pre> if you change the size of str2 or str3 the return number is the same. why is that,java | |
| how to add activity indicator as subview to uibutton can we add activity indicator as subview to uibutton if yes then plz tell me how to do that i used [button addsubview:activityindicator]; not working...,iphone | |
| operation on different data types i ve been trying to figure out what is the result of for example adding <code>int</code> and <code>float</code> parameters together or <code>log2(x) + abs(y)</code> <code>sqrt(x) + true</code> etc. how does python deal with those kind of operations and why where can i find information about this,python | |
| send message to server java i m creating chat program. at first i send message to server from client and server should get message but the message is not sent to the server until i shut down client. <em>here is my code:</em> <strong>client:</strong> <pre><code> private socket client; private thread runclient; private jbutton send; private int port=8000; private string host= localhost ; public void init() {//here we connecting to server send=new jbutton(); send.setfont(new font( times new roman font.bold 15)); send.setlocation(575 text.getheight()+15);//395 send.setbordercolor(color.cyan); send.setforeground(color.white); send.settext( send ); send.setsize(30 70); send.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent e) { sendbutton_click(e); } }); try { inetaddress address = inetaddress.getbyname(host); client = new socket(address port); system.out.println( client started. port: +port+ \n ); }catch(exception e){ system.out.println( error: +e); } } public void sendbutton_click(actionevent e) {//here we sending message to server string sendmessage = hi ; try { sendmessagetoserver(client sendmessage);//sending message to server } catch (ioexception e1) { e1.printstacktrace(); } system.out.println( message sent to the server : +sendmessage); } } private void sendmessagetoserver(socket socket string message) throws ioexception { bufferedwriter writer = new bufferedwriter(new outputstreamwriter(socket.getoutputstream())); writer.write(message); writer.flush(); } </code></pre> <strong>here is server:</strong> <pre><code> private int port=8000; public void init() {//here we starting server and starting thread try { serversocket = new serversocket(port); system.out.println( server on. port: +port+ \n ); } catch (ioexception e1) { e1.printstacktrace(); } runserver = new thread() { public void run() { serverloop(); } }; runserver.start(); } public void serverloop() {//here we should receive message.. while(true) { system.out.println( server loop ); try { socket clientsocket = serversocket.accept(); inputstreamreader inputstreamreader = new inputstreamreader(clientsocket.getinputstream()); bufferedreader bufferedreader = new bufferedreader(inputstreamreader); printwriter printwriter = new printwriter(clientsocket.getoutputstream() true); string line = ; boolean done = false; while (((line = bufferedreader.readline()) != null) &&(!done)){ system.out.println( received from client: + line); if (line.comparetoignorecase( exit ) == 0) done = true; } } catch (exception e){ e.printstacktrace(); } } } </code></pre>,java | |
| get json data from a posted uri in postman in java i have been trying to get <code>json</code> data but it seems i am using the wrong syntax. what syntax is appropriate this is my code <pre><code>@path( /jsondata ) @post @consumes( application/json ) @produces( application/json ) public jsonobject personal(@jsonparam( )jsonobject json) throws jsonexception{ string name = json.getstring( name ); string age = json.getstring( age ); string msg = you entered two things ; string doc = {\ name\ :\ +name+ \ \ age\ :\ +age+ \ \ msg\ :\ +msg+ \ } ; jsonobject outjson = new jsonobject(doc); return outjson; } </code></pre> am getting error on the fifth line at <code>@jsonparam</code>. what should i do. and how do i get the name and age from the json,java | |
| #pragma omp critical vs cpu 100% usage i have wrote a program with open-mp in visual studio 2012 and i have some problem.this is my code: <pre><code> #pragma omp parallel num_threads(4) private(k) { #pragma omp for for(k=0x20ac6e12af3e4db0;k<=maxint64;k++) { u.k=k; init(); decrypt(s1); decrypt(s2); } } </code></pre> above code compiled and my cpu usage was 100% but output was wrong .when i change code to this: <pre><code> #pragma omp parallel num_threads(4) private(k) { #pragma omp for for(k=0x20ac6e12af3e4db0;k<=maxint64;k++) { u.k=k; init(); #pragma omp critical { decrypt(s1); decrypt(s2); } } } </code></pre> outputs become correct but in this case my cpu usage is not 100% and i lost parallelism actually! what can i do,iphone | |
| android custom click listener inline vs field decleration why if i set a custom click listener within the method decleration it works. but if i define the custom click listener as a private field and set it it doesn t work. why <pre><code>public class customview { private view mview; private button mbutton; public customview() { mbutton = new button(); mview = new view(); // this works mview.setonclicklistener(new customclicklistener() { @override public void onclick() { mbutton.settext( xyz ); } }); // this doesn t work as in nothing happens. mview.setonclicklistener(mcustomlistener); } private customclicklistener mcustomlistener = new customclicklistener() { @override public void onclick() { mbutton.settext( xyz ); } }; } </code></pre>,java | |
| jsonignore not working i am trying to make it so these properties don t get serialized but for some reason no matter what i do they are still getting serialized and sent down to the client. i have tried using just <code>@jsonignoreproperties({ dobefore doafter doaftercomplete })</code> i have tried using just <code>@jsonignore</code> on the getters and i have tried both together and it doesn t seem to make a difference. here s what my class looks like: <pre><code>@jsonignoreproperties({ dobefore doafter doaftercomplete }) public class action { //for reordering actions with the default actions private string dobefore; private string doafter; private string doaftercomplete; private string eventid; private list<actionargument> arguments; //action to perform when this action is done private list<action> oncompleteactions; public action() {} public action(string eventid list<actionargument> arguments list<action> oncompleteactions) { this.eventid = eventid; this.arguments = arguments; this.oncompleteactions = oncompleteactions; } public string geteventid() { return eventid; } public void seteventid(string eventid) { this.eventid = eventid; } public list<actionargument> getarguments() { return arguments; } public void setarguments(list<actionargument> arguments) { this.arguments = arguments; } public list<action> getoncompleteactions() { return oncompleteactions; } public void setoncompleteactions(list<action> oncompleteactions) { this.oncompleteactions = oncompleteactions; } @jsonignore public string getdobefore() { return dobefore; } public void setdobefore(string dobefore) { this.dobefore = dobefore; } @jsonignore public string getdoafter() { return doafter; } public void setdoafter(string doafter) { this.doafter = doafter; } @jsonignore public string getdoaftercomplete() { return doaftercomplete; } public void setdoaftercomplete(string doaftercomplete) { this.doaftercomplete = doaftercomplete; } } </code></pre>,java | |
| sum of two numbers coming from the command line i know it s a very basic program but i am getting an error of list out of range. here is the program to take two numbers as command-line arguments (while invoking the script) and display sum (using python): <pre><code>import sys a= sys.argv[1] b= sys.argv[2] sum=str( a+b) print sum is sum </code></pre>,python | |
| glob on non existant file with pattern matching i have this snippet which basically checks if a file exists with pattern matching. please help me with a better way to do this. <pre><code>import glob for afile in glob.glob( *.non-existant-file ): print afile try: if afile: print ok except: print come back later </code></pre>,python | |
| python subprocess stdout iterator always blocks i want to capture the output while printing it but i m blocking forever without reading even a single line. <strong>what s going on </strong> i m using python2. generator script: <pre><code>#!/usr/bin/env python2.7 import random import time while true: print(random.random()) time.sleep(1) </code></pre> sample generator output: <pre><code>$ ./generator.py 0.334835137212 0.896609571236 0.833267988558 0.55456332113 ^ctraceback (most recent call last): </code></pre> reader script: <pre><code>import subprocess cmd = [ ./generator.py ] p = subprocess.popen(cmd stdout=subprocess.pipe) for line in p.stdout: print(line) print( looping ) p.wait() </code></pre> i ve also tried: <pre><code>import subprocess import sys cmd = [ ./generator.py ] p = subprocess.popen(cmd stdout=subprocess.pipe) while true: line = p.stdout.readline() print(line) print( looping ) p.wait() </code></pre> ...and: <pre><code>import sys import subprocess import select import time cmd = [ ./generator.py ] p = subprocess.popen(cmd stdout=subprocess.pipe) s = select.poll() s.register(p.stdout select.pollin) while true: if s.poll(1): line = p.stdout.read() else: p.poll() if p.returncode is not none: break print( looping ) time.sleep(1) p.wait() </code></pre>,python | |
| how to listen to back key event to android back button using java script in webapp i have created a web base app for android device but back button does not work i want that by pressing back button it navigate to index.html i tried <pre><code>document.addeventlistener( backbutton dosomething false); function dosomething(e) { windows.load( index.html ) e.preventdefault(); } </code></pre>,javascript | |
| to find data from one of the many collection and to return true value in python pymongo i m new to python and have mongo db and im using pymongo to find an data in one of the many collection and if i found one i want to stop the and return true,python | |
| js object which should store list of objects as property if i have one object <code>myobj</code> and i want that object to have property clients which will hold list of clientobjects with id and name properties <pre><code>var client= { id: name: }; var myobj= { clients: } </code></pre> how can i populate client properties and use it in myobj.clients,javascript | |
| java: inheritance: **the issue i am having is with public class documentdemo the problem i am having is with public class documentdemo...it is telling me the method containskeyword cannot be declared static; static methods can only be declared in a static or top level type for the boolean part.<br> also it is telling me the same for the public static void main. same error message. i feel there is a easy fix but cannot find it any help would be awesome. <pre><code>public class document { private string text; public document(){ text = ; } public document(string text){ this.text = text; } public string tostring(){ return text; } public class email extends document{ private string sender; private string recipient; private string title; public email(string body string sender string recipient string title){ super(body); this.sender = sender; this.recipient = recipient; this.title = title; } public string getsender(){ return sender; } public void setsender(){ this.sender = sender; } public string getrecipient(){ return recipient; } public void setrecipient(){ this.recipient = recipient; } public string gettitle(){ return title; } public void settitle(){ this.title = title; } public string tostring(){ return sender + sender + recipient + recipient + title + title + + super.tostring(); } public class file extends document{ private string pathname; public file(){ super(); pathname = ; } public file(string body string pathname){ super(body); this.pathname = pathname; } public string getpathname(){ return pathname; } public void setpathname(string s){ pathname = s; } public string tostring(){ return pathname + pathname + body + super.tostring(); } public class documentdemo{ public static boolean containskeyword(document docobject string keyword){ if(docobject.tostring().indexof(keyword 0) >= 0) return true; else return false; } public static void main(string[] args){ email e1 = new email( i am not sure if this is working jarvis professor an attempt at programming in java. ); email e2 = new email( please let this work jarvis my family i am feel lost but i understand the concept ); file f1 = new file( it 2650 java file.txt ); file f2 = new file( getting by file.txt ); system.out.println( which one contains the word java ); if(containskeyword(e1 java )) system.out.println( email 1 ); if(containskeyword(e2 java )) system.out.println( email 2 ); if(containskeyword(f1 java )) system.out.println( file 1 ); if(containskeyword(f2 java )) system.out.println( file 2 ); } } } } } </code></pre>,java | |
| iphone app store. client submitting question i am writing an application which will be submitted by my client. i don t want to give them my source code what must i do,iphone | |
| java code to download a file or a zip file i am using below code to download a file and it works fine for small files but when i tried to download a file whose size > 11gb code is not working and giving <code>java.lang.negativearraysizeexception</code> exception <pre><code>public string downloaddirectory() { outputstream myout = null; fileinputstream fileinputstream = null; file downzip = new file(dirname+ / +dir+ .zip ); getservletresponse().setcontenttype( text/html ); getservletresponse().setheader( content-disposition attachment; filename=\ + dir + .zip + \ ); getservletresponse().setcontentlength((int)downzip.length()); system.out.println( length +(int)downzip.length()); //read data from file byte[] dataread = new byte[(int)downzip.length()]; fileinputstream = new fileinputstream(downzip); fileinputstream.read(dataread 0 (int)downzip.length()); //write data to outfile myout = getservletresponse().getoutputstream(); myout.write(dataread); if (fileinputstream != null) { fileinputstream.close(); } } catch(exception e) { e.printstacktrace(); execute.rmdirscript(dirname); return exception ; } finally{ system.out.println( finally downloaddir ); if(myout!=null){ try{ myout.close();} catch(exception e){ e.printstacktrace();; } } if (fileinputstream != null) { try{ fileinputstream.close();} catch(exception e){ e.printstacktrace();; } } } } </code></pre> the error is at this line: <pre><code>byte[] dataread = new byte[(int)downzip.length()]; </code></pre> the value <code>(int)downzip.length()</code> becomes negative for big files and gives <code>java.lang.negativearraysizeexception</code> exception.,java | |
| why does 4294967295 >> 24 == -1 in javascript i am calculating luminosity in javascript using: <pre><code>luminosity = (5036060 * backgroundcolor.red + 9886846 * backgroundcolor.green + 1920103 * backgroundcolor.blue) >> 24; </code></pre> for the case where the color is white ie all 3 rgb values are 255 i am getting a result of -1. i tested explicitly and in javascript the value 4294967295 >> 24 is -1. why,javascript | |
| how to delete a local notification in iphone i am making an application that sets a local notification. thankfully i was able to set the local notification but i don t know how to delete the notification which is set by my application. the xcode does provide functionality of delete with <code>removeallnotifications</code> but you cannot remove specific notifications set by the application. thanks a lot.,iphone | |
| java code taking input is taking a long time to execute <pre><code>import java.util.*; public class main { public static void main(string [] args){ scanner input = new scanner(system.in); int x = input.nextint(); int sum = 0; for(int i = 1; i <= x ; i ++){ if(x % i ==0){ sum += i ; } } system.out.println ( the sum of the factors is + sum); } } </code></pre> the program is supposed to take in a number and print out the sum of its factors. however it is hanging. i replaced the input code to a simple (int x=10) code and i got the desired answer (18).,java | |
| refactoring the creation of a variable number of planets in java i have to assign a random amount of objects in this program and currently the only way i know to do this is something like this: <pre><code> if (star.returnzones() == 1) { this.createplanet(planet1 star); } else if (star.returnzones() == 2) { this.createplanet(planet1 star); this.createplanet(planet2 star); } else if (star.returnzones() == 3) { this.createplanet(planet1 star); this.createplanet(planet2 star); this.createplanet(planet3 star); } else if (star.returnzones() == 4) { this.createplanet(planet1 star); this.createplanet(planet2 star); this.createplanet(planet3 star); this.createplanet(planet4 star); } else if (star.returnzones() == 5) { this.createplanet(planet1 star); this.createplanet(planet2 star); this.createplanet(planet3 star); this.createplanet(planet4 star); this.createplanet(planet5 star); } </code></pre> i am sure this is a far more efficent way to do this where each one does something along the lines of this. i will be using the term asaboveplus to mean everything above plus one more thing. <pre><code>if (star.returnzones() == 1) { this.createplanet(planet1 star); } else if (star.returnzones() == 2) { asaboveplus this.createplanet(planet2 star); } </code></pre> is there a way to do something like this in java it would really help out.,java | |
| if loop is not working can anyone help me <pre><code>public class meaingcompare { public static void main(string[] args) { int cnt = 0; string st1 u st2; st2 = funny ; int n = 5; system.out.println( enter the string ); scanner in=new scanner(system.in); st1 = in.nextline(); string[] v = st1.split( \\s+ ); for(int i = 0; i < st1.length(); i++) { if(v[i].equalsignorecase(st2)) cnt++; } if(cnt>=4) system.out.println( match found ); } } </code></pre> i am just a beginner in java.i want to get the output as match found if the no: of words in the input string match the word funny is greater than 4 but the if loop is not working.,java | |
| how do i get touch event on webview hope you all are fine and also in one of your best moods!! i have one problem in map based application. kindly go through it and post your suggestion. thing at glance: i need to integrate map in my application. application shows map based on passing parameter as state and city. i am using yahoo map image for that. i.e. pass parameter as following: state : ca city : loss angelous. it shows image of map perfectly that i load on webview. now issue is here: i need to put button at selected city.. i don t know how do i put. because on clicking button i need to load another view that contains details of that city. i don t know how do i do this. kindly give your suggestion. thank you. arun thakkar.,iphone | |
| how to write an if statement that searches for a value within an inherited class i m wiring an assignment that involved inheritance and i am trying to write an if statement that searches if a specific value is true or not. if the value is true to what the if statement is looking for i want to throw an exception if it is not i just want to return that value. here is my code so far: <strong>sub class</strong> <pre><code>public class carnivore extends animal { public food eat(food x) throws exception { if (x.equals( plants )) { throw new exception( carnivores only eat meat! ); } else { return x; } } public void makenoise() { noise = null; } public string getnoise() { return noise; } } </code></pre> <strong>super class</strong> <pre><code>abstract public class animal { string name; int age; string noise; abstract public void makenoise(); public string getname() { return name; } public void setname(string newname) { name = newname; } abstract public food eat(food x) throws exception; } </code></pre> the part in which i am stuck on is rephrasing this: <pre><code>if (x.equals( plants )) { throw new exception( carnivores only eat meat! ); } else { return x; } </code></pre> <strong>food class</strong> <pre><code>public class food { //field that stores the name of the food public string name; //constructor that takes the name of the food as an argument public food(string name){ this.name = name; } public string getname() { return name; } } </code></pre> i want to make it so if the value of x is plants (this is typed in string format) then an exception is thrown else the value is returned. any help would be appreciated thanks.,java | |
| python combine while loop with for loop to iterate through some data i am new to python and in general to programming. i am trying to combine while loop with for loop to iterate through some list but i am getting infinite loops. here is the code <pre><code>l=[0 2 3 4] lo=0 for i in range(len(l)): while (true): lo+=1 if lo+l[i]>40: break print(lo) </code></pre> similarly with this code i got the same endless loop i want an output when the condition lo+ l[i] is greater than 40 stops looping and gives the final lo output or result. i tried every method of indentation of the print line but could not get what i wanted. please comment on this code. thanks in advance.,python | |
| using a list in a string.format in python 2.7 let s assume i have a explicitly defined list with a known number of (numeric) elements say <code>aa=[1 2 3 4 5]</code> - and i d like to print these in a specific string. i m aware i can do this: <pre><code>$ python python 2.7.6 (default nov 23 2017 15:49:48) [gcc 4.8.4] on linux2 type help copyright credits or license for more information. >>> aa=[1 2 3 4 5] >>> print %dx%d+%d+%dx%d %tuple(aa) 1x2+3+4x5 </code></pre> ... but i m not very fond of how the format string <code> %dx%d+%d+%dx%d </code> looks like and i d much rather use <code>string.format</code> kind of specifiers. then i m aware i can use this: <pre><code>>>> print {}x{}+{}+{}x{} .format(aa[0] aa[1] aa[2] aa[3] aa[4]) 1x2+3+4x5 </code></pre> ... but i find writing all the arguments for <code>string.format</code> expanded as <code>aa[0] aa[1] aa[2] aa[3] aa[4]</code> a bit overkill since in this case i explicitly know i have enough <code>{}</code> specifiers for all the elements of the array/list so i d much rather just throw <code>aa</code> in there as in: <pre><code>>>> print {}x{}+{}+{}x{} .format(aa) traceback (most recent call last): file <stdin> line 1 in <module> indexerror: tuple index out of range </code></pre> ... but unfortunately that doesn t work. so what would be a way - if there is one - to just refer to a list like <code>aa</code> in the argument of <code>string.format</code> without having to specifically expand each of its elements as a separate argument,python | |
| is there any mechanism provided by apple store to make the user sign-up to my website before he/she can download the application i am creating an iphone application that requires the users to have an account at my website. but if i have to distribute it through apple store how should i make the users of this iphone application first create an account with my website. there could be a few options like : 1) ask the user to create an account when he/she tries to run the application on iphone. 2) provide a sign-up page in the iphone application itself. my question is is there any mechanism provided by apple store to make the user sign-up to my website before he/she can download the application . kindly give in your suggestions for the same. which would be the best approach for solving my problem. thanks lg,iphone | |
| rights protected photo on iphone i ve been tasked with writing an iphone application that displays a set of images (think powerpoint slideshow). the content of these images need to be protected from forwarding this task seems quite simple with one exception - i d like to prevent the user from taking a screenshot it s not like i m protecting the crown jewels here so i m not looking for military grade super ninja protection. but on the iphone it s so common and easy to take a snapshot... thoughts,iphone | |
| exc_bad_access when returning a cgrect in iphone i have a class which must return a cgrect from one of its methods: <pre><code>-(cgrect)myrect { cgrect rect = cgrectmake(self.mysprite.position.x self.mysprite.position.y self.mysprite.texturerect.size.width self.mysprite.texturerect.size.height); return rect; } </code></pre> i get an exc_bad_access as soon as i try to access the mysprite ivar. thing is if i call it the instance variable mysprite is full of garbage. but if i change the function to return void self.mysprite does contain the correct data. <pre><code>-(void)myrect { cgrect rect = cgrectmake(self.mysprite.position.x self.mysprite.position.y self.mysprite.texturerect.size.width self.mysprite.texturerect.size.height); return rect; } </code></pre> that does not crash when accessing mysprite...,iphone | |
| cannot pass uitouch behind scrollview without disabling scrollview user interaction i subclassed uiscrollview and overrode the touch began method to pass touch events to a button object behind the scroll view(the scroll view is transparent). for some reason only if user interaction of the scrollview is disabled does the event get passed through. does anyone know how to pass events up the responder chain with scroll view without disabling the user interaction thanks david,iphone | |
| getting multiple properties associated with click events i m rank new to javascript thus the question. i m using data-id to pass an idea associated with a click event. <pre><code><a href= # onclick={this.handleclick} data-id={image.id}> </code></pre> this is my handle click method <pre><code>handleclick(event){ event.preventdefault(); let mediaid = event.currenttarget.attributes[ data-id ].value; this.props.handleclick(mediaid); } </code></pre> now i want to capture one more attribute which is the image.src where do i place that data and how do i get the data in my click event handler.,javascript | |
| codingbat hasbad stringindexoutofboundsexception hey guys i was hoping someone could explain to me the error in this code i m just having a little trouble understanding why it s throwing that exception. <img src= https://i.stack.imgur.com/jhoxl.jpg alt= screenshot from codingbat >,java | |
| how to define instantiated function s behavior in javascript using es2015 i want to extend <code>function</code> class and use its instance as a callable function. <pre class= lang-js prettyprint-override ><code>class foo extends function { // how to wite behavior } let foo = new foo(); foo(); foo.call(); // this is callable but no behavior defined </code></pre> how can i let <code>foo</code> have its specific behavior in its declaration,javascript | |
| trying to de-increment only a positive number the form code: <pre><code> <td><form action= cart.php method= get > <input type= button onclick= buttonsubtract1() name= subtract1 value= - /> <input type= text size= 4 id= qty1 name= quantity1 value= 0 /> <input type= button onclick= buttonadd1() name= add1 value= + /> <input type= submit name= product1 value= add /> </code></pre> the javascript: <pre><code>var i = 0; var qty1 = document.getelementbyid( qty1 ).value; function buttonadd1() { document.getelementbyid( qty1 ).value = ++i; } function buttonsubtract1() { if (qty1 > 0) { document.getelementbyid( qty1 ).value = --i;} } </code></pre> i changed the code to increment and de-increment using javascript which worked fine so i tried to make it so that de-incrementation only works if the number is positive but now incrementing is working fine but it is not allowing de-incrementation of any number. why is this,javascript | |
| reading csv file from panda and plotting i have 1000 files in which the data is stored in comma separation. the description of a file is given below: the values are comma separated <code>-9999</code> values should be ignored and if it can be read all the values of row and column should be stored in numbers as it has to used in plotting. the shape of file is [<strong>104 rows x 15 columns</strong>]. the few lines of the files are as follows: <pre><code>0 9.8597e+00 129.944 1.071 6.7433e-06 1.0911e-05 -9999 -9999 3.7134e-07 3.5245e-05 -9999 -9999 26.295 -86.822 -123.017 0 8.7012e+00 130.908 0.966 1.9842e-06 1.0799e-05 -9999 -9999 3.5888e-07 7.8133e-05 -9999 -9999 27.140 -86.818 -122.322 </code></pre> after reading into numeric values i need to plot it into subplot also. like col1 vs col2 col3 vs col5 and so on.... any idea how to achieve it <pre><code>import numpy as np import pandas as pd import matplotlib.pyplot as plt df1=pd.read_csv( small_file_106.txt header=1) print(df1) </code></pre>,python | |
| i m using java theadpool but i got a error i can t understand <pre><code><bean id= threadpooltaskexecutor class= org.springframework.scheduling.concurrent.threadpooltaskexecutor > <property name= corepoolsize value= 6 /> <property name= maxpoolsize value= 6 /> <property name= queuecapacity value= 5 /> <property name= keepaliveseconds value= 120 /> <property name= threadnameprefix value= mythread_ /> </bean> </code></pre> <hr> <pre><code> public static void main(string[] args) { applicationcontext context = new classpathxmlapplicationcontext( spring.xml ); threadpooltaskexecutor executor = (threadpooltaskexecutor) context.getbean( threadpooltaskexecutor ); list<integer> list = new arraylist<integer>(); for(int i=0;i<1000;i++){ list.add(i); if(6 == list.size()){ dowork(list executor); list.clear(); } } if(list.size() > 0) dowork(list executor); system.out.println( all work finished ); } static void dowork(list<integer> list threadpooltaskexecutor executor){ final countdownlatch latch = new countdownlatch(list.size()); for(final int i:list){ executor.execute(new runnable() { @override public void run() { try { thread.sleep(200); latch.countdown(); } catch (interruptedexception e) { e.printstacktrace(); } } }); } try { latch.await(); } catch (interruptedexception e) { e.printstacktrace(); } } </code></pre> above is my code. when i set queuecapacity 6 or lager than 6 it works well but when queuecapacity is less than 6 the program will got error: <pre><code>> exception in thread main > org.springframework.core.task.taskrejectedexception: executor > [java.util.concurrent.threadpoolexecutor@1f7911b[running pool size = > 6 active threads = 0 queued tasks = 5 completed tasks = 18]] did > not accept task: com.my.service.test.test$1@1de8526; nested exception > is java.util.concurrent.rejectedexecutionexception: task > com.my.service.test.test$1@1de8526 rejected from > java.util.concurrent.threadpoolexecutor@1f7911b[running pool size = > 6 active threads = 0 queued tasks = 5 completed tasks = 18] at > org.springframework.scheduling.concurrent.threadpooltaskexecutor.execute(threadpooltaskexecutor.java:305) > at com.my.service.test.test.dowork(test.java:42) at > com.my.service.test.test.main(test.java:27) at > sun.reflect.nativemethodaccessorimpl.invoke0(native method) at > sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57) > at > sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) > at java.lang.reflect.method.invoke(method.java:606) at > com.intellij.rt.execution.application.appmain.main(appmain.java:120) > caused by: java.util.concurrent.rejectedexecutionexception: task > com.my.service.test.test$1@1de8526 rejected from > java.util.concurrent.threadpoolexecutor@1f7911b[running pool size = > 6 active threads = 0 queued tasks = 5 completed tasks = 18] at > java.util.concurrent.threadpoolexecutor$abortpolicy.rejectedexecution(threadpoolexecutor.java:2048) > at > java.util.concurrent.threadpoolexecutor.reject(threadpoolexecutor.java:821) > at > java.util.concurrent.threadpoolexecutor.execute(threadpoolexecutor.java:1372) > at > org.springframework.scheduling.concurrent.threadpooltaskexecutor.execute(threadpooltaskexecutor.java:302) > ... 7 more </code></pre> who can tell me why when a put a task to therad pool the poll firt put the task to workqueue,java | |
| what s the difference between live and not live collection in javascript selectors how can i know what is the difference between live and not live collection. <em>according to my research:</em> a <strong>live</strong> is: when the changes in the dom are reflected in the collection. the content suffers the change when a node is modified. a <strong>not live</strong> is : when any change in the dom does not affect the content of the collection. document.getelementsbyclassname() is an htmlcollection and is live. document.getelementsbytagname() is an htmlcollection and is live. document.getelementsbyname() is a nodelist and is live. document.queryselectorall() is a nodelist and is not live. <strong>why document.queryselectorall is not live </strong> <em>i know that :</em> <strong>htmlcollection</strong> only contains elements nodes <strong>nodelist</strong> contains element nodes and text nodes.,javascript | |
| \n is not working in plist i created array.plist file where i am storing key value pair e.g key = my_first_message value = welcome\n i am happy to serve you. in xml format welcome\n i am happy to serve you. i received this sting in dictionary and display in textview like below code textview.text = [mydict objectforkey:my_first_message]; but i am not able to get newline. it should be look like below welcome i am happy to serve you but i got it like welcome\n i am happy to serve you on textview view i debug this problem my got string from plist is like welcome\n i am happy to serve you. please suggest me how to remove \n from string which are from plist i tried \n /n /\n all combination. thanks manu,iphone | |
| converting button into integer i have two buttons and i had taken one button tag and want to compare with the another button like this <pre><code>if ([sender tag] != ((uibutton*)[self.view viewwithtag:[self number]])) </code></pre> then the warning is comparison between nsinteger and pointer type is not possible. so please help me how to convert pointer to integer any help would be appreciated. thanks in advance.,iphone | |
| iphone sdk: interact with images i was making an app for the iphone and part of what i want to do is that whenever the user touches a certain spot (let s say a circle) the app should react and do something. how do i pinpoint that one spot as a button or is there a different way to do this i have a uiscrollview with a subview of a uiimageview. thanks in advance! guy,iphone | |
| lazy.js how to select distinct (uniq) by two fields we are using lazy.js. if i have selected one field i know i can use the <code>uniq(fieldname)</code> function to get distinct results. for example: <pre><code>var uniquevalues = lazy(somearray) .map(function (e) { return e.fieldname }) .uniq() .value(); </code></pre> how do you do the same operation on two fields this is what i tried: <pre><code>var uniquevalues = lazy(somearray) .map(function (e) return { fieldname1 : e.fieldname1 fieldname2 : e.fieldname2 }) .uniq(); .value(); </code></pre> but it s not making it distinct by both fields.,javascript | |
| error in asihttp class i am using asihttp class.i am using non-arc code structure.and also using libasilib.a instead of implementation file. i am getting error:<code>undefined symbols for architecture i386: _objc_class_$_asiformdatarequest referenced from:</code> i am able to run in device but not able to run in simulator.please help me.thanking you in advance...,iphone | |
| adding time to a date in javascript i have this script; <pre><code>showdiff(); function showdiff() { var date1 = new date( 2016/03/14 00:00:00 ); var date2 = new date(); var diff = (date2 - date1); var diff = math.abs(diff); var result; if (diff > 432000000) { result = 100 + % ; } else { result = (diff/4320000) + % ; } document.getelementbyid( showp ).innerhtml = result; document.getelementbyid( pb ).style.width = result; settimeout(showdiff 1000); } </code></pre> now i want to get exactly one week added to date1 when atleast one week has passed since that time. that date has to be saved so that one week later another week can be added to date1. so basically every monday there has to be one week added to date1. how do i this,javascript | |
| setting uinavigationbar properties in viewdidload does nothing i ve tried setting the style of the uinavigationbar to be a translucent style in the viewdidload method of my controller. but nothing is changed. why i set the property using the standard code like <pre><code>self.navigationcontroller.navigationbar.barstyle = uibarstyleblacktranslucent; </code></pre>,iphone | |
| call a c library from python i ve found a library which is in c ( ) that i want to try from python: <a href= https://github.com/centaurean/density rel= nofollow >https://github.com/centaurean/density</a> i d like to see if i can store compressed files on disk and decompress them in memory for faster full-file reading times. i m new to using external code from python. how can i create a python function that uses this library with a little overhead as possible (i will work with windows or linux),python | |
| what is the best way to memorize all method names and their related classes and interfaces in java hi i am new to java and facing difficulties in learning methods and their parameters tell me the best way of memorizing all methods interfaces names etc,java | |
| can t override nsurlconnection canauthenticateagainstprotectionspace and didreceiveauthenticationchallenge delegate methods i am simply trying to ignore an unsigned ssl certificate and am i am directly following examples i found online of how to override two delegate methods of nsurlconnection as follows to allow my app to use an https connection to a server which has a self-signed certificate: <pre><code>- (bool)connection:(nsurlconnection *)connection canauthenticateagainstprotectionspace:(nsurlprotectionspace *)protectionspace { nslog( @ canauthenticateagainstprotectionspace() called ); return( [protectionspace.authenticationmethod isequaltostring:nsurlauthenticationmethodservertrust] ); } - (void)connection:(nsurlconnection *)connection didreceiveauthenticationchallenge:(nsurlauthenticationchallenge *)challenge { nslog( @ didreceiveauthenticationchallenge() called ); nsarray *trustedhosts = [nsarray arraywithobject:@ myhost.mydomain.com ]; if( [challenge.protectionspace.authenticationmethod isequaltostring:nsurlauthenticationmethodservertrust] ) { if( [trustedhosts containsobject:challenge.protectionspace.host] ) { [challenge.sender usecredential:[nsurlcredential credentialfortrust:challenge.protectionspace.servertrust] forauthenticationchallenge:challenge]; } } [challenge.sender continuewithoutcredentialforauthenticationchallenge:challenge]; } </code></pre> the above 2 methods are never called in spite of the fact that the signatures are identical to those in nsurlconnection.h and my implementation of didfailwitherror below is called: <pre><code>- (void)connection:(nsurlconnection *)connection didfailwitherror:(nserror *)error { nslog( @ didfailwitherror() ); nsdictionary *userinfo = error.userinfo; nsarray *keys = userinfo.allkeys; nsarray *values = userinfo.allvalues; for( int i = 0; i < keys.count; i++ ) { nslog( @ nsurlconnection.didfailwitherror: %@: %@ (nsstring *) [keys objectatindex:i] (nsstring *) [values objectatindex:i] ); } badconnection = yes; asyncdone = yes; } </code></pre> the rest of my nsurlconnection delegate methods work perfectly when i use the same class to access a non secure url. i am utterly stumped as to why just these two delegate methods are not cooperating. thanks rick,iphone | |
| iphone:play .asf streaming audio file on iphone programmatically i am trying to play a streaming audio from a link where i get .asf file. but my program is unable to play it. i found the below link where they are talking about the samething.. <a href= http://www.iphonedevsdk.com/forum/iphone-sdk-development/31117-asf-streaming-iphone.html rel= nofollow noreferrer >http://www.iphonedevsdk.com/forum/iphone-sdk-development/31117-asf-streaming-iphone.html</a> seems like some apps are able to play it. i got confused now. could someone guide me whether it is possible to play *.asf file or not on iphone if yes how can i achieve it thank you.,iphone | |
| html forms not working with python i ve created a html page with forms which takes a name and password and passes it to a python script which is supposed to print the persons name with a welcome message. however after i post the values i m just getting the python code displayed in the browser and not the welcome message. i have stored the html file and python file in the cgi-bin folder under apache 2.2. if i just run a simple hello world python script in the browser the hello world message is being displayed. i m using winxp python 2.5 apache 2.2. the code that i m trying to run is the following: <pre><code>#!c:\python25\python.exe import cgi import cgitb; cgitb.enable() form = cgi.fieldstorage() reshtml = content-type: text/html\n <html> <head><title>security precaution</title></head> <body> print reshtml user = form[ username ].value pass = form[ password ].value if user == gold and pass == finger : print <big><big>welcome print mr. goldfinger !</big></big><br> print <br> else: print sorry incorrect user name or password print </body> print </html> </code></pre> the answer to it might be very obvious but its completely escaping me. i m very new to python so any help would be greatly appreciated. thanks.,python | |
| can web apps in iphone call inapp for virtual things purchase if i would like to write a web apps that users can purchase some virtual things can i call the iphone inapp or i can use other payment methods,iphone | |
| do/while loop not returning to the top recently started computer programming and i am stuck on a homework assignment. i created a loop but instead of going back to the top it starts 1 step ahead of where i intended it to. (it s all listed in the comments i made in the coding. i have been trying to figure this out for the past 6 hours so it would greatly appreciated if someone can help me. <pre><code>import java.util.scanner; import java.text.decimalformat; public class election { public static void main (string[] args) { decimalformat f = new decimalformat( ##.00 ); decimalformat n = new decimalformat( ## ); float votesforpolly; float votesforernest; float totalpolly = 0; float totalernest = 0; string response; int precinctsforpolly = 0; int precinctsforernest = 0; int precinctsties = 0; scanner scan = new scanner(system.in); system.out.println (); system.out.println ( election day vote counting program ); system.out.println (); do { //point a system.out.println( do you wish to enter more votes enter y:n ); response = scan.next(); if (response.equals( y )) { //point b system.out.println( enter votes for polly: ); votesforpolly = scan.nextint(); system.out.println( enter votes for ernest: ); votesforernest = scan.nextint(); totalpolly = totalpolly + votesforpolly; totalernest = totalernest + votesforernest; system.out.println( do you wish to add precincts enter y:n ); response = scan.next(); while (response.equals( y )) { system.out.println( how many precincts voted for polly: ); precinctsforpolly = scan.nextint(); system.out.println( how many precincts votes for ernest: ); precinctsforernest = scan.nextint(); system.out.println( how many were ties: ); precinctsties = scan.nextint(); break; //not returning to point a instead it returns to point b } if (response.equals( n )) { break; } if (response.equals( n )) { break; } } } while (response.equals( n )); system.out.println( final tally ); system.out.println( polly received:\t + n.format(totalpolly) + votes\t + f.format((totalpolly/(totalpolly + totalernest))*100) + %\t + precinctsforpolly + precincts ); system.out.println( ernest received: + n.format(totalernest) + votes\t + f.format((totalernest/(totalpolly + totalernest))*100) + %\t + precinctsforernest + precincts ); system.out.println( \t\t\t\t\t + precinctsties + precincts tied ); } } </code></pre> my guess is that the string response has already been determine to be y at the end of the loop which is why it skips the first step and jumps right back into the loop assuming my answer is already y.,java | |
| add linkedin and twitter in application i need to add twitter and linkedin in my application. bith twitter and linkedin use oauth files so i cannot able to add then only can add one of them. when i try to use same files for both then only linkedin work and get error the token is expire for twitter. can any one know how to add both in same application.,iphone | |
| how to remove keys for list of objects in javascript i have list of objects created like this: <pre><code>for(var i = 0; i < retrievedcontactsarr.length; i++){ for(var k = 0; k < result.length; k++){ if(retrievedcontactsarr[i].contact.phone.cell && retrievedcontactsarr[i].contact.phone.cell === result[k].contact.phone.cell){ retrievedcontactsarr.splice(i 1); } } retrievedcontactsobj[i] = retrievedcontactsarr[i]; } </code></pre> but they are created with keys <code> 0 1 </code> like this: <pre><code>{ 0 : { contact : { address : { home : office : } } name : test3 } 1 : { contact : { address : { home : office : } } name : test2 } } </code></pre> how do i remove the keys for the above object,javascript | |
| expression tokenizer i m attempting to create a tokenizer that reads an expression. when it get the token i print the type and the lexeme which is either a number of an operator. it currently prints each character individually but i need it to print double digit and decimal numbers together. here is my code. <pre><code> public class tokenizer { string type; string lexeme; /** * @param args the command line arguments */ void gettoken(string expression int i) { if (expression.charat(i) == + ) { type = operator ; lexeme = + ; } else if (expression.charat(i) == - ) { type = operator ; lexeme = - ; } else if (expression.charat(i) == * ) { type = operator ; lexeme = * ; } else if (expression.charat(i) == / ) { type = operator ; lexeme = / ; } else if (expression.charat(i) == ) { ; //empty statement. does nothing if the character is white space } else { type = number ; lexeme = character.tostring(expression.charat(i)); } } public static void main(string[] args) { // todo code application logic here string expression = 3+66*2.5 ; tokenizer tokenizer = new tokenizer(); for (int i = 0; i < expression.length(); i++) { tokenizer.gettoken(expression i); system.out.print( type: + tokenizer.type + \t + lexeme: + tokenizer.lexeme + \n ); } } } </code></pre> <h3>sample output - actual</h3> <pre><code>type: number lexeme: 3 type: operator lexeme: + type: number lexeme: 6 type: number lexeme: 6 type: operator lexeme: * type: number lexeme: 2 type: number lexeme: . type: number lexeme: 5 </code></pre> <h3>sample output - expected</h3> <pre><code>type: number lexeme: 3 type: operator lexeme: + type: number lexeme: 66 type: operator lexeme: * type: number lexeme: 2.5 </code></pre>,java | |
| string function to accept the 10 digit mobile no. discards any no. less than 10 digits trims zeroes at the beginning when we enter a no like 00982787878 (having 9 digits and zeros) the output should not be displayed after the zeros are trimmed. <h2>problem:</h2> there is some problem in while loop as the output is a number with just one 0 trimmed. <h2>code:</h2> <pre><code>public static string trimzeros(string mobnumber) { boolean exitloop = true; int count = 0; while (exitloop && mobnumber.substring(count) == 0 ) mobnumber = mobnumber.substring(0); if (mobnumber.charat(count) != 0 ) { exitloop = false; } count++; mobnumber = mobnumber.replaceall( ); mobnumber = mobnumber.length() < 10 mobnumber.substring(mobnumber .length()) : mobnumber.substring(mobnumber.length() - 10); return mobnumber; } </code></pre>,java | |
| what is bus error when it comes in my application bus error is showing and application crash ..i want to know when this error comes . what mean by bus error in my application page on diffrent id i have to calling libxml parsing . in many times calling ones it crash .,iphone | |
| c++ development for iphone i know about <a href= http://www.dragonfiresdk.com/index.htm rel= nofollow noreferrer >http://www.dragonfiresdk.com/index.htm</a> but is there other tools that i can use to write c++ for iphone is there a book maybe,iphone | |
| cannot validate query results <pre><code> query = select serialno from registeredpcs where ipaddress = usercheck = query + %s %fromip #print( query + - +usercheck) print(usercheck) rs = cursor.execute(usercheck) print(rs) row = rs #print(row) #rs = cursor.rowcount() if int(row) == 1: query = select report1 from registeredpcs where serialno = firstreport = query + %s %rs result = cursor.execute(firstreport) print(result) elif int(row) == 0: query_new = select * from registeredpcs cursor.execute(query_new) newrow = cursor.rowcount()+1 print(new row) </code></pre> what i am trying to do here is fetch the <em>serialno</em> values from the db when it matches a certain <em>ipaddress</em>. this query if working fine. as it should the query result set <code>rs</code> is 0. now i am trying to use that value and do something else in the if else construct. basically i am trying to check for unique values in the db based on the <em>ipaddress</em> value. but i am getting this error <pre><code>error: uncaptured python exception closing channel smtpd.smtpchannel connected 192.168.1.2:3630 at 0x2e47c10 (**class typeerror : int object is not callable** [c:\python34\lib\asyncore.py|read|83] [c:\python34\lib\asyncore.py|handle_read_event|442] [c:\python34\lib\asynchat.py|handle_read|171] [c:\python34\lib\smtpd.py|found_terminator|342] [c:/users/dev- p/pycharmprojects/cr server local/lrs|process_message|43]) </code></pre> i know i am making some very basic mistake. i think it s the part in bold thats causing the error. but just can t put my finger on to it. i tried using the <code>rowcount()</code> method didn t help.,python | |
| arraylist gives null. i have written an observer pattern but notification is not working <pre><code>package p; public interface observer { public void update(float interest); } </code></pre> <hr> <pre><code>package p; public interface subject { public void registerobserver(observer obj); public void removeobserver(observer obj); public void notifyobervers(); } </code></pre> <hr> <pre><code>package p; import java.util.arraylist; import java.util.list; public class loan { private float interest; public float getinterest() { return interest; } public void setinterest(float interest) { system.out.println( interest received : notifying listener +interest); this.interest = interest; subject.notifyobervers(); } public list<observer> observerlist = new arraylist<observer>(); subject subject = new subject() { @override public void removeobserver(observer obj) { observerlist.remove(obj); } @override public void registerobserver(observer obj) { observerlist.add(obj); } @override public void notifyobervers() { for (observer obj : observerlist) { obj.update(getinterest()); } } }; } </code></pre> <hr> <pre><code>package p; public class news { observer observer = new observer() { @override public void update(float interest) { system.out.println( news : received interest +interest); } }; } </code></pre> <hr> <pre><code>package p; public class internet { observer observer = new observer() { @override public void update(float interest) { system.out.println( internet : received update on interest : +interest); } }; } </code></pre> <hr> <pre><code>package p; public class observersmain { public static void main(string[] args) { observer observer1 = new internet().observer; observer observer2 = new news().observer; subject loan = new loan().subject; loan.registerobserver(observer1); loan.registerobserver(observer2); new loan().setinterest(6.7f); system.out.println( notified listeners ::: ); } } </code></pre>,java | |
| background streaming effect make other view not performing well i am developing one application that playes audio file and video from server. for that i have used avplayer view controller. but my problem is that when the audio or video song is playing then i go to the next view in that i have song list that is comming from server and displayed in the uitableview but tableview not scrolling well when i scroll it scroll after some times. may be because of the player.,iphone | |
| is there any window management library in javascript i have many browser windows opened from javascript. and i want to manage them - place cascade tile and resize them all at the same time. are there any libraries that can help me,javascript | |
| storing letters in java in a way allowing them to change i am currently making a noughts and crosses game in console and i ve run into a problem since both chars and strings are constant their values can t be changed and i ve therefore searched all over the web for a way to store letters in such a way i can change them. i would really appreciate some help or alternative methods of doing this. thanks.,java | |
| how to invert the entire screen in python as you all know it is april fools today and i am working on this prank. i already asked a question about this but that one is probably deep in the registers by now. so all my research is right here: <a href= https://stackoverflow.com/questions/43114927/keeping-the-script-running-when-closing-the-window-and-opening-a-text-editor-in/43115774#43115774 >keeping the script running when closing the window and opening a text editor in python</a> if you could tell me how to invert the entire screen that would be great! thanks. edit 1: yes i did find python pil but that was only for inverting images i need the entire screen to be inverted. edit 2: guys i am begging you help me it needs to be done today!!! edit 3: i am working with windows 10/8,python | |
| javascript uncaught referenceerror: parameter is not defined i have some javascript code: <pre><code>function addrow(tableid rowid) { var table = document.getelementbyid(tableid); var rowposition = document.getelementbyid(rowid).rowindex; //etc. } </code></pre> but this throws a javascript error <blockquote> uncaught referenceerror: rowid is not defined </blockquote> though looking on firebug i can see that the functions receives a correct row identifier but once the code reaches the second line inside the function the parameter <code>rowid</code> seems unknown. can anyone help,javascript | |
| how to create a list of n dictionaries i m learning python and for practicing purposes i m writing a script that reads a file (containing a graph in <a href= http://en.wikipedia.org/wiki/trivial_graph_format rel= nofollow >trivial graph format</a>) and runs a couple of graph algorithms on the graph. i thought about storing the graph in a list of n dictionaries where n is the number of vertexes and all the edges of a vertex would be stored in a dictionary. i tried this <pre><code>edges = [{} for i in xrange(num_vertexes)] for line in file: args = line.split( ) vertex1 = int(args[0]) vertex2 = int(args[1]) label = int(args[2]) edges[vertex1][vertex2] = label </code></pre> but i m getting this error for the last line: <blockquote> indexerror: list index out of range </blockquote>,python | |
| what happens if we try to use object removed from an nsarray ar nsmutable array i ve searched it alot but most of the times found answer related to releasing objects not for removing object. any help would be highly appreciated.,iphone | |
| uiscrollview issues with uitableview i have one uitableview and uicutsom cell. in that uitableview i populate data using web services. i change background color and font color of cell. when i scroll up and down of that tableview cell background color and label color also change on another cells. <pre><code>- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { static nsstring *simpletableidentifier = @ fieldinventorycell ; // uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:simpletableidentifier]; fieldinventorycell *cell=(fieldinventorycell *)[tableview dequeuereusablecellwithidentifier:simpletableidentifier]; if (cell == nil) { nsarray *nib=[[nsbundle mainbundle] loadnibnamed:@ fieldinventorycell owner:self options:nil]; cell=[nib objectatindex:0]; } nsarray *ar = [[arr objectatindex:indexpath.row]componentsseparatedbystring:@ | ]; cell.status.text=[ar objectatindex:1]; cell.serialnumber.text=[ar objectatindex:0]; cell.date.text=[ar objectatindex:2]; if([cell.serialnumber.text isequaltostring:@ grand total ]) { cell.contentview.backgroundcolor=[uicolor bluecolor]; cell.serialnumber.textcolor=[uicolor whitecolor]; } if ([cell.serialnumber.text isequaltostring:@ inv_fld status total ]) { //cell.contentview.backgroundcolor=[uicolor bluecolor]; cell.serialnumber.textcolor=[uicolor orangecolor]; } return cell; } </code></pre>,iphone | |
| java subclasses constructors with expanding parameters i was wondering if it is possible to expand the constructors parameters for each subclass of the superclass. for example: <pre><code>public class car{ protected string regnum; protected car(string regnum){ this.regnum = regnum; } } public class gascar extends car{ protected double gasemissions; protected gascar(double ge){ gasemissions = ge; } } </code></pre> is there a way where i could use the parameters in the car constructor in the gascar constructor by inheritance,java | |
| a pythonstartup file for a specific directory i ve heard about the pythonstartup file as a way to automatically load specified modules and other code when starting python. but pythonstartup is a global thing for all instances of python. is there such a thing as pythonstartup that i can place in a specific directory and runs only when i start python in that directory,python | |
| combining multiple sets of letters in python i am trying to figure out how to print all the combinations there are for multiple sets of letters without repetition. an example: a b c and x y z the combinations would be: ax ay az bx by bz cx cy cz,python | |
| java adding two arrays of objects done quite a but of digging but cant seem to find an answer. i have 2 object arrays. these objects are session counts which contain data about our servers. each <code>sessioncount</code> object has: <ul> <li>date</li> <li>hour</li> <li>number of connections</li> </ul> so of the two <code>sessioncount</code> arrays i need to match up the objects date and hour then use that to add the number of connections for that time. any ideas,java | |
| separating loading data and ui via threading in objecive c/cocoa i m currently developing an iphone application that loads data via a webservice into a table. right now i have it loading the data and creating/displaying my cells via [tableview cellforrowatindexpath] on two separate threads. my problem is that i need the data to create my cells. so currently i load my data into an array on one thread and lock the cell creation part on the other thread until completion. once completed i go back to my main thread unlock the cell creation part and continue. this actually makes the whole process slower. i m trying to figure out a design so that i can speed up this process. can someone help thank you to all that reply.,iphone | |
| convert attributes of an object to a string in python i have a list of of objects defined by <pre><code>class track(object): def __init__(self title artist album source dest): self.title = title self.artist = artist self.album = album self.source = source self.dest = dest </code></pre> on a gui i have a button that i tied to an event. the output is supposed to print the contents of the list to the command line (not the gui) <pre><code>def onprintbtn(self event): print onprintbtn for track in self.trackolv: print(track) </code></pre> for some reason this ended in a infinite loop of (class <strong>main</strong>.track ) i understand that my problem is that the attributes are as part of the object but what i don t know how to do is to convert them to string values so i can print them out as needed. per request here is the entire code for my program. <pre><code>#boa:frame:frame1 import wx import os import glob import shutil import datetime from mutagen.mp3 import mp3 from mutagen.easyid3 import easyid3 import mutagen.id3 import unicodedata from objectlistview import objectlistview columndefn ######################################################################## class track(object): def __init__(self title artist album source dest): self.title = title self.artist = artist self.album = album self.source = source self.dest = dest def __str__(self): return %s by %s on teh ablum %s \nsource: %s\ndest: %s % \ (self.title self.artist self.album self.source self.dest) def __unicode__(self): return unicode(str(self)) class action(object): def __init__(self timestamp action result): self.timestamp = timestamp self.action = action self.result = result ######################################################################## # non gui ######################################################################## def selectfolder(smessage): print select folder dlg = wx.dirdialog(none message = smessage) if dlg.showmodal() == wx.id_ok: # user has selected something get the path set the window s title to the path filename = dlg.getpath() else: filename = none selected dlg.destroy() return filename def getlist(sourcedir): print getlist listoffiles = none print -list set to none listoffiles = glob.glob(sourcedir + /*.mp3 ) return listoffiles def getlistrecursive(sourcedir): print getlistrecursive listoffiles = none listoffiles = [] print -list set to none for root dirs files in os.walk(sourcedir): for file in files: if file.endswith( .mp3 ): listoffiles.append(os.path.join(root file)) #print listoffiles return listoffiles def strip_accents(s): print strip_accents return .join((c for c in unicodedata.normalize( nfd s) if unicodedata.category(c) != mn )) def replace_all(text): print replace_all + text dictionary = { \\ : : / : ... : : : & : and } print text print text.decode( utf-8 ) text = strip_accents(text.decode( utf-8 )) for i j in dictionary.iteritems(): text = text.replace(i j) return text def gettitle(filename): print gettitle audio = mp3(filename) try: stitle = str(audio[ tit2 ]) except keyerror: stitle = os.path.basename(filename) frame.lvactions.append([datetime.datetime.now() filename title tag does not exist set to filename ]) # todo: offer to set title to filename ## if filename != filename then ## prompt user for action ## offer y/n/a stitle = replace_all(stitle) return stitle def getartist(filename): print get artist audio = mp3(filename) try: sartist = str(audio[ tpe1 ]) except keyerror: sartist = unkown frame.lvactions.append([datetime.datetime.now() filename artist tag does not exist set to unkown ]) #replace all special chars that cause dir path errors sartist = replace_all(sartist) #if name = the beatles change to beatles the if sartist.lower().find( the ) == 0: sartist = sartist.replace( the ) sartist = sartist.replace( the ) sartist = sartist + the return sartist def getablum(filename): print get album audio = mp3(filename) try: salbum = str(audio[ talb ]) except keyerror: salbum = unkown frame.lvactions.append([datetime.datetime.now() filename album tag does not exist set to unkown ]) #replace all special chars that cause dir path error salbum = replace_all(salbum) return salbum ######################################################################## # gui ######################################################################## class mainpanel(wx.panel): #---------------------------------------------------------------------- def __init__(self parent): wx.panel.__init__(self parent=parent id=wx.id_any) self.trackolv = objectlistview(self wx.id_any style=wx.lc_report|wx.sunken_border) self.settracks() # allow the cell values to be edited when double-clicked self.trackolv.celleditmode = objectlistview.celledit_singleclick self.actionsolv = objectlistview(self wx.id_any style=wx.lc_report|wx.sunken_border) self.setactions() # create browse to source button sourcebtn = wx.button(self wx.id_any browse source ) sourcebtn.bind(wx.evt_button self.onbrowsesource) # create source txt box self.txsource = wx.textctrl(self wx.id_any name=u txsource value=u ) # create browse dest button destbtn = wx.button(self wx.id_any browse destination ) destbtn.bind(wx.evt_button self.onbrowsedest) # create dest txt box self.txdest = wx.textctrl(self wx.id_any name=u txdest value=u ) # create move files button movebtn = wx.button(self wx.id_any move files ) movebtn.bind(wx.evt_button self.onmovefiles) # print list button - debug only printbtn = wx.button(self wx.id_any print list ) printbtn.bind(wx.evt_button self.onprintbtn) # create check box to include all sub files self.cbsubfolders = wx.checkbox(self wx.id_any label=u include subfolders name=u cbsubfolders style=0) self.cbsubfolders.setvalue(true) self.cbsubfolders.bind(wx.evt_checkbox self.oncbsubfolderscheckbox) # create check box to repace file names self.cbreplacefilename = wx.checkbox(self wx.id_any label=u replace filename with title tag name=u cbreplacefilename style=0) self.cbreplacefilename.setvalue(false) self.cbreplacefilename.bind(wx.evt_checkbox self.oncbreplacefilenamecheckbox) # create some sizers mainsizer = wx.boxsizer(wx.vertical) feedbacksizer = wx.boxsizer(wx.vertical) sourcesizer = wx.boxsizer(wx.horizontal) btnsizer = wx.boxsizer(wx.horizontal) feedbacksizer.add(self.trackolv 1 wx.all|wx.expand 2) feedbacksizer.add(self.actionsolv 1 wx.all|wx.expand 2) sourcesizer.add(sourcebtn 0 wx.all 2) sourcesizer.add(self.txsource 1 wx.all|wx.expand 2) sourcesizer.add(destbtn 0 wx.all 2) sourcesizer.add(self.txdest 1 wx.all|wx.expand 2) btnsizer.add(printbtn) btnsizer.add(movebtn 0 wx.all 2) btnsizer.add(self.cbsubfolders 0 wx.all 2) btnsizer.add(self.cbreplacefilename 0 wx.all 2) mainsizer.add(feedbacksizer 1 wx.all|wx.expand 2) mainsizer.add(sourcesizer 0 wx.all|wx.expand 2) #mainsizer.add(destsizer 0 wx.all|wx.expand 2) #mainsizer.add(destsizer 0 wx.all|wx.expand 2) mainsizer.add(btnsizer 0 wx.all 2) self.setsizer(mainsizer) mainsizer.fit(self) #---------------------------------------------------------------------- # set the gui column headers and width #---------------------------------------------------------------------- def settracks(self data=none): self.trackolv.setcolumns([ columndefn( title left 100 title ) columndefn( artist left 100 artist ) columndefn( album left 100 album ) columndefn( source left 300 source ) columndefn( destination left 300 dest ) ]) def setactions(self data=none): self.actionsolv.setcolumns([ columndefn( time left 100 timestamp ) columndefn( action left 450 action ) columndefn( result left 450 result ) ]) #---------------------------------------------------------------------- # gui events #----------------------------------------------------------------------- eventlist = [action] #select source of files def onbrowsesource(self event): print onbrowsesource source = selectfolder( select the source directory ) print source self.txsource.setvalue(source) self.anevent = [action(datetime.datetime.now() source set as source dir )] self.actionsolv.addobjects(self.anevent) self.populatelist() #select source of files def onbrowsedest(self event): print onbrowsedest dest = selectfolder( select the destination directory ) print dest self.txdest.setvalue(dest) self.anevent = [action(datetime.datetime.now() dest set as destination dir )] self.actionsolv.addobjects(self.anevent) self.populatelist() def oncbsubfolderscheckbox(self event): print cbsubfolder self.populatelist() def oncbreplacefilenamecheckbox(self event): print cbreplacefilename self.populatelist() def onmovefiles(self event): print onmovefiles self.movefiles() def onprintbtn(self event): print onprintbtn for track in self.trackolv: print (track) #------------- #computations #------------- def definedestfilename(self sfulldestpath): print define dest icopyx = 0 bexists = false sorigname = sfulldestpath #if the file does not exist return original path/filename if os.path.isfile(sfulldestpath) == false: print - + sfulldestpath + is valid return sfulldestpath #add .copyx.mp3 to the end of the file and retest until a new filename is found while bexists == false: sfulldestpath = sorigname icopyx += 1 sfulldestpath = sfulldestpath + .copy + str(icopyx) + .mp3 if os.path.isfile(sfulldestpath) == false: print - + sfulldestpath + is valid self.lvactions.append([datetime.datetime.now() desitnation filename changed since file exists sfulldestpath]) bexists = true #return path/filename.copyx.mp3 return sfulldestpath def populatelist(self): print populatelist ssource = self.txsource.value sdest = self.txdest.value #initalize list to reset all values on any option change self.initiallist = [track] self.trackolv.setobjects(self.initiallist) #create list of files if self.cbsubfolders.value == true: listoffiles = getlistrecursive(ssource) else: listoffiles = getlist(ssource) print listoffiles #prompt if no files detected if listoffiles == []: self.anevent = [action(datetime.datetime.now() parse source for .mp3 files no .mp3 files in source directory )] self.actionsolv.addobjects(self.anevent) #populate list after both source and dest are chosen if len(sdest) > 1 and len(sdest) > 1: print -iterate listoffiles for file in listoffiles: (ssource sfilename) = os.path.split(file) print ssource print sfilename #sfilename = os.path.basename(file) stitle = gettitle(file) try: sartist = getartist(file) except unicodedecodeerror: print unicode sartist = unkown salbum = getablum(file) # make path = sdest + artist + album sdestdir = os.path.join (sdest sartist) sdestdir = os.path.join (sdestdir salbum) #if file exists change destination to *.copyx.mp3 if self.cbreplacefilename.value == true: sdestdir = self.definedestfilename(os.path.join(sdestdir stitle)) else: sdestdir = self.definedestfilename(os.path.join(sdestdir sfilename)) # populate listview with drive contents #ssource = self.txsource.value sdest = self.txdest.value # todo: make source = exact source of track not parent source # todo: seperate dest and filename self.atrack = [track(stitle sartist salbum ssource sdestdir)] self.trackolv.addobjects(self.atrack) self.update() #populate list to later use in move command #self.validatedmove.append([file sdestdir]) print -item added to sourcedest list else: print -list not iterated def movefiles (self): print move files #for track in self.trackolv: # print -iterate sourcedest # #create dir # (sdest filename) = os.path.split(self.trackolv) # print -check dest # # if not os.path.exists(sdest): # print -created dest # os.makedirs(sdest) # self.lvactions.append([datetime.datetime.now() sdest created ]) # self.update() # self.lvactions.ensurevisible(self.lvactions.getitemcount() -1) # # #move file # print -move file # shutil.move(sourcedest[0] sourcedest[1]) # self.lvactions.append([datetime.datetime.now() filename moved ]) # self.update() # self.lvactions.ensurevisible(self.lvactions.getitemcount() -1) # #self.lvactions.append([datetime.datetime.now() move complete success ]) #self.update() #self.lvactions.ensurevisible(self.lvactions.getitemcount() -1) ######################################################################## class mainframe(wx.frame): #---------------------------------------------------------------------- def __init__(self): wx.frame.__init__(self parent=none id=wx.id_any title= mp3 manager size=(1024 768)) #w by h panel = mainpanel(self) ######################################################################## class genapp(wx.app): #---------------------------------------------------------------------- def __init__(self redirect=false filename=none): wx.app.__init__(self redirect filename) #---------------------------------------------------------------------- def oninit(self): # create frame here frame = mainframe() frame.show() return true #---------------------------------------------------------------------- def main(): run the demo app = genapp() app.mainloop() if __name__ == __main__ : main() </code></pre>,python | |
| why is my java method called twice this is the code called twice: <pre><code> public static defaultlistmodel getfriends(int nameoruser) { try { friend[] allfriends = skype.getcontactlist().getallfriends(); system.out.println( skype contact list lenght: + allfriends.length); for (friend friend : allfriends) { string fullname = friend.getfullname(); string username = friend.tostring(); if (fullname.isempty()) { fullname = friend.getid(); } fulllistmodel.addelement(fullname); userlistmodel.addelement(username); } } catch (skypeexception ex) { logger.getlogger(utils.class.getname()).log(level.severe null ex); } if (nameoruser == 0) { return fulllistmodel; } else if (nameoruser == 1) { return userlistmodel; } else { system.out.println( you must specify a valid data type. ); } return null; } </code></pre> the problem is that when i assign that to a jlist the jlist contains the contact list twice :/ hope i explained it well and sorry if my english was bad. edit: here s the calling code: <pre><code>fulllist.setmodel(utils.getfriends(0)); </code></pre>,java | |
| assistance with a simple code for python basically i m working on a python fill in the letters type of game (kind of like hangman). the problem is i can t seem to get the program to record duplicate points. what i mean is: the program asks the user for a word. that word let s say....football is converted into a masked string (ex. <strong><em>*</em>*</strong>) then it continually asks the user for letter inputs. let s say the user enters: f o t b a l and then it fills out the word. for each letter that is guessed correctly the user is awarded one point. but the problem is that for a word like football only 6 points are awarded because some of the letters are duplicates. basically the way i ve coded it each time a correct letter is guessed another point is added on top of the overall total points. is there a better way of doing this that can include the duplicate letters,python | |
| how to create makefile in javascript <blockquote> <strong>possible duplicate:</strong><br> <a href= https://stackoverflow.com/questions/4781372/make-file-for-javascript >make file for javascript</a> </blockquote> actually i am writing some javascript for testing purpose. i want to use multiple javascripts in which functions are defined. is there any way to achieve this i think make file is the way. but i don t know that also. i want to generate make file. can any body suggest me how is to be done,javascript | |
| how to transform tuple of string(object locations) to dictionary of objects in python i would like to transform a tuple: <pre><code>test_classes = ( common.test.testclass ) </code></pre> to <pre><code>test_classes = { test : common.test.testclass } </code></pre> how to make a dictionary is simple but i have a problem with conversion from string to object. could anybody help me please thanks!,python | |
| url in iphone sms content i m developing an iphone application where sms native application should open when the user clicks the button. this is working fine and i am also able to copy the content to clipboard when the user clicks on the button. but i want to provide a url in the sms content which i am copying so that the user click on the url to open it in the browser. can anyone suggest me how to provide clickable url in sms content,iphone | |
| oauth for iphone sdk i have project which wants to login with oauth authentication link the twitter and facebook oauth. is there any library available for oauth in ios for the login purpose. if any one know how to do or where to get this library please help me. i tried a lot to create a library with the help of twitter oauth but no luck.,iphone | |
| array elements being cleared after pushing from json file i have a function that reads integers from a json file and returns an array of those numbers. when i print the data it s all there. however when i check the length of the array before returning i get a size of 0. why <pre><code>function readjson() { var arr = []; $.getjson( foo.json function(obj) { for(i = 0; i < obj.length; i++) { arr.push(obj[i][ _bar ]); // prints: 1 2 3 4 5 console.log(obj[i][ _bar ]); } }); // prints 0 console.log(arr.length); return arr; } </code></pre>,javascript | |
| how can i used the “pefile.py” to get file(.exe) version i want to used python to get the executed file version and i know the <a href= http://code.google.com/p/pefile/ rel= nofollow noreferrer >pefile.py</a> how to used it to do this notes: the executed file may be not completely.,python | |
| how to store/retrieve application data incase application deleted accidentally i am having an application in which i am having sqlite database too ..if i delete that application accidentally. is there any way to get back the same application with the same database. or is there any way to keep database alone in a separate place inside iphone memory so that we can recover after application delete if needed. please tell me how to achieve the above . regards v.k.,iphone | |
| how to give sketch effect on image in iphone i am implementing an iphone application in which i have implemented the following functionalities: <ol> <li>select photo</li> <li>capture photo</li> <li>now i want to give a sketch effect to that photo like <a href= http://itunes.apple.com/in/app/photo-to-sketch/id421785759 mt=8 rel= nofollow >this one.</a></li> </ol> how could i do this,iphone | |
| passing option constants as arguments to a class i have a python class that takes an arguments to set the state of an object. this argument must be one option in a list of available options; for example a traffic light can either be red green or orange. i have two approaches to handle this problem. i can use a string to set the state but then i ll have to do additional error checking and it is unclear without looking at the code what states are available. alternatively i can create a class that acts as an enum. which of these methods (or what other method) should i use example with strings: <pre><code>class light(object): def __init__(self color): self.color = color def turn_on(self): if self.color == red : self.turn_on_red_light() if self.color == green : self.turn_on_green_light() if self.color == orange : self.turn_on_orange_light() def turn_on_red_light(): # do stuff return def turn_on_green_light(): # do stuff return def turn_on_orange_light(): # do stuff return light = light( red ) light.turn_on() </code></pre> alternative using simple enum : <pre><code>class colors(object): red green orange = range(3) class light(object): def __init__(self color): self.color = color def turn_on(self): if self.color == colors.red: self.turn_on_red_light() # as above if self.color == colors.green: self.turn_on_green_light() # as above if self.color == colors.orange: self.turn_on_orange_light() # as above light = light(colors.red) light.turn_on() </code></pre> maybe this is not the best example as you can just call <code>light.turn_on_red_light()</code> but then that logic to decide what function to call must sit somewhere else. let s pretend that is not an option. i come across this situation often. frequently i use it to define settings within the class. i d be interested to know what is the preferred method in python or any other ways it can be improved,python | |
| how to make xcode generated coredata model class to use nsinteger for int32 column seems silly to me that it generates nsnumber when i specify the column as int. this makes calculations and updates tedius... e.g. x = [nsnumber numberwithinteger:([x intvalue] + 1)]; there is the use primitive types checkbox but it uses char array instead of nsstring which is not what i want. so is it possible to tell it to generate nsinteger if if i manually change the code to use nsinteger will it work,iphone | |
| trying to start javascript koans - can t even load the first codeset here is my error: <pre><code>jasmine.expectationresult@file:///e:/dropbox/---%20javascript%20---/javascript-koans-master/lib/jasmine/jasmine.js:94 @file:///e:/dropbox/---%20javascript%20---/javascript-koans-master/koans/aboutexpects.js:5 </code></pre> so is the problem that i have spaces in my filepath or is it those colons i see after each .js file the js files definitely don t have those colons when i look in the directories in github. <a href= https://github.com/mrdavidlaing/javascript-koans/tree/master/lib/jasmine rel= nofollow >https://github.com/mrdavidlaing/javascript-koans/tree/master/lib/jasmine</a>,javascript | |
| java println method error i am trying to print times that it takes to do certain methods. i use <blockquote> double t0 = 0.01 * system.currenttimemillis(); i have 3 times like that one. and when i print it like this: </blockquote> <pre><code>system.out.println( %7d %10.7f %10.7f amount (t1 - t0) (t2 - t1)); </code></pre> i get an error: <blockquote> no suitable method found for println(string int double double) </blockquote> why is that where does that string parameter come from,java | |
| cm to inch converting program python hello i am trying to make a converting program but i can t get it to work i am going to convert multiply different things but i start with cm to inch. i get error typeerror: unsupported operand type(s) for /: str and float . here is some of the code: <pre><code> print( press the number of the one you want to convert: ) number = input() inch = float(2.54) if number == 1 : print( how many inch ) print( there are %s .format(number / inch)) here is the whole code: print( welcome to the converting program ) print( what of these do you want to convert ) print( \nhow many centimeters in inches 1 \nhow many milliliters in a pint 2 \nhow many acres in a square-mile 3 \nhow many pounds in a metric ton 4 \nhow many calories in a btu 5 ) print( press the number of the one you want to convert: ) number = float(input()) inch = float(2.54) if number == 1 : print( how many inch ) print( there are {0} .format(number / inch)) elif number == 2 : print( millimeters ) elif number == 3 : print( acres ) elif number == 4 : print( pounds ) elif number == 5 : print( calories ) </code></pre>,python | |
| object methods of same class have same id <pre><code>class parent(object): @classmethod def a_class_method(cls): print in class method %s % cls @staticmethod def a_static_method(): print static method def useless_func(self): pass p1 p2 = parent() parent() id(p1) == id(p2) // false id(p1.useless_func) == id(p2.useless_func) // true </code></pre> in the above code i dont understand why is the useless_func has same id when it belongs to two different objects,python | |
| how can i split a long function into separate steps while maintaining the relationship between said steps i have a very long function <code>func</code> which takes a browser handle and performs a bunch of requests and reads a bunch of responses in a specific order: <pre><code>def func(browser): # make sure we are logged in otherwise log in # make request to /search and check that the page has loaded # fill form in /search and submit it # read table of response and return the result as list of objects </code></pre> each operation require a large amount of code due to the complexity of the dom and they tend to grow really fast. what would be the best way to refactor this function into smaller components so that the following properties still hold: <ul> <li>the execution flow of the operations and/or their preconditions is guaranteed just like in the current version</li> <li>the preconditions are not checked with asserts against the state as this is a very costly operation</li> <li><code>func</code> can be called multiple times on the browser</li> </ul>,python | |
| javascript getting an array from an array in an object i have an object <code>myobject</code> and one of its properties <code>itemids</code> is an array of ints. i want to get a new array <code>pageitemids</code> that contains only part of the ints. it s for a pager; i pass in the page number <code>pagenumber</code> and i get the ids of the items on the page. suppose the page size is 20 items. this is what i tried. it doesn t work because js works with references so i end up changing the array of the object. <pre class= lang-js prettyprint-override ><code>pageitemids = myobject.itemsid; pageitemids = pageitemids.splice(pagenumber * 20 20); </code></pre> and instead of getting the itemids in the page i end up with the itemids not in the page. i know i m not that far off but if you can help that d be nice. thanks. edit: when i do <pre><code>pageitemids = pageitemids.slice((pagenumber -1) * 20 20); </code></pre> it works for page 1 but for every other page it returns an empty array. ok i got it nevermind. <pre><code> pageitemids = pageitemids.slice(pagenumber * 20 pagenumber * 20); </code></pre>,javascript | |
| return a list by reading a text file i am reading a text file separated by space the file looks like: first line:hello 2928977 [1.2 9.7] second line: apple 6723547 [8.2 3.1] .... i want to return a list like[(hello 1.2 9.7) (apple 8.2 3.1) ...] how do i do this i know the first step is to set an empty list and then do <pre><code> output =[] inputfile = open( text.txt r ) for eachline in inputfile: l=line.strip() s=l.split( ) output.append((s[0] float(s[2][0]) float(s[2][1])) return output </code></pre> but this doesn t work... it says invalid syntax....can someone help me also i tried with another file with this method but it says strings cannot be converted into float... i can t get this working i would really appreaciate your help!thanks!!!!!!!,python | |
| prototype library use of !! operator <blockquote> <strong>possible duplicates:</strong><br> <a href= https://stackoverflow.com/questions/3059546/what-does-this-expression-mean >what does this expression mean “!!”</a><br> <a href= https://stackoverflow.com/questions/1406604/what-does-the-operator-double-exclamation-point-mean-in-javascript >what does the !! operator (double exclamation point) mean in javascript </a> </blockquote> here is a snippet from prototype javascript library : <pre><code> browser: (function(){ var ua = navigator.useragent; var isopera = object.prototype.tostring.call(window.opera) == [object opera] ; return { ie: !!window.attachevent && !isopera opera: isopera webkit: ua.indexof( applewebkit/ ) > -1 gecko: ua.indexof( gecko ) > -1 && ua.indexof( khtml ) === -1 mobilesafari: /apple.*mobile/.test(ua) } })() </code></pre> this is all good and i understand the objective of creating a browser object. one thing that caught my eye and i haven t been able to figure out is the use of double not operator <strong>!!</strong> in the ie property. if you read through the code you will find it at many other places. i dont understand whats the difference between <code>!!window.attachevent</code> and using just <code>window.attachevent</code>. is it just a convention or is there more to it that s not obvious,javascript | |
| how can i make my python script run forever i have a python script (excerpt shown below) that reads a sensor value. unfortunately it runs only for 5 - 60 minutes at a time and then suddenly stops. is there a way i can efficiently make this run forever is there any reason why a python script like this couldn t run forever on a raspberry pi or does python automatically limit the duration of a script <pre><code> while true: current_reading = readadc(current_sensor spiclk spimosi spimiso spics) current_sensed = (1000.0 * (0.0252 * (current_reading - 492.0))) - correction_factor values.append(current_sensed) if len(values) > 40: values.pop(0) if reading_number > 500: reading_number = 0 reading_number = reading_number + 1 if ( reading_number == 500 ): actual_current = round((sum(values)/len(values)) 1) # open up a cosm feed pac = eeml.datastream.cosm(api_url api_key) #send data pac.update([eeml.data(0 actual_current)]) # send data to cosm pac.put() </code></pre>,python | |
| effect of having use strict ; in file scope but not at the top i understand it shouldn t be done take this as an academic question.<br/> if i was to say concatenate several javascript files some with <code> use strict ;</code> at the top and some without what would be the outcome i know that if you put the phrase at the top of the file it enables strict mode for the entire file and if it is at the start of a function it is scoped to that function.<br/> but what if the first <code> use strict ;</code> is mid-way down i guess you can extrapolate this quest to function-scoped uses as well. will it; <ul> <li>have no effect </li> <li>enable strict mode for the whole file or</li> <li>somehow enable strict mode for only the remaining length of the code </li> </ul> e.g. <pre class= lang-js prettyprint-override ><code>/*from file1.js*/ function bob() { willthiserror = because of use strict mode below ; } /*from file2.js*/ use strict ; function bob2() { var thisauthor = likes to enable strict mode ; } </code></pre> or <pre class= lang-js prettyprint-override ><code>//midway through function function test() { willthiserror = ; use strict ; var orwillit = have no effect ; } </code></pre> i guess i could just test it myself but i m interested in a spec reference or something and not to get caught up in browsers individual interpretations on strict mode declaration.,javascript | |
| iphone: find phone number in text what i need is find in text phones numbers and make it colored and clickable and when click on that it s should call by this number...is there on iphone ready solution for that or i should write regular expression to find phones numbers than make it colored an clickable the reason i m asking is that android have ready method for that and i don t need to do anything... thanks...,iphone | |
| is calling buffer.flip() twice in a row problematic flip sets limit to position and then position to 0. if you call flip twice does limit get set to 0 sometimes i don t know whether a method that takes a buffer should be responsible for flipping the buffer or should the method caller do it. i would like to be able to call .flip in the method just incase the methodcaller did not do it. but does this cause a problem,java | |
| selecting number of id s using loop in javascript i have 5 different id s as below: <pre><code><div id = box1 ></div> <div id = box2 ></div> <div id = box3 ></div> <div id = box4 ></div> <div id = box5 ></div> </code></pre> is there any way to call each id using for loop in javascript <pre><code>for(int i=0; i<5; i++){ //i want to call those ids each at a time. at first box1 then box2... } </code></pre>,javascript | |
| what happens if we split by a delimiter yet have multiple of those delimiters in a row say i have a string <code> word1 word2 word3 word4 etc </code> however instead of there being only one space between the words the amount of spaces is random greater than 1. how does <code>split( )</code> work in such cases,python | |
| decompose a string into array of long or list of long without loop in java i want to decompose a string array into long array or list. i don t want to use loop. is there any java method to do this.,java | |
| how to wait indefinitely for the dom load the function: <pre><code>window.addeventlistener( domcontentloaded function(){}); </code></pre> or <pre><code>window.addeventlistener( load function(){}); </code></pre> it allows me to do anything as fast as it loads the dom with some particularities between both methods. this is <code> as soon as </code> but how can i wait indefinitely to load the dom and just load the dom execute the function let me explain: imagine i have a function anyone. <pre><code>cube cube = n => math.pow (n 3); if (document.readystate === complete ) cube (3); </code></pre> suppose the cube function is fundamental in my code. but if the dom has not loaded the function will not have been executed. so how can i wait indefinitely until the dom loads and postpone another function which acts in response to this main function (cube) so if my script reached that point and the dom did not load all those functions would not have any value. my focus instead of <blockquote> if this happens do this </blockquote> is: <blockquote> wait for this to happen and do this </blockquote>,javascript | |
| assigning functions as attributes of an object then calling without the implied self arguement python allows you to assign a pre-defined function to a class as an attribute such as <pre><code>def fish_slap(fish): # do something class dance(object): dance_move=fish_slap </code></pre> however if we try do say <pre><code>d=dance() d.dance_move( halibut ) </code></pre> we get the get the following error <pre><code>typeerror: fish_slap() takes exactly 1 arguement (2 given) </code></pre> python seems to be viewing this as a object method and providing the implied self argument. fair enough it seems i ve just learned that assigning a function as an attribute in this way is equivalent to defining the function directly within the class. i can see that this is a useful feature. however in this case this is not what i want. in my application i have statistical models encoded as different classes which also have their own train methods for training the model parameters against supplied data. in order to do this an objective function that you wish to minimize (or maximize) the value of needs to be supplied. an example simple objective function is say <pre><code>def rmse(predicted observed): root mean squared error return sp.sqrt(sp.mean((predicted-observed)**2)) </code></pre> where scipy has been imported as sp. these objective functions are defined in a single .py file and used throughout my code and naturally exists as standalone functions rather than as class methods with the implied self argument. i want to be able to set the desired objective function as an attribute so that any subsequent work a model object does uses that function for instance <pre><code>some_model=somemodel(initial_parameter_values_guess) some_model.objective_function = rmse some_model.train(training_data) predictions_rmse = some_model.predict() some_mode.objective_function = mae predictions_mae = some_model.predict() </code></pre> in this example is seems i could just pass the objective function as an argument to train however in my application there is a lot more one would want to do and it seems to make more sense to be able to set/get the objective function rather than repeatedly providing it as an argument. there are any number of workarounds to achieve this basic behavior but what is the most pthonic approach note that my current code is python2 and python3 compliant. if there are version specific solutions please point that out. i am running with python2 in order to be able to use matplotlib however i am trying to ensure the code is python3 compatible apart from that module.,python | |
| pulsating blue circle and dot in mapkit - iphone sdk how can i add the pulsating blue circle in my gps application. currently i am fetching my current location by cclocationmanager. i am using mapview.showsuserlocation = true but this only display a pin at my current location. how can i get that blue circle as in the default maps app. update: many app does this. for example - realtor.com thanks,iphone | |
| javascript error on href getelementbyid when null i have a popup that lets the user change a href if set or not. if not set i display optional web link as field title. however i m getting a javascript error on the if line that href is null. how can i get href or test it without the error getting in the way in this application href will be null at times so i need my script to deal with it somehow. <pre><code>if (document.getelementbyid( sidebarhref- +id).href == ) { var href = document.getelementbyid( sidebarhref- +id).href; } else { var href = optional web link ; } </code></pre>,javascript | |
| python simple for loop issue currently learning python. normally a c++ guy. <pre><code>if wallpaper == y : charge = (70) print ( you would be charged £70 ) wallpaperlist.append(charge) elif wallpaper == n : charge = (0) else: wallpaper () surfacearea totalpapers = 0 for item in range (len(wallpaperlist)): totalpapers += wallpaperlist[item] </code></pre> i am trying do a for loop for the if statement. in c++ this will just be a simple <pre><code>for (i=0; i<prooms; i++){ } </code></pre> i am trying to add the above code in a for loop but i seem to fail. thanks,python | |
| error in string index out of range: maf file to fasta file context: i am trying to convert a maf file (multiple alignment file) to individual fasta file. i keep running into the same error that i m not sure how to fix and this may be because i m relatively new to python. my code is below: <pre><code>open_file = open( c:/users/danielle/desktop/maf_file.maf r ) for record in open_file: print(record[2:7]) if (record[2] == z ): new_file = open(record[2:7]+ .fasta w ) header = > +record[2:7]+ \n sequence = record[46:len(record)] new_file.write(header) new_file.write(sequence) new_file.close() else: print( not correct isolate. ) open_file.close() </code></pre> the error i get is: <pre><code>indexerror traceback (most recent call last) 2 for record in open_file: 3 print(record[2:7]) ----> 4 if (record[2] == z ): 5 new_file = open(record[2:7]+ .fasta w ) 6 header = > +record[2:7]+ \n indexerror: string index out of range </code></pre> if i remove the if else statement it works as i expect but i would like to filter for specific species that start with the character z. if anyone could help explain why i can t select for only strings that start with the character z this way that would be great! thanks in advance.,python | |
| ios sdk: how to get the date out of a uidatepicker i need to retrieve the date from a uidatepicker (preferably i would also like to be specify the format as well. for example mmdd would output the string 1209. any string that reasonably parsed would work as well. thanks in advance.,iphone | |
| how to add native library .so file in java netbeans how to link native library .so file in netbeans exception in thread main java.lang.unsatisfiedlinkerror: no lib in java.library.path,java | |
| javascript onclick even on a div not working i have a div and when a user clicks on it using the <code>onclick</code> event i m calling a function: <pre><code> function test(a) { alert(a); } <div onclick= javascript:test( zaswde ); >sdfasdasdadasdasds</div> </code></pre> <strong>update</strong> <pre><code> <ul> <li> <div> <div onclick= javascript:alert( v ); ></div> </div> <div ></div> </li> </ul> </code></pre> can t i use <code>onclick</code> on the div element ,javascript | |
| java: throws runtimeexception how is the below one correct i expected compiler to tell me to use <code>throws exception</code> or <code>throws runtimeexception</code> <pre><code>public void method1() throws nullpointerexception { throw new runtimeexception(); } </code></pre> why i think its not correct -> bcoz a npe is a rte but a rte is not a npe how is this correct i expected compiler to tell me to use <code>throws exception</code> or <code>throws runtimeexception</code> or <code>throws numberformatexception</code> <pre><code>public void method2() throws nullpointerexception { throw new numberformatexception(); } public void method3() throws exception { // this is fine as expected throw new runtimeexception(); } public void method4() throws runtimeexception { // this is fine as expected throw new nullpointerexception(); } public void method5() throws exception { // this is fine as expected throw new nullpointerexception(); } </code></pre> <strong>answer:</strong> for rte even if u don t add <code>throws</code> clause to the method compiler won t say anything <pre><code>public void method6() { // no compile time errors!! throw new nullpointerexception(); } </code></pre> but when we explicitly say that <code>throw new nullpointerexception();</code> why compiler ignores it it is same as <code>throw new sqlexception()</code>; it is not thrown on runtime say some object was evaluated to null and invoked an action on that null object. normally a function must declare all the exceptions that it can throw but rte s is bypassing it! rte s are unchecked exceptions. but when you say throw new rte still unchecked ! <strong>question</strong> - isn t this a flaw or please correct me in understanding why is it like that <ul> <li><strong>update:</strong></li> </ul> please note that this question is <strong>not about difference between</strong> checked exception and unchecked exception. the question is not about difference between any type of exception or error. the question is why an explicitly marked runtimeexception is not handled or left without forcing the compiler to handle it. eg: <pre><code>public void methoda() { // methoda is not forced to handle the exception. methodb(); } public void methodb() throws runtimeexception { } </code></pre>,java | |
| calculating the average number in a nesting loop java does anyone knows how to calculate the average in a loop. every time i calculated the average i received 0 or 1. i know that i need use average = (sum) / (salary_annually); but i can t get it to work. thanks in advance. <pre><code> import java.util.scanner; public class midterm { public static void main(string args[]) { scanner kb = new scanner(system.in); int max = integer.min_value; int min = integer.max_value; int sum = 0; int average=0; int count = 0; int salary_annually = 0; for(int employee =1; employee <= 2; employee++) { system.out.println( employee: + employee); for(int year=1; year <= 2; year++) { system.out.println( please enter the salary for year: + year); salary_annually = kb.nextint(); sum += salary_annually ; if (min >= salary_annually) { min = salary_annually; } if (max <=salary_annually) { max = salary_annually; } average = (sum) / (salary_annually); } system.out.println( the average is + average); system.out.println( the higher number + max); system.out.println( the the lowest number + min); } } } </code></pre>,java | |
| how to print all the list values in the mail body without square bracket in java here is my code : inside the sendmail() method am not able to get all the file names without square bracket. please help me to solve this. here finalvalue is an arraylist. if i use .get() am getting outofboundexception. <pre><code>simpledateformat sdf1 = new simpledateformat( dd mmm yyyy z ); string lastmodifieddate=sdf1.format(file1.lastmodified()); dateformat formatter = new simpledateformat( dd mmm yyyy z ); formatter.settimezone(timezone.gettimezone( cet )); if(sdf1.format(file1.lastmodified()).compareto(formatter.format(date))==0){ strfilenamemodifieddate=filesinsidefolder+ : +lastmodifieddate; system.out.println(strfilenamemodifieddate); list.add(strfilenamemodifieddate); system.out.println( final: +list); totalelements = list.size(); system.out.println( total elements: +totalelements); for(index=0; index <totalelements; index++) { //system.out.println(index); system.out.println( currently modified files1: +list.get(index)); finalvalue.add(path2.get(index)); } message.settext(config_applbody+ \n +finalvalue+ \n\n + config_applsig); </code></pre>,java | |
| securing iphone + web app i have an iphone app that retrieves and send data to a server that uses python. what measures could i take in order to prevent security risks i an not handling extremely sensitive data but i wouldn t want people sniffing the contents. is using ssl enough to prevent most risks thanks,iphone | |
| java-what is the best way to check if a string contain alphanumeric characters or not i am new to regular expression can any one tell me what is the best option to check if a string is containing only alphanumeric characters and why <code>value.matches( ^[a-za-z0-9]*$ );</code> or <code>value.matches( \\w+ );</code>,java | |
| python values in lists i am using python 3.0 to write a program. in this program i deal a lot with lists which i haven t used very much in python. i am trying to write several if statements about these lists and i would like to know how to look at just a specific value in the list. i also would like to be informed of how one would find the placement of a value in the list and input that in an if statement. here is some code to better explain that: <pre><code>count = list.count(1) if count > 1 (this is where i would like to have it look at where the 1 is that the count is finding) </code></pre> thank you!,python | |
| javascript beginner : do while loop for repeat i have no idea why the do while code cannot repeat ask the question...and after i put the do while ...there is no function at all... <pre class= lang-js prettyprint-override ><code><script type= text/javascript > var done; do{ var num = prompt( enter number 0 ) //prompt user to enter the number number = parseint(num); //parse the num to number var i; document.write( <table border= 1 cellspacing= 0 > ); for(i=1;i<=12;i++) { document.write( <tr><td> + i + x + number + = + number*i + </td></tr> ); } document.write( </table> ); }while(window.confirm( do you want to enter another number to show another multiplication table ) </script> </code></pre>,javascript | |
| uipickerview on uiscrollview in my app i have a uipickerview on uiscrollview. when i check the delaycontenttouches in ib the uiscrollview scrolls but uipickerview do not scrolls smoothly. and if i uncheck it then my uipickerview scrolls smoothly but uiscrollview do not. uiscrollview is added as subview to my view. all controls are on the uiscrollview. i am unable to figure it out why its behaving like this. please guide me. is i am missing something or doing wrong thanks panache.,iphone | |
| can anybody tell me the procedure of debugging in java i am new to the java can anybody tell me the debugging procedure in eclipse.. i.e. how to perform a debugging on a program.. thanks in adavance..,java | |
| after addition two variables in javascript returning some garbage values hi i have two variables in js like: <pre><code>var a = 223620.42 var b = 1200.1234 </code></pre> i am using calculation like: <pre><code>var c = parsefloat(a) + parsefloat(b); </code></pre> so the result should be = <code>224820.5434</code> but it returning <code>224820.54340000002</code> please suggest me what i am doing wrong here. thanks in advance,javascript | |
| reduce image size without changing the dimensions programmatically in iphone does any one how to reduce image size without changing the dimensions of that image programmaticallyin iphone,iphone | |
| "how can a read only property(element.classlist) can be modified or assigned to some other value in javascript <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>window.addeventlistener( keydown function(e) { | |
| const key= document.queryselector(`div[data-key= ${e.keycode} ]`); | |
| console.log(key.classname); | |
| console.log(key.classlist); | |
| key.classlist=[ ajay dish ]; | |
| }</code></pre> | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><div data-key= 65 class= key ajay > | |
| <kbd>a</kbd> | |
| </div></code></pre> | |
| </div> | |
| </div> | |
| <img src= https://i.stack.imgur.com/sgp4m.jpg alt= enter image description here > above is a screenshot of chrome devtools with values modified. i read on <a href= https://developer.mozilla.org/en/docs/web/api/element/classlist rel= nofollow noreferrer >mdn</a> that <code>element.classlist</code> is read only property but can be modified by <code>add()</code> etc. i assigned it to some other array and that is working too. in other cases whenever i tried to modify/assign read only property it always gave <code>typeerror</code>.",javascript | |
| event listener not responding - javascript i am trying to write a quiz in pure javascript that loads new questions from an array and fills a table when the user clicks next. a seemingly simple problem i have is that i cannot get an event listener to work when the user clicks the next button. on jsfiddle it works but it won t work on my end and i have no idea why. just as a test i have it alerting if the button is pressed. i have also tested multiple different ways of checking if the document has loaded before executing to no avail. html <pre><code><body> <table class= center > <tr> <th id= question colspan= 2 >question</th> <td colspan= 2 ></td> </tr> <tr> <td id= answer0 >choice 1</td> <td><input id= radio0 type= radio name=que_1 value= 1 required/></td> </tr> <tr> <td id= answer1 >choice 2</td> <td><input id= radio01 type= radio name=que_1 value= 1 /></td> </tr> <tr> <td id= answer2 >choice 3</td> <td><input id= radio02 type= radio name=que_1 value= 1 /></td> </tr> <tr> <td id= answer3 >choice 4</td> <td><input id= radio03 type= radio name=que_1 value= 1 /></td> </tr> </table> <div> <input type= button id= next value= next > </div> </body> </code></pre> javscript <pre><code>document.getelementbyid( next ).addeventlistener( click function() { alert( works ); }); </code></pre> thank you in advanced.,javascript | |
| how to kill setinterval() function in javascript i have this finction: <pre><code> var msec = 100; setinterval(function () { if (childnodedocument.readystate == complete ) { parent.parent.mapframe.hidemodal; alert( complete ); clearinterval(); } } msec); </code></pre> when this condition is satisfied: <pre><code>childnodedocument.readystate == complete </code></pre> i want to stop executing setinterval(). but the way i am doing above not working. any idea what i am missing,javascript | |
| is it the best way to compare python objects considering these classes <pre><code>class foo(object): def __init__(self owner): self.owner = owner self.a = none self.b = [] object = foo(mike) </code></pre> each hour i need to check if foo is updated (object.a or object.b has changed) how can i do do i need to create a new object object2=foo(mike) and parse attribute to compare with object put the difference into a list or is there a pythonic way to do it if a create two objects parse them to build 2 lists and compare them is a good idea,python | |
| weakreference symbol cannot be found already import the weakreference but the compiler cannot find the symbol what wrong there a memory leak in dumpreceiver.java i thought weakreference might free after used <pre><code>import java.lang.ref.weakreference; receiver r = new dumpreceiver(system.out); weakreference<receiver> wr = new weakreference<dumpreceiver>(r); midiindump.java:64: cannot find symbol symbol : constructor weakreference(javax.sound.midi.receiver) location: class java.lang.ref.weakreference<dumpreceiver> weakreference<receiver> wr = new weakreference<dumpreceiver>(r); ^ </code></pre>,java | |
| javascript how `length` is implemented you know that in javascript you can access the length of an text/array with length property: <pre><code>var obj = [ robert smith john mary susan ]; // obj.length returns 5; </code></pre> i want to know how this is implemented. does javascript calculates the length property when it is called or it is just a static property which is changed whenever the array is changed. my question is asked due to the following confusion in best-practices with javascript: <pre><code>for(var i = 0; i < obj.length; i++) { } </code></pre> <strong>my problem:</strong> if it is a static property then accessing the length property in each iteration is nothing to be concerned but if it is calculated on each iteration then it cost some memory. i have read the following definition given by ecmascript but it doesn t give any clue on how it is implemented. i m afraid it might give a whole instance of array with the length property calculated in run-time that if turns out to be true then the above <code>for()</code> is dangerous to memory and instead the following should be used: <pre><code>var count = obj.length; for(var i = 0; i < count; i++) { } </code></pre>,javascript | |
| how do i run iometer using python i am trying to setup test automation. i would like to run several different sets of iometer tests without individually hitting go for all of them. how do i do that using python if you know a different method that would work too. i just have the rest of the test automation setup with python. side note: can iometer record data every 5 seconds for a 30min test,python | |
| js - find x y of middle of black square in image i have a bunch of images like this one: <a href= https://i.imgur.com/kw8uaa4.png rel= nofollow noreferrer >http://i.imgur.com/kw8uaa4.png</a> i need to find the x y of the middle of the dark square. i currently have the following code: <a href= https://jsfiddle.net/brampower/tw08fdhf/ rel= nofollow noreferrer >https://jsfiddle.net/brampower/tw08fdhf/</a> <pre><code>function rgbtohsl(r g b) { r /= 255 g /= 255 b /= 255; var max = math.max(r g b) min = math.min(r g b); var h s l = (max + min) / 2; if (max == min) { h = s = 0; // achromatic } else { var d = max - min; s = l > 0.5 d / (2 - max - min) : d / (max + min); switch (max) { case r: h = (g - b) / d + (g < b 6 : 0); break; case g: h = (b - r) / d + 2; break; case b: h = (r - g) / d + 4; break; } h /= 6; } return ({ h: h s: s l: l }); } function solve_darkest(url callback) { var image = new image(); image.crossorigin = anonymous ; image.src = url; image.onload = function(){ var canvas = document.createelement( canvas ); var width = image.width; var height = image.height; canvas.width = width; canvas.height = height; var context = canvas.getcontext( 2d ); context.drawimage(image 0 0); document.body.appendchild(canvas); var imgdata = context.getimagedata(0 0 width height); var pixel = 0; var darkest_pixel_lightness = 100; var darkest_pixel_location = 0; for (var i = 0; i < imgdata.data.length; i += 4 pixel++) { red = imgdata.data[i + 0]; green = imgdata.data[i + 1]; blue = imgdata.data[i + 2]; alpha = imgdata.data[i + 3]; if (alpha < 230) { continue; } console.log(math.floor(pixel / width) + i % width); var hsl = rgbtohsl(red green blue); var lightness = hsl.l; if (lightness < darkest_pixel_lightness) { darkest_pixel_lightness = lightness; darkest_pixel_location = pixel; } } var y = math.floor(darkest_pixel_location / width); var x = darkest_pixel_location % width; callback(x y); }; } image_url = http://i.imgur.com/kw8uaa4.png ; solve_darkest(image_url function(x y) { settimeout(function() { alert( x: +x+ y: +y); } 100); }); </code></pre> but it is not giving me the results i am expecting. it loops through all the pixels and then returns the x and y of the darkest pixel. however it appears that the darkest pixel doesn t reside in the dark square area. what can i do to make it return the x y of the middle of the darker square,javascript | |
| how can i move continuos enemy sprite top to bottom here is some problem which i can not understand... i want to move one enemy sprite top to bottom but enemy sprite is in different class and can not move it. here is code of add sprite in gamescene through enemyscene this is code of enemy.m <pre><code>#import enemy.h #import gamescene.h @implementation enemy @synthesize thegame newsprite lasttimefired firingspeed fireinterval movementspeed launched hp maxhp; -(id)initwithgame:(gamelayer *)game { self=[super init]; if(self !=nil) { cgsize size=[[ccdirector shareddirector]winsize]; self.thegame=game; self.lasttimefired=0; nslog(@ enemy init ); int random=arc4random()%3+1; newsprite=[ccsprite spritewithfile:[nsstring stringwithformat:@ enemy%d.png random]]; newsprite.position=ccp(100 200); [thegame addchild:newsprite]; switch (random) { case 1: movementspeed=5; fireinterval=-1; break; case 2: movementspeed=10; fireinterval=-1; break; case 3: movementspeed=7; fireinterval=-1; break; case 4: movementspeed=3; fireinterval=-1; break; default: movementspeed=5; fireinterval=-1; break; } } return self; } </code></pre> and i want to move this enemy sprite into gamescene layer and here is the code gamescene.m <pre><code>#import gamescene.h #import hero.h #import enemy.h #define starting_lives 3; @implementation gamescene -(id) init { self =[super init]; if(self !=nil) { [self addchild:[gamelayer node]]; } return self; } -(void) dealloc { [super dealloc]; } @end @implementation gamelayer -(id)init { if(self=[super init]) { hero *hero=[[hero alloc]initwithgame:self]; enemy *e=[[enemy alloc]initwithgame:self]; lasttimeenemylaunched=0; enemyinterval=20; lives=3; [self schedule:@selector(dothis)]; nslog(@ after schedule ); } return self; } -(void)dothis { enemy *e; [e update]; } @end </code></pre> please help me i am new in cocos2d game development... when i am run this code in simulator than it gives on error this code gives exc_bad_access <pre><code> -(void) update: (cctime) dt { if( elapsed == - 1) elapsed = 0; else elapsed += dt; if( elapsed >= interval ) { impmethod(target selector elapsed); //this code gives exc_bad_access elapsed = 0; } } </code></pre> please help me.... thanks,iphone | |
| iphone: how to find out which object was touched on my uiviewcontroller i have different uiviews and some of them are my custom uiviews. how to know which uiview was touched my custom or not,iphone | |
| how to create .ipa file & how to install .ipa in iphone/ipad i have developed a mobile native app using jquerymobile. now i want to deploy that app on <code>iphone</code>. for this one i want <strong>.ipa</strong> file. how to create <code>.ipa</code> & install <strong>.ipa</strong> file in the <code>iphone</code>,iphone | |
| "what is the prototype linkage for objects created via the object literal notation in javascript my first post on stack overflow and so a complete newbie here and i am still getting used to the rules / annotations followed on this forum and so please do excuse this aspiring developer ;-) while reading through crockford s <em>good parts</em> i came across a line that said: <blockquote> <h2>every object is linked to a prototype object from which it can inherit properties. all objects created from object literals are linked to object.prototype an object that comes standard with javascript.</h2> </blockquote> so to test this out i wrote the following jscript code: <pre><code>var student = {} console.log(student.isprototypeof(object.prototype)) </code></pre> note: <ol> <li>i am executing this via the <strong>browser console</strong> and hence the function - <code>console.log(...)</code>.</li> <li>i am guessing the way the student variable declared here is using the <em>object literal notation</em> . isn t that correct </li> </ol> so the second line - <pre><code>console.log(student.isprototypeof(object.prototype)) </code></pre> returned a <strong>false</strong> instead of a <strong>true</strong>. shouldn t that display a <strong>true</strong> instead of a <strike>false</strike> well doesn t that contradict the lines from the book that i mentioned above so here is the snippet in action - <div class= snippet data-lang= js data-hide= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>var student = {}; | |
| alert(student.isprototypeof(object.prototype));</code></pre> | |
| </div> | |
| </div> | |
| <em>i am sure that i missing something here for sure!</em>",javascript | |
| i am unable to create temporary file i am trying to create a temporary files using java.but when i run my codes it shows the following error. <pre><code>number.java:7: cannot find symbol symbol : class path location: class number path tempfile = files.createtempfile(null .txt ); ^ number.java:7: cannot find symbol symbol : method createtempfile(<nulltype> java.lang.string) location: class files path tempfile = files.createtempfile(null .txt ); ^ 2 errors </code></pre> and here s the code and when i import java.io.file;.then it show error package does not exist <pre><code>import java.io.*; public class number{ public static void main(string args[]) {try { path tempfile = files.createtempfile(null .txt ); system.out.format( the temporary file + has been created: %s%n tempfile); } catch (ioexception x) { system.err.format( ioexception: %s%n x); } }} </code></pre>,java | |
| iphone - uiview inside uiscroller... view not passing touches to parent i have a uiview (lets call it myview) inside a uiscroller. myview has elements that can be dragged on it. when one of these elements are touched the scroller is locked to prevent the whole thing from scrolling. the elements have exclusivetouch = yes. i need the whole thing to scroll when just myview is touched. i had this working with touchesbegan touchesmoved etc. but i am converting this class to gestures. the new class has two gestures attached to it: uipangesturerecognizer and uitapgesturerecognizer. something like: <pre><code> uipangesturerecognizer *pangesture = [[uipangesturerecognizer alloc] initwithtarget:self action:@selector(drag:)]; [pangesture setmaximumnumberoftouches:1]; [pangesture setdelegate:self]; [myview addgesturerecognizer:pangesture]; [pangesture release]; uitapgesturerecognizer *singletap = [[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(tapadd:)]; [singletap setdelegate:self]; [singletap setnumberoftapsrequired:1]; [myview addgesturerecognizer:singletap]; [singletap release]; </code></pre> when this class used the old methods (touchesbegan etc.) i simply forwarded the touches using something like <pre><code>[self.nextresponder touchesbegan: touches withevent:event]; </code></pre> but how do i do that using gestures i mean the uipangesturerecognizer will in my case run a method called drag: and this method receives a gesture... how do i forward the touch to its scroller parent so the whole thing scrolls thanks,iphone | |
| how can i use the string variable transferred as the command parameter to a instance of another class in java how can i use the string variable transferred as the command parameter to a instance of another class in java like this: <pre><code>public class nbody { public static void main(double t double dt string filename) { in filename = new in(); filename.readint(); } } </code></pre> it notified as: <blockquote> nbody.java:3: filename is already defined in main(double double java.lang.string) in filename = new in(); </blockquote>,java | |
| check if a div has controls javascript i use alert to check if a div has any child controls: <pre><code>alert(document.getelementbyid( maincontent_imgcontainer ).haschildnodes()); </code></pre> and this always returns true even if the maincontent_imgcontainer div doesn t have any child controls please tell me what is the better way to determine if a div has child controls.. thanks,javascript | |
| ipad leak - nspushautoreleasepool we are getting a sizable leak (16kb) that is proving very difficult to eliminate. the responsible library is foundation and the responsible frame is nspushautoreleasepool. this leak does not appear on the iphone only the ipad. we get the following stack trace: <pre><code> 9 libsystem.b.dylib thread_assign_default 8 libsystem.b.dylib _pthread_start 7 webcore runwebthread(void*) 6 corefoundation cfrunloopruninmode 5 corefoundation cfrunlooprunspecific 4 corefoundation __cfrunloopdoobservers 3 webcore webrunlooplock(__cfrunloopobserver* unsigned long void*) 2 foundation nspushautoreleasepool 1 foundation _nsapaddpage 0 libsystem.b.dylib malloc </code></pre> we re getting a similar one in the frame nsautoreleasepool. we ve checked everywhere in the code we create an autoreleasepool to make sure we re releasing it. since none of this is our code i m not sure how to proceed. thanks in advance.,iphone | |
| can someone explain how to use str.index and str.find and why the following code is wrong i m very new to python and have been trying out codewars. some problems pretty difficult for me. what i m trying to accomplish is to know the index of the vowels in a given word for example there are two vowels in the word super (the second and fourth letters). i don t really understand how to use index and/or find. i need to know i can edit this code to find the positions of the vowels in any given word. <pre><code>def vowel_indices(word): word.index( a i o u e y ) word.find( a i o u e y ) </code></pre>,python | |
| converting string to int: python i have a series dataobject which have dtype as object. it contains int in str format as well as many strings. i want to convert only int to int type and del rest. example: <pre><code> 1 3 sd34 4 r5 </code></pre> result: <pre><code>[1 3 4] </code></pre>,python | |
| program allows you specify points in n-dimensional space so here is the gist of the assignment i am having difficulty with: <ul> <li> write a java class called point to represent a n-dimensional point (with coordinates that are double) <ul> <li>the constructor should take any number of coordinates</li> <li>the class should have accessor method for any coordinates</li> <li>write tostring() and copy() and equals() helper methods</li> <li> keep track of every created poin </li> <li> write a java class called line to represent a line (with a starting point and an ending point) </li> <li>the constructor arguments are the start and end points</li> <li>the constructor must throw an error when the 2 points are not of the same dimension</li> <li>write a tostring() and copy() and equals() helper method</li> <li>provide a getlinelength() method - look up euclidian distance on wiki</li> <li>keep track of every created line</li> </ul></li> </ul> so i have created my line and point class but i am not sure if i am creating my line or point class correctly. i already have my main method designed to take input from the console and store that input into two different arrays for the coordinates. when i try to call this method in my main to print the coordinates and distance i get back the output: the distance between ( 4.0 5.0 ) ( 2.0 3.0 ) ( 0.0 0.0 ) is> so i was hoping i could get help in clarifying if i am creating my constructor and everything else correctly. here is my code for both classes thus far: <pre><code>public class point{ private double[] coordinate1; private double[] coordinate2; public point(double[] array1 double[] array2){ this.coordinate1 = array1; this.coordinate2 = array2; } //method to get array inputs and copy them public void copy(double[] points1 double[] points2){ double[] coordinate1 = new double[points1.length +1]; for(int copyindex = 0; copyindex < points1.length; copyindex++){ coordinate1[copyindex] = points1[copyindex]; } points1 = coordinate1; double[] coordinate2 = new double[points2.length +1]; for(int copyindex = 0; copyindex < points2.length; copyindex++){ coordinate2[copyindex] = points2[copyindex]; } points2 = coordinate2; } //method to print the coordinates public void printarray(){ double array1 = coordinate1.length; double array2 = coordinate2.length; for (int i = 0; i < array1 && i < array2; i++) { system.out.println( ( + coordinate1[i] + + coordinate2[i] + ) ); } } } public class line{ private double[] coordinate1; private double[] coordinate2; private double distance; public line(double[] array1 double[] array2){ this.coordinate1 = array1; this.coordinate2 = array2; } public double getline(double[] coordinate1 double[] coordinate2){ double diffsquaresum = 0.0; for(int i=0;i<coordinate1.length;i++) { diffsquaresum += (coordinate1[i] - coordinate2[i]) * (coordinate1[i] - coordinate2[i]); } distance = math.sqrt(diffsquaresum); return distance; } public string tostring(){ return the distance is + distance; } } </code></pre> please let me know if i need to clarify or expand on my question. appreciate any help. thank you. here is the output expected from the program once ran: example: enter point # 1 dimension # 1 or random or exit or help or blank line to proceed: 3.14 enter point # 1 dimension # 2 or random or exit or help or blank line to proceed: 0 enter point # 1 dimension # 3 or random or exit or help or blank line to proceed: enter point # 2 dimension # 1 or random or exit or help or blank line to proceed: 0 enter point # 2 dimension # 2 or random or exit or help or blank line to proceed: hel <ul> <li>this program allows you specify points in n-dimensional space: <ul> <li>each point can have different number of non-zero coordinate</li> <li>you may request a random number for any coordinate by typing random </li> <li>when you are finished entering the cordinate just press the key</li> </ul></li> <li>pairs of point are used to create a lines <ul> <li>if the 2 points have mismatched dimensions and error will be shown</li> <li>when a line is created the line distance is provided</li> </ul></li> <li>when you are done specifying points and lines type exit to display final operation statistics</li> <li>all key words are case insensitive and can be abreviated</li> <li>random number will be scaled between -1 000.00 and +1 000.00</li> </ul> enter point # 2 dimension # 2 or random or exit or help or blank line to proceed: 2.71 enter point # 2 dimension # 3 or random or exit or help or blank line to proceed: the distance between ( 3.14 0.0) and ( 0.0 2.71) is 4.147734321289154 enter point # 1 dimension # 4 or random or exit or help or blank line to proceed: random --> -75.1234 enter point # 1 dimension # 5 or random or exit or help or blank line to proceed: enter point # 2 dimension #1 or random or help or exit or blank line to proceed: ra --> 38.12851983534693 enter point # 2 dimension #2 or random or help or exit or blank line to proceed: rand --> 74.31366638262983 enter point # 2 dimension #3 or random or help or exit or blank line to proceed: ouch - you tried to create a line with points of disimilar dimension! enter point # 1 dimension # 1 or random or exit or help or blank line to proceed: exit you created 4 points: ( 3.14 0.0 ) ( 0.0 2.71 ) ( -75.1234 ) ( 38.12851983534693 74.31366638262983 ) you created 1 lines: ( 3.14 0.0 ) to ( 0.0 2.71 ) with length 4.147734321289154 so it keeps asking for coordinate doubles and creates a line and then prints out all lines made once program closes. hope that helps clarify what the assignment requires,java | |
| what entities are visible in cross <script> block in javascript i was trying to figure out what entities (ex. variable property function object etc.) defined in one <code><script></code> block would be visible to other <code><script></code> block. after some study it seems to me that: <ol> <li> from one <code><script></code> block only the variables/properties that are attached with global <code>window</code> object are accessible to other <code><script></code> block. </li> <li> for a function/object or expression to be accessed to other <code><script></code> block it must be attached to the <code>window</code> object by means of a variable/property. </li> <li> variables that are defined outside any function scope with/without <code>var</code> keyword become part of <code>window</code> object/global context. </li> <li> variables defined inside a function without <code>var</code> keyword become part of <code>window</code> object/global context. </li> <li> <strong>there is no other ways to be inside the <code>window</code> object/global context</strong> and thus accessible to cross <code><script></code> block. </li> </ol> i know the fifth point is pretty bold but it seemed correct to me. <strong>is this correct </strong> if not what s wrong,javascript | |
| python - i need a collection with negative indices i am parsing a 3d mesh collecting repeating loops. the point of entry is not precisely known to me but my algorithm walks the mesh in in two directions. first from 0 up then from 0 down. i then need to convert collected information into a simple ordered collection. i ve managed to achieve a dict[int somecontainerfor3d] with keys ranging from -i to j. can i somehow sort it now and output into a 0-based collection or is there an easier way to go about it all edit: because i can t attach the whole 3d mesh along with the actual algorithm i built a model of the problem as mcve: <pre><code>import random condo = [ stoker laundryboy receptionist mr z mr j the s family the m family mr rich ] entry_point = random.randint(0 len(condo)-1) occupants_map = {} :type : dict [int string] def burglar(current): unknownlocation = entry_point+current if unknownlocation < len(condo) and unknownlocation >= 0: doorlabel = condo[unknownlocation] occupants_map[current] = doorlabel return true else: return false current = 0 while burglar(current) == true: current += 1 current = -1 while burglar(current) == true: current -= 1 print(occupants_map) </code></pre> it prints out oddly enough positive keys in order then negative keys in a weird unordered fashion. next i will try to sort the dict and output the same occupants map to a sorted collection with only positive indices. i would still appreciate help with this.,python | |
| calleventhandler not invoked in objective c i have to get call status on the end of the call but my event is not invoked following like line always return false [callcenter setcalleventhandler: ^(ctcall* call) here is my code <pre><code>ctcallcenter *callcenter = [[ctcallcenter alloc] init]; callcenter.calleventhandler=^(ctcall* call) { if(call.callstate == ctcallstatedialing) { //the call state before connection is established when the user initiates the call. nslog(@ call is dailing ); } if(call.callstate == ctcallstateincoming) { //the call state before connection is established when a call is incoming but not yet answered by the user. nslog(@ call is coming ); } if(call.callstate == ctcallstateconnected) { //the call state when the call is fully established for all parties involved. nslog(@ call connected ); } if(call.callstate == ctcallstatedisconnected) { //the call state ended. nslog(@ call ended ); } }; </code></pre> any help will be greatly appriciated,iphone | |
| how to mask an view with an black-white image i ve heard that it s possible to mask views with black/white images where black means fully transparent and white means view is visible. the big difference to clipstobounds is that the view could be clipped in funny shapes like circles or stars. how could i do that,iphone | |
| "no output from the object functions this question is from an written test for a company. it looks very confusing. i thought it will print whatever <code>this.name</code> is set to. bu when i typed the code it shows nothing. i have little knowledge about closures and i think it is related to the problem. i want a little explanation here. <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>function dd(name) { | |
| this.name = name; | |
| this.go = function() { | |
| setinterval(function() { | |
| return this.name; | |
| } 2000) | |
| } | |
| } | |
| var tt = new dd( corolla ); | |
| tt.go()</code></pre> | |
| </div> | |
| </div>",javascript | |
| iphone provesion provision profile outdated no renew button do you have to renew the provision profile before it becomes outdated i do not see a renew button in the provision profile portal. allso if i creat a new provision profile can i use it to update my app instad of the new one,iphone | |
| how to detect that the end of a scrollable element has been reached i am displaying 10 wordpress post titles in a list followed by a load more button that loads the next 10 results. how would i automatically trigger that button (let s make it a javascript event) when reaching the end of the scrollable parent of that list is it possible to detect the position of the scrollbar or the visibility of the last list item on the screen what is the most failprove method thanks you for your tips and tricks guys! p.s. i do not work with jquery so no need to suggest solutions that are using it :).,javascript | |
| python standard library to get total memory size i m wondering if there is a module in python standard library i can use to get the total physical memory size. i know i can use psutil but it would be great if my python script can run without installing external module. thanks! edited: sorry guys i forgot to mention that i m using a mac osx. thanks for all the windows solutions tho!,python | |
| converting log file line to dictionary i have a log file generated by an external program i can t control that consists of a key-value pairs separated by spaces and i can t find a simple way to parse this. for example a line would contain something like <pre><code>time= 2017-10-03t15:13:34z level=info msg= some information message time= 2017-10-03t15:13:35z level=warn msg= some basic message err= more details on error </code></pre> i can t split on spaces because of the strings and i m not entirely sure how to deal with this using regex because not everything is bounded in quotes. is there a simple way to convert a single line into a dictionary (or json),python | |
| best way to write this on iphone this is the output i want <strong> select * from wateat_tbl where name like %love% or desc like %love% ;</strong> where <strong>love is a text enterted by use</strong>r now i want to write this in effective way right now i am doing this lame code <pre><code> mystringprt1=@ select * from wateat_tbl where name like % nsstring *trimmedstring1 = [mystringprt1 stringbytrimmingcharactersinset: [nscharacterset whitespaceandnewlinecharacterset]]; mystringprt2=usertext;// user input love nsstring *mystringprt3=@ % or desc like % ; nsstring *mystringprt4=@ % ; trimmedstring1=[trimmedstring1 stringbyappendingstring:mystringprt2]; trimmedstring1=[ trimmedstring1 stringbyappendingstring:mystringprt3]; trimmedstring1=[ trimmedstring1 stringbyappendingstring:mystringprt2]; trimmedstring1=[ trimmedstring1 stringbyappendingstring:mystringprt4]; nslog(@ my string is now = %@ trimmedstring1); </code></pre>,iphone | |
| access json to dict in python i have the next json in js <pre><code>var intervalos= { operandos :[{ extremoinferior :$(edit_numvar).context.value extremosuperior :$(edit_numvar2).context.value } { extremoinferior :$(edit_numvar3).context.value extremosuperior :$(edit_numvar4).context.value }] }; </code></pre> and i did <code>parsed_input = json.loads(self.intervalos)</code> but now i don t know how to access to my dict. i tried with <pre><code>intervalos[operandos][extremoinferior]) </code></pre> but it returns an error. could you help me for accessing to any element of my dict,python | |
| instant search depending on a uitextview content i want to display results instantly while user enters some information (like google search). for now i am doing this using a button. is there a way to do it instantly thanks for any help.,iphone | |
| what exactly is causing these undefined methods errors i have a <code>phonebook</code> class that extends <code>abstractcollection<contact></code> in which i have overwritten <code>add</code> <code>size</code> and <code>iterator</code> methods. in the main function i create a new instance of the <code>phonebook</code> class and attempt to add a <code>contact</code> to it using the <code>add</code> method. apparently everything compiles fine however i get an exception at runtime saying: <pre><code>exception in thread main java.lang.error: unresolved compilation problems: the method add(contact) is undefined for the type phonebook the method add(contact) is undefined for the type phonebook the method size() is undefined for the type phonebook </code></pre> i don t know why this is happening and my searches didn t bring up any useful information. the code that s causing the error: <pre><code>public class phonebook extends abstractcollection<contact> { private hashset<contact> contacts = new hashset<>(); @override public boolean add(contact newcontact) { return contacts.add(newcontact); } @override public int size() { return contacts.size(); } @override public iterator<contact> iterator() { return contacts.iterator(); } } public class application { public static void main(string[] args) { phonebook book = new phonebook(); book.add(new contact( marco polo asd@acf.com )); book.add(new contact( pablo cablo asd@ccf.com )); book.size(); system.out.println(book); } } </code></pre> what exactly am i doing wrong,java | |
| prevent user from entering the same input twice i am making a game similar to text twist on python and i was wondering how to prevent the user being able to input the same word twice. here is what i have so far... <pre><code>import random correct = 0 incorrect = 0 usedwords = [] print welcome to text twist you have 14 guesses to get 7 words made up of 4 5 or 6 letters. good luck! for i in range(14): print your letters are e p l b e b what is your guess answer = raw_input() if answer in usedwords: print sorry you ve already used this word if answer == belle or answer == bleep or answer == pebble or answer == beep or answer == bell or answer == peel or answer == peep : if answer in usedwords: print nice that was one of the words! usedwords.append(answer) correct = correct + 1 if answer != belle and answer != bleep and answer != pebble and answer != beep and answer != bell and answer != peel and answer != peep : print sorry that was not one of the words. incorrect = incorrect + 1 print your final score was correct correct and incorrect wrong. </code></pre>,python | |
| how to change uiimageview image on previous and next button click i have an nsmutablearray with 10 different images. initially i am displaying first three images from that array. now what i want is to display next images from that array when the next button click. also previous images when previous button is clicked. i am able to display different images when next button gets clicked but it comes only on the last uiimageview. <pre><code>- (ibaction)nextimage:(id)sender { nslog(@ count is :%d%d count coursearry.count); if ((count+1) > coursearry.count) { count = 0; } starimageview.image = [uiimage imagenamed:[coursearry objectatindex:count]]; count++; } -(ibaction)previousimage:(id)sender { if ((count-1) > coursearry.count) { count = 0; } starimageview.image = [uiimage imagenamed:[coursearry objectatindex:count]]; count++; } </code></pre>,iphone | |
| how to change default value with click function <pre><code>function navigation() { var navigation = { value:1 }; return navigation.value; $( #cookie_outside ).click( function() { var navigation = { value:0 }; return navigation.value; }); $( #cookie_inside ).click( function() { var navigation = { value:1 }; return navigation.value; }); } swiper = new swiper( .swiper-container { slidesperview: auto parallax: false initialslide: navigation() grabcursor: true resistanceratio: .00000000000001 }); </code></pre> how can i change default value with click function. initialslide: navigation() . my default value is 1 i want it change when i clicked #cookie_inside or #cookie_outside. it can be possible instant change,javascript | |
| uri escaping n number of slashes in javascript i m trying to set up a replace for all %2f strings specifically for a search term. i have already run the search term through encudeuricomponent(search_term) and need to double escape only the %2fs. if the search term is ac/dc i want the result to be: ac%252fdc. i can do this quickly like this: <pre><code>search_term = encodeuricomponent(search_term); search_term = search_term.replace( %2f %252f ); </code></pre> however this doesn t work for ac//dc which returns: <pre><code>ac%252f%2fdc </code></pre> when what i want is: <pre><code>ac%252f%252fdc </code></pre> i can solve this by running a replace like so... <pre><code>search_term = search_term.replace( %2f%2f %252f%252f ); </code></pre> this isn t scalable. i m wondering why doing the first replace isn t replacing both %2f strings. thank you.,javascript | |
| how to encrypt/decrypt the video url i have video urls in my app. i want to encrypt/decrypt those urls. i m trying so much but i could not find any way to do this. please . thanks in advance.,iphone | |
| javascript input tag not setting id or class i have a table with input rows created from a mysql query. the user can alter those rows but he/she might also wish to add a new row. so i created a javascript function to add a new row when a button is clicked. the new row is being created correctly but the input tag is not getting its id or class. <pre><code> function addrow(id) { var tableref = document.getelementbyid(id); var nextseq = document.getelementbyid( maxseq ).value; var newrow = tableref.insertrow(2); var rowid = tr +nextseq; //first cell var cell1 = newrow.insertcell(0) ; var text1 = document.createtextnode(nextseq); cell1.appendchild(text1); var id1 = cell + nextseq + 1 ; cell1.id = id1; //second cell var id2 = cell + nextseq + 2 ; var cell2 = newrow.insertcell(1).innerhtml = <input type = text id = id2 class = xxx style = width:100px value = 1001-01-01 > ; // var test = document.getelementbyid(id2); //alert( test is + test); ...more stuff which is working fine ... } </code></pre> the alert on test gives test is null so i gather the id is not being set. i also tried <pre><code>var abc = document.getelementsbyclassname( xxx ); alert( abc is + abc); </code></pre> and the alert says abc is [object htmlcollection] how can i fix this so that the id and class are functioning,javascript | |
| javascript to select multiple select list i have following select list from which user can select multiple option <pre><code><select size= 6 onblur= validatevalumethod() multiple= id= valumethod[] name= valumethod[] > <option value= 0 >select asset</option> <option value= oc >original cost</option> <option value= ocuip >original cost using indexed prices</option> <option value= rc >replacement cost</option> <option value= occr >original cost considering revaluation</option> <option value= ocuipcr >original cost using indexed prices & considering revaluation</option> <option value= rccr >replacement cost considering revaluation</option> </select> </code></pre> i need to fetch the value selected by user in javascript but dont know how to do this please help me.,javascript | |
| cost of looking up a tuple in a list of tuple suppose i have a list of tuples of the form <code>list = [(key1 value1) (key2 value2)]</code> then is it fast/good to look up if a tuple exists in the list like this: <code>(key_x value_x) in list</code> also how does python search the list ! does it compare pointers or how ! i m new to python coming from java.,python | |
| simple calculator cant get past println so here s my code. <a href= https://ideone.com/ok42qz rel= nofollow >https://ideone.com/ok42qz</a> <pre><code> system.out.println( setcaculatorinput ); scanner sc = new scanner(system.in); int z = sc.nextint(); system.out.println( setvaluea ); int a = sc.nextint(); system.out.println( setvalueb ); </code></pre> the main problem is that i cant get past system.out.println( setcaculatorinput ) as it crashes right after that line.,java | |
| javascript error : expected helo all im setting json-like data format to ne used by a js libray called fusioncharts. at the bottom is a section called data and in there the error is happening at the second object: <code>totalfundedvalue</code> ok here is a snippet of my rendered html: <pre><code>var totalfunded = 109321734.06 ; var totalfundedvalue; var totalfundedlabel; var totalfundedtext; if (totalfunded != null) { totalfundedlabel.push({ label : funded }); totalfundedvalue.push({ value : 109321734.06 }); totalfundedtext.push({ tooltext : $109 321 734.06 }); } data :[{ totalfundedlabel totalfundedvalue totalfundedtext } ] </code></pre> js: <pre><code>var totalfunded = ${totalfunded} ; var totalfundedvalue; var totalfundedlabel; var totalfundedtext; if (totalfunded != null) { totalfundedlabel.push({ label : funded }); totalfundedvalue.push({ value : <tld-msst:fc-value var= ${totalfunded} /> }); totalfundedtext.push({ tooltext : <fmt:formatnumber value= ${totalfunded} type= currency groupingused= true /> }); } </code></pre> just for clarification this is what it looks like without using the push methods: <pre><code> data: [{ label : funded value : ${totalfunded} tooltext : <fmt:formatnumber value= ${totalfunded} type= currency groupingused= true /> } </code></pre>,javascript | |
| starting web programming in java i ve been programming in php and asp.net for a while now. when doing php i ve always used xampp to test my websites. i m wondering (since i m learning java) if there are equivalent services around furthermore i know this is sort of an open question but how would you make a basic page in java just a basic hello world web page.,java | |
| how to run java class or debug <pre><code>package com.sample; import java.sql.drivermanager; import com.mysql.jdbc.connection; public class connectionclass { public static void main(string args) { system.out.println( mysql connect example ); connection conn = null; string url = jdbc:mysql://localhost:3306/ ; string dbname = testdatabase ; string driver = com.mysql.jdbc.driver ; string username = root ; string password = root ; try { class.forname(driver).newinstance(); conn = (connection) drivermanager.getconnection(url + dbname username password); system.out.println( connected to the database ); conn.close(); system.out.println( disconnected from database ); } catch (exception e) { e.printstacktrace(); } } } </code></pre> this code connects to a database and gives no syntax error. i am doing this in eclipse and when i run the project it asks which class we need to run but my class is not there.,java | |
| getting distance on roads between 2 locations hello how can an iphone user find the distance on roads between two locations using an in app solution preferably using two text fields i tried google maps. however i m not sure if there is a mapkit tool to do this build in or a google maps api i am trying to use this value in order to do some calculations afterwards.,iphone | |
| js how to sum/average i have an object and need to sum/average of each dynamic span. can t seem to convert those to numbers though. please help. <a href= https://s23.postimg.org/pofiv98qj/1.png rel= nofollow noreferrer title= console >console log</a><br> <a href= https://s23.postimg.org/6km7ewvwb/2.png rel= nofollow noreferrer title= code sample >code sample</a> <pre><code>expand/collapse created : 1/3/2017 <span>(10)</span> expand/collapse created : 1/4/2017 <span>(38)</span> expand/collapse created : 1/5/2017 <span>(13)</span> expand/collapse created : 1/6/2017 <span>(35)</span> expand/collapse created : 1/9/2017 <span>(46)</span> expand/collapse created : 1/10/2017 <span>(17)</span> expand/collapse created : 1/11/2017 <span>(27)</span> var arr = []; $( .ms-gb span ).each(function(index elem){ arr.push($(this).text()); }); $( #result ).text(arr.join( + )); // (10)+(38)+(13)+(35)+(46)+(17)+(27) var allnumbers = document.getelementbyid( result ).innertext; // (10)+(38)+(13)+(35)+(46)+(17)+(27) allnumbers = allnumbers.replace(/[ ()]/g ); // 10+38+13+35+46+17+28 var newstring = allnumbers.split( + ); // object - [ 10 38 13 35 46 17 27 ] </code></pre>,javascript | |
| how to play youtube video in webview in iphone how to remove default done button of mpmoviecontroller in iphone,iphone | |
| do python dictionaries have all memory freed when reassigned working in python. i have a function that reads from a queue and creates a dictionary based on some of the xml tags in the record read from the queue and returns this dictionary. i call this function in a loop forever. the dictionary gets reassigned each time. does the memory previously used by the dictionary get freed at each reassignment or does it get orphaned and eventually cause memory problems <pre><code>def readq(): qtags = {} # omitted code to read the queue record get xml string domify it qtags[ result ] = success qtags[ call_offer_time ] = get_node_value_by_name(audio_dom call_offer_time ) # more omitted code to extract the rest of the tags return qtags while signals.sigterm_caught == false: tags = readq() if tags[ result ] == empty : time.sleep(sleep_time) continue # do stuff with the tags </code></pre> so when i reassign tags each time in that loop will the memory used by the previous assignment get freed before being allocated by the new assignment,python | |
| python error : tuple object has no attribute upper i wanna make word count and list how many times word counted. but <hr> <pre><code> f = open( les.miserable.txt r ) words = f.read().split() words.sort() wordcount = () for i in range(len(words)): words[i] = words[i].replace( . ) ( ) ( / ) ( ) ( ! ) words[i] = words[i].upper() if words[i] not in wordcount: wordcount[words[i]] = 1 else: wordcount[words[i]] += 1 </code></pre> i can see error message tuple object has no attribute upper in <pre><code>words[i] = words[i].upper() </code></pre> here and also error message tuple object does not support item assignment in wordcountint[words[i]] = 1 please let me know know what is the problem,python | |
| how javascript execute the code and define variables i have just started to learn js and trying to understand how it executes the code. if i run following code: <pre><code> console.log(a); var a = hello world console.log(a); </code></pre> the output for first line is undefined and second line hello world . my question is why js didnt do either of these: 1) throw me an error at first line that a is not defined and then output hello world . 2) i understand js has two phases creation and execution then in this case at the end of the creation phase js knew that a value has been defined as hello world . why it didn t give out as hello world for both console.log thanks,javascript | |
| why wont my clone work. java i have a class of objects called item but the clone function won t work. <pre><code>item newitem = addeditem.clone(); </code></pre> please help : ( added: <pre><code>public abstract class item extends gameobjectscls implements cloneable item newitem = (item)addeditem.clone(); </code></pre> and added the public clone method but now am asked for try catch statement. is that ok public <code>object clone() throws clonenotsupportedexception {</code>,java | |
| java programming exercise debug program i want to say thank you for reviewing my post and any contributions to my problem i am having. i am fairly new to java so i was wondering if you guys could please help me debug this program. <pre><code>import java.util.scanner; public class debugexercise { public static void main(string[] args) { scanner input = new scanner(system.in); string area instr; int pages; system.out.println( please enter your city ); area = input.nextline(); system.out.println( please enter page number + area + s phone book ); pages = input.nextint(); phonebook phonebook = new phonebook(area pages); phonebook.display(); } } class phonebook extends book { private string area; private string size; phonebook(int pages string city) { super(); area = city; if (pages > 300) { size = big ; } else { size = small ; } } public display() { system.out.println( area + pages + size); } } class book { protected int pages; public book(int pages) { pages = pages; } public int getpages() { return pages; } } </code></pre>,java | |
| programmatically change device orientation in iphone i have navigation based app when i click on any row in root view the next view should come in landscape mode. i am not able to find a proper way to implement this. what i tried is: <pre><code>- (bool)shouldautorotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation { return uiinterfaceorientationislandscape(interfaceorientation); } </code></pre> but this is not working. the view should open only in landscape mode (not when user rotate it). can any one help me. thanks,iphone | |
| screenshots app store: status bar or no status bar i am about to submit my app to the app store for review. the app is running on iphone requires ios 7 or later and it s optimised for iphone 5 6 and 6 plus which means i have to submit screenshots for all these devices. with the 6 and 6 plus sizes i am ok. 5.5in (iphone 6 plus): 1242 × 2208px portrait (with status bar) 4.7in (iphone 6): 750 × 1334px portrait (with status bar) what about the 4in do i crop the status bar and submit 640 × 1096px portrait (without status bar) or do i leave it and submit 640 × 1136px portrait (full screen) thanks,iphone | |
| java 7 sun.* classes with java 8 i am using some library which inside itself use sun.security.* classes. and i m using it as dependency in my project which is java 8. in java 8 some methods removed from sun classes which my library need. i understand that messing up with sun.* packages is not good idea but i don t want to downgrade my project to java 7 so is there any workaround to make my project run in java 8 environment but use sun.* classes from java 7,java | |
| any suggestion if i need to write an iphone/ipad app to show html5 content is there any reference about writing an application on ipad/iphone to show html5 content <ul> <li>any reference book</li> <li>sample source codes</li> <li>which components should i use </li> </ul> million thanks.,iphone | |
| python sum array of objects into objects i have a list (name=carpet) of objects type mini_carpet. mini_carpet contains a list of objects called packages. packages has various properties the one interesting to me is nr_buys. what i want to do is to sum the various nr_buys that are within a mini_carpet within a carpet. this is what i have done so far: <pre><code>for d in range(0 carpet.__len__() - 1 +1): nr_total = sum(carpet[d].packages[i].nr_buys for i in carpet[d].packages) </code></pre> this is giving me an error because list indices must be integers. any help thanks!,python | |
| python syntaxerror when creating a list using a generator i m relatively new to python and i m just trying to get to grips with some of the common features. i tried to write a simple script to get all the whole number square roots of numbers between 0 and 100. this is what i came up with: <pre><code>mylist = [n for n*n in xrange(0 101)] </code></pre> i got a syntaxerror when i ran it and as far as i can tell it s not liking the n for n*n in bit. am i right in deducing that this is just not possible is there a way to achieve this or do i need a sqrt() function thanks,python | |
| using two build_opener at once i m a newbie with python and i m trying to build a simple script to download a remote html file for parsing the content. i need to use the both a proxy as well as a cookie enabled enviroment to authenticate with the remore system. as long as i use just one handler everything is fine. however as soon as i try to use the combination of the cookie handler and the proxy handler at the first connection the python script raise an exception. <pre><code>self.cj = cookiejar() proxy_support = urllib2.proxyhandler({ http : http://193.104.35.23:80 }) self.opener = urllib2.build_opener(proxy_support urllib2.httpcookieprocessor(self.cj)) urllib2.install_opener(self.opener) self.opener.open( http://www.mysite.com ).read() </code></pre> and in the console i get the following messages. pydev debugger: unable to find real location for: /system/library/frameworks/python.framework/versions/2.7/lib/python2.7/userdict.py pydev debugger: unable to find real location for: /system/library/frameworks/python.framework/versions/2.7/lib/python2.7/fnmatch.py pydev debugger: unable to find real location for: /system/library/frameworks/python.framework/versions/2.7/lib/python2.7/posixpath.py there are some other errors like this as soon as the script starts the execution but without using the proxy everything runs fine. also after a while the script ends with this urllib2.httperror: http error 500: internal server error which is pretty self-explanatory but i can t understand what the problem is as i ve been granted to the use of that proxy server on ip basis (meaning that only me in the office can use that address). any help,python | |
| why do classes in the python threading module expose factory functions instead of constructors in the <code>threading</code> module names like <a href= http://hg.python.org/releasing/2.7.4/file/9290822f2280/lib/threading.py#l111 >rlock</a> <a href= http://hg.python.org/releasing/2.7.4/file/9290822f2280/lib/threading.py#l411 >semaphore</a> and <a href= http://hg.python.org/releasing/2.7.4/file/9290822f2280/lib/threading.py#l541 >event</a> are all factory functions while the name of implementation classes are prefixed by underscores. the factory functions just pass all arguments they received to the underlying constructors. so what s the benefit of doing this,python | |
| how to print last two digits of given integer a=1234 in java if i m giving values like a=1234 i want to print last two digits 34 only.. can anyone give me solution for this... <pre><code>int a=1234; system.out.print(a); </code></pre>,java | |
| why can two variables have the same name i execute the following code and i get no errors and in the output i see the <code>success!</code> message. can you please explain this strange behaviour. <pre><code>public class main { public static void main(string[] args) { int р = 0; int p = 1; if(р == 0 && p == 1) { system.out.println( success! ); } } </code></pre> <hr> <a href= https://ideone.com/k1qjcx rel= nofollow noreferrer >you can check the online demo</a>,java | |
| generate date of birth from id number for people born after 2000 i am looking for a function to generate/ populate date of birth for id numbers of people born after 2000. this is my code right now but it doesn t extend to after 2000 <pre><code> var year = idnumber.substring(0 2); var month = idnumber.substring(2 4) var day = idnumber.substring(4 6) var dob = 19 + year + / + month + / + day; </code></pre> how can i modify this to accommodate > 2000,javascript | |
| how to create login form using sqlite in iphone view based application i want to create login form using sqlite in iphone view based application please help me.give any idea about sqlite in iphone and any sqlite tutorial for iphone application development..,iphone | |
| how to calculate the path to a child node in a tree i have a tree like this: <pre><code>var tree = [ { type: folder children: [ { type: folder children: [ { type: document id: 1 children: [] } ] } ] } { type: folder children: [] } ]; </code></pre> the leafs of this tree always have an empty <code>children</code> array. i need to construct a function which will return the path of indices to the node which satisfies the given condition. the function would be called like this: <pre><code>getpathtonode(tree function (node) { return node.type === document && node.id === 1; }) </code></pre> and would return the following: <pre><code>[0 0 0] </code></pre> which describes the path to that node: <pre><code>tree[0].children[0].children[0] </code></pre> this recursive function is what i got so far: <pre><code>function getpathtonode(tree fn) { return tree.reduce(function (path node i) { if (fn(node)) { return path.concat(i); } if (node.children.length > 0) { const pathtonode = getpathtonode(node.children fn); return pathtonode.length > 0 path.concat(i pathtonode) : []; } return []; } []); } </code></pre> i think the function needs to build a path while traversing then if it reaches a leaf without finding the node delete only the part of that path which belonged to the branch where the node wasn t found then continue with other branches.,javascript | |
| return location of value from a sorted list i hope i m describing this correctly: i am looking to update the state of an object based upon the object s current state a transition matrix and a random variable ( rv ). as an illustration suppose i have a matrix of n elements with three states (say solid liquid gas). each state has it s own probability of changing states. a threshold value when compared to a rv determines the state. eg <pre><code> solid liquid gas solid .50 .75 1.00 liquid .25 .50 1.00 gas .15 .35 1.00 </code></pre> i would like to write a function which given this transition matrix a current state and an rv returns the new state in as efficient a manner as possible (i am running many simulations and the actual matrix is much larger than 3x3). here s my code where value is the rv and list is a sorted list of a selected row containing the values expressed above. eg for solid the list is: [.50 .75 1.0] <pre><code>def return_location(value list): # returns location i from sorted list where value is >= i and < i+1 len = length(list) for i in range(0 (len-1)): if value < list[i] return(i) break; </code></pre> any thoughts appreciated!,python | |
| relative positioning (iphone sdk) given two labels (or views) how would you automatically move (reposition) the lower one relative to the changing vertical size of the upper one.,iphone | |
| python calculate student statistics i am trying to calculate student statistics using python. everything seems to be working fine except for the standard deviation part at the end. i thought i interpreted the formula right but clearly it s not. i keep getting 6.63 instead of the actual 7.48. help will be highly appreciated. update: i did the math. turns out the summation should actually be 279 while my code generates summation= 220. maybe that ll help some of you including me to try and find the issue. <pre><code>nums=[] total= 0 count= 0 x = int(input( enter a number (enter -1 to terminate): )) while x >= 0: if x <= 100: total = total + x count+=1 nums.append(x) if x>100: print( invalid entry. ) x = int(input( enter a number (enter -1 to terminate): )) print(nums) print( number of scores: count) idx=0 while idx < count: newindex = idx+1 maximum = nums[idx] while newindex < count: if(nums[newindex] < maximum): maximum = nums[newindex] newindex+=1 if maximum < nums[idx]: temp = nums[idx] nums[idx] = maximum nums[newindex-1] = temp idx+=1 print( maximum score: maximum) idx= 0 while idx< count: newindex= idx+1 minimum= nums[idx] while newindex < count: if (nums[newindex]> minimum): minimum= nums[newindex] newindex+=1 if minimum> nums[idx]: temp= nums[idx] nums[idx]= minimum nums[newindex-1]= temp idx+=1 print( minimum score: minimum) average=total/count print ( average score: average) summation=0 idx=0 while idx< count: value= nums[idx] if idx<count: summation += ((value-average)**2) idx+=1 print( standard deviation: int(summation/count)**0.5) </code></pre>,python | |
| face detection through webcam using java in ubuntu linux i am working on a project which requires face detection through webcam.suggest me any libraries that i can use to do this.i found one named opencv but it is for windows only.plz suggest some other methods also.thank you.,java | |
| iphone:recording conversation feature i want to develop an iphone application which has to record the phone conversation. can some one give me the instruction how can i achieve this thank you.,iphone | |
| making object eligible to be cleaned up i have very simple question but the answer is still not clear. if i have class person and inside class person there is one attribute which references to other object(ex: account). if person object is eligible for gc so either that attribute will be eligible to be cleaned up,java | |
| is this mixins code an error of book the principles of object-oriented javascript in mixins chapter there is an example code <pre><code>function mixin(receiver supplier) { for (var property in supplier) { if (supplier.hasownproperty(property)) { receiver[property] = supplier[property] } } return receiver; } function eventtarget(){ } eventtarget.prototype = { add: function(){console.log( add );} }; function person(name) { this.name = name; } mixin(person.prototype new eventtarget()); mixin(person.prototype { constructor: person sayname: function() { console.log(this.name); this.fire({ type: namesaid name: name }); } }); var person = new person( nicholas ); </code></pre> for my understanding this is trying to copy properties from eventtarget.prototype into person.prototype. so the code: <pre><code>mixin(person.prototype new eventtarget()); </code></pre> should be <pre><code>mixin(person.prototype eventtarget.prototype); </code></pre> am i right of this piece of code,javascript | |
| best way to procedurally add power-up items to an iphone game to better explain this i ll use doodle jump as an example. assuming that the platforms are recycled when the character jumps up and the new platforms appear (by scrolling down) there is occasionally a propeller hat on one of them. is there a recommended method to manage this new object should i instantiate a single one of these power-ups in the game level s init method and then set a boolean to flag whether it appears in my render method and update methods or should i instantiate it at the time that i want it to appear (i.e. just before the new platform scrolls down from its position just above the screen) and release it when it s a) grabbed by the character sprite or b) moves off the screen untouched thanks! <ul> <li>scott</li> </ul>,iphone | |
| _ in python returns me last function result ok i have something for you guys i type this code in fresh new python terminal: <pre><code>>>> print _ traceback (most recent call last): file <stdin> line 1 in <module> nameerror: name _ is not defined >>> magic [::2] mgc >>> print _ mgc >>> magic [::-1] cigam >>> print _ cigam </code></pre> or: <pre><code>>>> def foo(x): ... return x * x ... >>> print _ traceback (most recent call last): file <stdin> line 1 in <module> nameerror: name _ is not defined >>> foo(3) 9 >>> print _ 9 </code></pre> is this normal python behavior,python | |
| open file in python without file s full name i am trying to execute <code>f = open( filename )</code> in python. however i dont know the full name of the file. all i know is that it starts with s12 and ends with .ka i know the folder where it s located and i know it is the only file in that folder that starts and ends with s12 and .ka . is there a way to do this,python | |
| what does << means in javascript i am looking at some code in javascript <pre><code>var numcombos = 1<<numactive; </code></pre> numactive = 8 returns numcombos = 256 what does << means,javascript | |
| strange loops and append functions within them i a currently trying to understand the code of a python program which in essence is a pacman game. while i was reading the code i found a strange loop which seems to reset a list to empty followed by appending a value to this list. here is what i mean: <pre><code>def drawfood(self foodmatrix ): foodimages = [] color = food_color for xnum x in enumerate(foodmatrix): if self.capture and (xnum * 2) <= foodmatrix.width: color = team_colors[0] if self.capture and (xnum * 2) > foodmatrix.width: color = team_colors[1] imagerow = [] foodimages.append(imagerow) for ynum cell in enumerate(x): if cell: # there s food here screen = self.to_screen((xnum ynum )) dot = circle( screen food_size * self.gridsize outlinecolor = color fillcolor = color width = 1) imagerow.append(dot) else: imagerow.append(none) print( foodimages + str(foodimages)) return foodimages </code></pre> although <code>foodimages = []</code> and <code>imagerow = []</code> are both reset to empty in every iteration of the loop the foodimages list seems to continue growing. is it possible that the because we append dot to <code>imagerow</code> and <code>imagerow</code> to the list <code>foodimages</code> that the <code>foodimages</code> list continues to grow although <code>imagerow</code> was set to empty,python | |
| how to create nxn matrix/array in javascript i want to create an array or matrix with non-fixed number of rows like <br> <pre><code>var matrix=[[0 0 0 0 0 0 0 0 0 0] [0 0 0 0 0 0 0 0 0 0] [0 0 0 0 0 0 0 0 0 0]] </code></pre> how can i do that,javascript | |
| function is causing on page video to not load and cant seem to delay i m trying to make a troll page that plays a video in the background then goes through an endless alertbox loop my code <pre><code></div><video autoplay= true class= stretchtofit id= lol loop= true > <source src= ./stream.mp4 type= video/mp4 ></video> <script> function show_alert(){ alert( enjoy the stream ); alert(show_alert().repeat(0)); } show_alert(); </script> </code></pre> the issue is that the function is called before the video loads and therefore doesnt play. when i try to add a delay to the function it causes the video to cutout almost immediately. my goal is for it to play the video in the background and have the alertbox loop going.,javascript | |
| change settings from outside a module i think it s not possible but i ask anyway maybe i ll learn something. suppose i have a piece of a code from an external module i want to use: <pre><code>from __future__ import print_function import webbrowser import time from .api import twitter json from .oauth import oauth write_token_file from .oauth2 import oauth2 write_bearer_token_file try: _input = raw_input except nameerror: _input = input def oauth_dance(app_name consumer_key consumer_secret token_filename=none): perform the oauth dance with some command-line prompts. return the oauth_token and oauth_token_secret. provide the name of your app in `app_name` your consumer_key and consumer_secret. this function will open a web browser to let the user allow your app to access their twitter account. pin authentication is used. if a token_filename is given the oauth tokens will be written to the file. print( hi there! we re gonna get you all set up to use %s. % app_name) twitter = twitter( auth=oauth( consumer_key consumer_secret) format= api_version=none) oauth_token oauth_token_secret = parse_oauth_tokens( twitter.oauth.request_token(oauth_callback= oob )) print( in the web browser window that opens please choose to allow access. copy the pin number that appears on the next page and paste or type it here: ) oauth_url = ( https://api.twitter.com/oauth/authorize oauth_token= + oauth_token) print( opening: %s\n % oauth_url) try: r = webbrowser.open(oauth_url) time.sleep(2) # sometimes the last command can print some # crap. wait a bit so it doesn t mess up the next # prompt. if not r: raise exception() except: print( uh i couldn t open a browser on your computer. please go here to get your pin: + oauth_url) oauth_verifier = _input( please enter the pin: ).strip() twitter = twitter( auth=oauth( oauth_token oauth_token_secret consumer_key consumer_secret) format= api_version=none) oauth_token oauth_token_secret = parse_oauth_tokens( twitter.oauth.access_token(oauth_verifier=oauth_verifier)) if token_filename: write_token_file( token_filename oauth_token oauth_token_secret) print() print( that s it! your authorization keys have been written to %s. % ( token_filename)) return oauth_token oauth_token_secret </code></pre> i m calling the interesting function like this: <pre><code>twitter.oauth_dance( my app name consumer_key consumer_secret my_twitter_creds) </code></pre> i would like to change the input method (see the beginning of the code in the try block) but without changing the code of the module. i want to do it from the user side. is it possible edit: a not working example: <pre><code>import twitter twitter.oauth_dance._input = none # twitter._input = none consumer_key = hi consumer_secret = hello my_twitter_creds = ./config/twitter_credentials if not os.path.exists(my_twitter_creds): twitter.oauth_dance( my app name consumer_key consumer_secret my_twitter_creds) oauth_token oauth_secret = twitter.read_token_file(my_twitter_creds) tweet = twitter.twitter(auth=twitter.oauth(oauth_token oauth_secret consumer_key consumer_secret)) tweet.statuses.update(status= hello world! ) </code></pre>,python | |
| how do i get a java file object without creating a corresponding file i have an interface that takes java file object but i have a string i want to send to it. without writing to disk how would i create an object suitable to send to that interface i have the necessary data/metadata like length timestamp content and filename and i want to include them in the file.,java | |
| iphone - multiple instances of an application running when i start my app for the first time after installing it and exit before the splash screen disappears from then on launching from the multitasking menu it comes up with a black screen. if i click on it from the home screen it loads fine but every time i try from the multitasking menu it is a black screen until i terminate it. if i add the uiapplcationexitonsuspend property to the properties list the black screen continually appears until i restart the device. any help is appreciated. thanks sj,iphone | |
| python dict comprehension summing from objects given a setup like this: <pre><code>class foo(): state = x amount = 1 a = foo() b = foo() c = foo() c.state = y foos = [a b c] </code></pre> i want to get a dict that has keys = <code>object.state</code> values = <code>sum(object.amounts of objects with that state)</code>. in this case: <pre><code>{ x : 2 y : 1} </code></pre> i want to do this automatically so i don t need to know the different possible states in advance. for sure i could iterate through in some boring manner like this: <pre><code>my_dict = {} for foo in foos: try: my_dict[foo.state] += foo.value except (keyerror typeerror): my_dict[foo.state] = foo.value </code></pre> but that is a bit verbose and i m wondering if there s a nicer way to do it maybe with dict comprehensions or something but my efforts so far have been in vain.,python | |
| replacing of numbers to zero in a sum i have to define a function <code> func(a b c) </code> in which there are 3 variables it calculates their sum. i have to check if there value is greater than <code> 13 </code> then the number becomes <code> 0 </code> eg. <code> def func(3 4 14) </code> ---> 7 (3+4+0) i ve tried this code below: <pre><code>def no_teen_sum(a b c): if(a>13): a=0 elif(b>13): b=0 elif(c>13): c=0 return a+b+c </code></pre> but it didn t work. am i doing wrong somewhere please suggest me the correct way to do it...,python | |
| generate unit tests for hashcode equals and tostring methods is there any tool/library which can automatically generate the tests for my hashcode and equals methods looking at the instance variables involved in these methods,java | |
| why does if type(x) not list return an error i would like to use <code>if type(x) not list</code><br>instead of <code>if not isinstance(x list)</code><br>am i missing something <code>if not isinstance(x list)</code> seems excessive<br>since i m not checking for class inheritance.,python | |
| is the visiblerect method also available on iphone how do i find it out apple says that there is a visiblerect method on the mac (<a href= http://developer.apple.com/documentation/cocoa/conceptual/cocoaviewsguide/coordinates/coordinates.html rel= nofollow noreferrer >source</a>) that helps doing graphic operations only in the visible content rectangle from an view. when i try to access that method xcode gives me no completion hint so it seems that this one is not available on iphone. how could i find that out,iphone | |
| iphone app: how was emoji programmed how was emoji programmed i m assuming the app downloads and installs a language pack in the core operating library then the app simply instructs the user how to enable multiple languages..,iphone | |
| sum elements of a list in python i have a list like this: <pre><code>a = [1 2 3] </code></pre> i want to add all elements and form: <pre><code>a = [6] or a = 6 </code></pre>,python | |
| forcing focus to remain on a form text element until the value is numeric i have a form which has input fields that expect numbers only. i m using javascript to validate the form when the value of the field changes. if the value is numeric do nothing. if the value is not numeric set it to zero and put focus in that text field. essentially i m trying to trap the cursor in that field until a numeric value is entered. for some unknown reason focus is not being placed on that form element. <code>cell.focus()</code> does not work. i ve even tried <code>document.getelementbyid(cel.getattribute( id )).focus();</code> what might i be doing wrong <pre><code><html> <head> <script> function nan(cell){ if (cell.value != ) { var re = /^(0|[1-9][0-9]*)$/; if (re.test(cell.value) == false) { alert( you must supply a numeric value greater than 0. ); cell.value = 0 ; cell.focus(); } } } </script> </head> <body> <input type= text name= num value= onchange= nan(cell) /> </body> </html> </code></pre>,javascript | |
| possible class error <pre><code>class randomagain { public static void main(string args[]){ scanner tuna = new scanner(system.in); boom boomobj = new boom(); system.out.println( ~~calculator~~ ); system.out.print( enter your 1st number: ); int first_num = tuna.nextint(); system.out.print( enter your 2nd number: ); int second_num = tuna.nextint(); system.out.print( what do you want to do [plus sub mult div]: ); string choice = tuna.nextline(); if (choice == plus ) boomobj.addition(first_num second_num); if (choice == sub ) boomobj.subtraction(first_num second_num); if (choice == mult ) boomobj.multiply(first_num second_num); if (choice == div ) boomobj.division(first_num second_num); else {system.out.println( please check the fields again!! );} } } </code></pre> boom class: <pre><code>public class boom { private int sub_final add_final multi_final div_final; public void addition(int a int b){ add_final = a + b; system.out.println(a+ + +b+ = +add_final); } public void subtraction(int a int b){ sub_final = a - b; system.out.println(a+ - +b+ = +sub_final); } public void multiply(int a int b){ multi_final = a * b; system.out.println(a+ * +b+ = +multi_final); } public void division(int a int b){ div_final = a + b; system.out.println(a+ / +b+ = +add_final); } } </code></pre> when i run it in the 3rd command it is like : <pre><code>what do you want to do [plus sub mult div]: please check the fields again!! </code></pre> and i can t type anything as its reply.,java | |
| iphone 3.0 beta - what effects does it have on the iphone i am currently developing applications on the 2.2.1 sdk and considering to upgrading my iphone to sdk 3.0. can my phone still be used to run old version programs (2.1 2.2 etc) call send sms and so on or will it be restricted to only be used to test 3.0 developed programs thanks hans espen,iphone | |
| how to create tuple from materialgroupmaster objects i have a data structure like this : <pre><code>[<materialgroupmaster: test> <materialgroupmaster: test material> <materialgroupmaster: last>] </code></pre> how would i get this as follows <pre><code>( test test material last ) </code></pre>,python | |
| email authentications hey can any one suggest me is there any api or example for authenticating email addresses in iphone app,iphone | |
| get query string from href attribute via javascript i m building an interface that uses ajax with an html fallback. i m setting up all my <code><a></code> tags to work without ajax first and if javascript is enabled each link will have an onclick function attached to it that sends the same exact query string to a different page on my server. my original link will look like this: <pre><code><a class= ajax href= http://example.com/page key1=value1&key2=value2 >link</a> </code></pre> how do i retrieve key1=value1&key2=value2 as a string from the above href link via javascript i will be making ajax requests that look like <code>http://example.com/ajax key1=value1&key2=value2</code>.,javascript | |
| binding a specific context to a function: why does my hack work in secrets of javascript ninja listing 5.7(pg 100) the assertion fails: <pre><code><body> <button id= test >click me!</button> <script> var button = { clicked = false; click: function(){ this.clicked = true; assert(button.clicked the button has been clicked ); } }; var elem = document.getelementbyid( test ); elem.addeventlistener( click button.click false); </script </code></pre> the author s solution was binding the context to an event handler in the listing 5.8. however i found editing the click function in the following ways worked. <pre><code> click: function(){ button.clicked = true; assert(button.clicked the button has been clicked ); } click: function(){ this.clicked = true; assert(this.clicked the button has been clicked ); } </code></pre> i don t understand why it works an answer to this that expands my javascript knowledge would be appreciated.,javascript | |
| python decorator variable access i have a decorator function <code>my_fun(i k)</code> and it is applied to a function <code>add(x y)</code> as such <pre><code>@my_fun(4 5) def add(x y): return x+y </code></pre> i am new to python would like to know if i am writing the <code>my_fun</code> function <ol> <li>how can i access <code>x y</code> in the add method in <code>my_fun</code> </li> <li>how can i access the return value of add in the decorator function </li> </ol> i am a little confused on syntax and concepts any explanation would be help.,python | |
| java jna unsatisfiedlinkerror i am following this tutorial : <a href= http://stuf.ro/calling-c-code-from-java-using-jna rel= nofollow >http://stuf.ro/calling-c-code-from-java-using-jna</a> . the difference is that my class is called main.c not ctest.c. i ve created a library inside the project folder as it says there. on the next step i created the java file with this line modified : <pre><code>ctest ctest = (ctest) native.loadlibrary( ctest ctest.class); </code></pre> to <pre><code>ctest ctest = (ctest) native.loadlibrary( main ctest.class); </code></pre> i have imported jna-4.1.0.jar to my project. on run it gives me this error : <pre><code>exception in thread main java.lang.unsatisfiedlinkerror: unable to load library main : native library (win32-x86-64/main.dll) not found in resource path ([file:/d:/eclipse/workspace/rxtx/bin/ file:/d:/eclipse/workspace/rxtx/lib/rxtxcomm.jar file:/c:/users/angelo/downloads/jna-4.1.0.jar]) at com.sun.jna.nativelibrary.loadlibrary(nativelibrary.java:271) at com.sun.jna.nativelibrary.getinstance(nativelibrary.java:398) at com.sun.jna.library$handler.<init>(library.java:147) at com.sun.jna.native.loadlibrary(native.java:412) at com.sun.jna.native.loadlibrary(native.java:391) at helloworld.main(helloworld.java:9) </code></pre> where do i place my main.c and what do i do with the libctest.so file,java | |
| simple time parsing of a string in the below code i need to get a parse exception.but the program somehow converts it to a valid date. but if i give dthours as 07:0567 it is giving parse error.so how to keep the exact format shown. can anyone tell me what to do to throw an error if the date string deviates from the given format ( hh:mm:ss ) even by a single character. <pre><code>public static void main(string[] args) { string dthours= 07:4856:35563333 ; simpledateformat df = new simpledateformat( hh:mm:ss ); try { date d = df.parse(dthours); system.out.println( d +d); } catch (parseexception e) { system.out.println( parseerror ); } </code></pre>,java | |
| printf error: int cant be object i have this simple java code: <pre><code>package cal; import java.util.scanner; public class cal { public static void main(string[] args) { scanner input = new scanner(system.in); int n1 n2 sum; system.out.print( enter first: ); n1 = input.nextint(); system.out.print( enter second: ); n2 = input.nextint(); sum = n1 + n2; system.out.printf( sum is %d\n sum); } } </code></pre> the error is at printf it requires (string object[]) my sum is int but cant it be considered as an object actually first this code ran well but after i made some change in the path to workplace the code started to have this error,java | |
| use javascript to unhide cursor when users are typing browsers today will automatically hide the cursor when detecting typing. this is a probability when i set up keyboard shortcut on my web applications. the cursor is hidden after users press any key on the keyboard - and only become visible after they move the mouse around. this is a big problem to shortcuts that meant to trigger while some elements are being hovered. i ve noticed gmail effectively unhides the cursor when typing keyboard shortcuts on the keyboard (you will see a blink). does anyone know how it was done,javascript | |
| compile java source from string without writing to file <a href= https://stackoverflow.com/a/2946402/1675615 >here</a> i have found some good example: <pre><code>// prepare source somehow. string source = package test; public class test { static { system.out.println(\ hello\ ); } public test() { system.out.println(\ world\ ); } } ; // save source in .java file. file root = new file( /java ); // on windows running on c:\ this is c:\java. file sourcefile = new file(root test/test.java ); sourcefile.getparentfile().mkdirs(); new filewriter(sourcefile).append(source).close(); // compile source file. javacompiler compiler = toolprovider.getsystemjavacompiler(); compiler.run(null null null sourcefile.getpath()); // load and instantiate compiled class. urlclassloader classloader = urlclassloader.newinstance(new url[] { root.touri().tourl() }); class< > cls = class.forname( test.test true classloader); // should print hello . object instance = cls.newinstance(); // should print world . system.out.println(instance); // should print test.test@hashcode . </code></pre> <strong>question</strong>: is it possible to achieve exactly the same thing without writing to a file <strong>@edit:</strong> to be more exact: i know how to compile from string (overloading javafileobject). but after doing this i have no idea how to load the class. i probably missed the output-write part but this also a thing i would like not to do. <strong>@edit2</strong> for anyone interested i created this small project to implement discussed feature: <a href= https://github.com/krever/jimcy rel= nofollow noreferrer >https://github.com/krever/jimcy</a>,java | |
| overriding the python help() function behaviour i ve created a python proxy class that calls methods on a remote object. i ve used a closure to override the <strong>doc</strong> attribute on my dynamically created methods so that <pre><code>help(obj.method) </code></pre> gives me the help on my remote object method. i then decided that i wanted to do the same thing for the object attributes. i have in my class something like: <pre><code>class proxy: def __getattr__(self name): # do stuff to get remote attribute </code></pre> now when calling code like this: <pre><code>help(obj.attribute) </code></pre> i of course get the doc string of the queried value type (string int or whatever was returned). the only way i can think to avoid this is to get a stack dump inside <code>__getattr__()</code> identify and look for the help() call and conditionally return object/class instead of the remotely queried value. this is obviously non-ideal because there are quite a few ways one could specify the same thing however it would help me from the command-line which is the most likely place i am to use this so perhaps better than nothing. is there a better way,python | |
| anyway to close this window is there anyway to get the loadedafter15seconds.com to close after 20 seconds code at <a href= http://pastebin.com/480ttqj9 rel= nofollow >http://pastebin.com/480ttqj9</a> <strong>basically i want a button that goes to a page. that page loads a list of urls after a certain amount of time and then closes them after a certain amount of time.</strong>,javascript | |
| area of a rectangular in a plane i am new to programming and i have difficulties with solving a problem. i am coding it in python. may i have some help please so the condition says: a rectangular is set on 2 of its opposite angles (x1 x2) and (y1 y2). find the <strong>area</strong> and the <strong>perimeter</strong> of the rectangular. the input is read from the console. the numbers <code>x1 x2 y1 y2</code> are given one by one on a line. inputs and outputs: <a href= https://i.stack.imgur.com/7lggq.png rel= nofollow noreferrer ><img src= https://i.stack.imgur.com/7lggq.png alt= enter image description here ></a> an example: <a href= https://i.stack.imgur.com/ihhea.png rel= nofollow noreferrer ><img src= https://i.stack.imgur.com/ihhea.png alt= enter image description here ></a> my code: <pre><code>x1 = float(raw_input( x1 = )) y1 = float(raw_input( y1 = )) x2 = float(raw_input( x2 = )) y2 = float(raw_input( y2 = )) if x1 > x2 and y1 < y2: a = x1 - x2 b = y2 - y1 else: a = x2 - x1 b = y1 - y1 area = a * b perimeter = 2 * (a + b) print area print perimeter </code></pre>,python | |
| can java classes be outsourced like php with include can java classes be outsourced i have e.g. a huge database java with over 1000 lines and much methods to do database stuff such as insert update etc. i want move similar methods to another file to get a clear file. php can do that with include(filename) . how can java do that,java | |
| call viewdiddisappear in tabbar based application i am using tab bar based iphone application.i have set <code>nstimer</code> in first two tabs.i want to invalidate this timer. so i am invalidating in <code>viewdiddisappear</code>. but when i am clicking on different tab it will never call <code>viewdiddisappear</code>. i don t know how to call this method please help me...thanking you in advance...,iphone | |
| polymorphism has been lost with casting i have a class named <code>student</code> and subclass called <code>athletestudent</code>: <pre><code>public class student { protected string name; protected string age; public void hello () { system.out.println( hello i m student ); } } public class athletestudent extends student { protected string sport; public void hello () { system.out.println( hello i m athletestudent ); } public void changedepartement() { ..... } } </code></pre> now let s take these test cases: <pre><code>athletestudent ats = new athletestudent( test 22 karate ); student std; std = ats; // upcasting ok /* ats and std point to the same object i.e athletestudent */ ats.hello(); /* hello i m athletestudent => polymorphism ok */ std.hello(); /* hello i m athletestudent => polymorphism ok */ </code></pre> what i do not understand here is this one: even though <code>std</code> references a <code>athletestudent</code> i cannot access the method <code>changedepartement()</code>. <pre><code>std.changedepartement(); // doesn t work </code></pre> only when we cast this object like this one it works <pre><code>((athletestudent) std).changedepartement(); // ok </code></pre> why we need to force <code>std</code> to be an <code>athletestudent</code> object knowing that it is treated as a <code>athletestudent</code> object with the first example <code>std.hello()</code> prints the one from <code>athletestudent</code> implementation without problems.,java | |
| how to print the result of a method in a different class i want to print my method compute located in the class computedivisor in the divisors class. how do i get it to who the divisors <pre><code>public static void main(string[] args) { scanner s = new scanner(system.in); computedivisors cd = new computedivisors(); system.out.println( enter an integer: ); int num = s.nextint(); system.out.println( the divisors of + num + are: ); cd.compute(); //why doesn t it print s.close(); } </code></pre> - <pre><code>public void compute(){ for (i = 2; i <= num / 2; i++) { if (num % i == 0) { system.out.print(i + ); } } } </code></pre> },java | |
| how to test localized string on simulator i am using nslocalizedstring(); function for my localized strings. even though i change my preferred language in simulator settings my string still get shown up in english. can we test the nslocalizedstring(); from simulator if so how can any one guide me through this please -- regards u suf,iphone | |
| check if the second element of tuples in list of tuples are all the same i would like to check if the second element of tuples in list of tuples are all the same <pre><code>features = [(a b) (c b) (a d)] </code></pre> the first element of the tuple can be different. <pre><code>x = [] for feature geom_type in features: x.append(geom_type) y = collections.counter(x) print len([i for i in y if y[i]>1]) </code></pre>,python | |
| how to make asynchronous call using nsthread i have made one list of images + respective data in tableview. it takes long time while loading i want to make multithreading two methods 1> <strong>parsing of data</strong> 2> <strong>parsing of images</strong> i want to execute <strong>parsing of data</strong> first after that i can select any of rows listed even though images not been loaded(/parsed) because the images is parsed after the parsing of data and it takes long time. from where should i call these both the methods. and how enable the selection on row after parsing of the data... how to do multithread both the methods waiting for your great responce thanking in advance,iphone | |
| rounding a percentage in python <pre><code>if act == block and enemy_decision != 2: percentage_blocked = (enemy_attack - block)/(enemy_attack) * 100 print( you have blocked %s percent of the enemy s attack. % percentage_blocked) </code></pre> from this i am getting numbers such as 82.113124523242323. how can i round this percentage to the 10th place e.g. 82.1.,python | |
| disable keyboard for one of the text fields in a table view hi i am new to the iphone developement.kindly help me out. i want to disable the keyboard for one of text field in a table view.i have assigned a pickerview to that particular field.so i need just the pickerview and not the keyboard.,iphone | |
| get responsebody as characters i am trying to get response from a website. i am using <code>httpurlconnection</code> class. this is my code: <pre><code> bufferedreader in = null; in = new bufferedreader(new inputstreamreader(httpcon.getinputstream())); string line; while ((line= in.readline()) != null) { system.out.println(line); } </code></pre> all i get is : �q�u����0�_������q�j��r衔�j1�4q�ȓ��d�%�ޑl/��^�0�ϯ�7�[6@~ȟ�k��s��+u how can i decode it thank you.,java | |
| location.href is decoding the url i have a javascript function: <pre><code>function quotebegone(url) { location.href = url; } </code></pre> the url that is passed is encoded for example <code>http://www.target.com/page.asp name%3djohn%27s%2bproject</code> but when the new page loads the url is unencoded - <code>http://www.target.com/page.asp name=john s+project</code>. the apostrophe is messing up the page so i would like to keep it encoded in the url but it doesn t seem to stay that way. i assume the location.href function is interpreting the url before passing it along. any suggestions,javascript | |
| "call callback from created <script> in created <iframe> i have a js code which should create a new <em>iframe</em> then create a new <em>script</em> with a code and insert the created <em>script</em> into created <em>iframe</em>. everything works fine except <em>callback</em> which is defined in main s page js and which i should call from the inserted <em>script</em> because it isn t defined in the created <em>script</em>. my code looks like: <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>(function(){ | |
| function makeiframe(adelement callback){ | |
| var iframe = document.createelement( iframe ); | |
| iframe.appendchild(createscripttag()); | |
| adelement.appendchild(iframe); | |
| adelement.parentnode.insertbefore(iframe adelement); | |
| function createscripttag(){ | |
| var scripttag = document.createelement( script ); | |
| scripttag.innerhtml = getfunctionbodyasstring(innercode); | |
| return scripttag; | |
| } | |
| function innercode(){ | |
| callback(); | |
| } | |
| function getfunctionbodyasstring(fun){ | |
| return fun.tostring().match(/function[^{]+\{([\s\s]*)\}$/)[1]; | |
| } | |
| } | |
| makeiframe(document.getelementbyid( sth-id ) function(){ | |
| alert( works! ) | |
| }); | |
| }());</code></pre> | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><!doctype html> | |
| <html> | |
| <body> | |
| <div id= sth-id ></div> | |
| <script src= test.js ></script> | |
| </body> | |
| </html></code></pre> | |
| </div> | |
| </div> | |
| my question is how can i call <em>callback</em> function from the creted <em>script</em> in the created <em>iframe</em> ps. i m not very experienced with js any suggestion to present code will be hopefull :) <strong>update 1:</strong> the only place where i can define my <em>callback</em> function it s in the js <em>script</em> (test.js) and also from this place i should call function (in example <em>makeiframe</em>) which runs all other logic.",javascript | |
| when is it okay to attach properties to window while browsing i frequently take a look at the source code of webpage to check how certain things have been realized. one thing i frequently see is stuff like: <code>window.myapp.apikey = 12345;</code> or <code>window.myapp.welcomemsg = hello there! ;</code> i always was under the impression that it s bad practice to attach properties to the window object (like explained in this <a href= https://stackoverflow.com/questions/12743007/can-i-add-attributes-to-window-object-in-javascript >accepted answer</a>) but it looks like <code>myapp</code> is used as a kind of namespace & since it s often the brand name it s unlikely to clash with anything. still – how is it okay to do it this way are there any indicators for that (i.e. when i know no 3rd libraries will be used in the project which can change quickly in real life).,javascript | |
| background image size iphone normal background image is 320x480 pixels. and for retina is 640x960 pixels. now i have to put my background image and i have status bar(20) and navigation bar (44). so i have to reduce 64(20+44) from 480(normal) or from 960(retina) <ol> <li>if i reduce 64 from normal then normal image will be 320x416 pixels and retina will be 640x832 pixels.</li> <li>if i reduce 64 from retina then normal will be 320x448 and retina will be 640x896 .</li> </ol> it is confusing me.. this 64(20+44) i reduce from which image type because other one will be exactly half or double of it.,iphone | |
| when running my program nothing is shown in the console <pre><code>public class quartz { public static void main (string[] args) { int i = 0; int sum = 0; int[] n1 = {54 40 37 64 81 15 65 72 61 57 83 3 67 12 30 54 11 51 3 78 48 31 68 77 64 68 95 68 35 82 57 26 67 41 47 80 36 88 5 9 55 87 77 8 65 31 7 79 49 22 32 94 34 12 20 30 91 12 57 77 37 96 22 29 17 76 36 56 80 33 20 65 57 40 50 97 20 92 25 14 19 84 12 62 20 42 99 52 88 29 75 48 27 73 46 72 48 84 19 55}; while (i < n1.length) sum += n1[i]; i = 0; system.out.println( sum: + sum + . ); system.out.println( average: + (sum/n1.length) + . ); double[] ne = {-0.6179074665219488 0.012080423982449795 -0.21346000509541063 0.08299652983289585 2.44401680106775 4.902778859313734 1.7132831483350532 -4.2004763396051725 -4.043856195861675 -2.6728507023602326 5.181911533071974 -2.1235877432845354 7.603895698367564 -5.6730748575837975 -3.5868701412258464 8.50824673494424 1.9530312960520657 1.4057711751329447 -6.6010520166956885 -0.8889270825881894 -3.066437913144831 -1.047977711607209 -0.6183425325427638 -1.9567474971238643 -1.6108985491087715 -3.4762343504063105 -0.7819967483948718 1.2787199500848474 -1.724036624119682 4.134045084705252 -4.302090407212001 4.522452909896921 -9.510982189042458 4.483571903648103 4.734972592935479 1.3007048393668028 -1.5733757395516363 -1.9343054344201707 6.787212280236046 -0.35603892339489995 -1.3414921239899753 -0.9393551256779856 -1.9298884254368263 6.043295105337908 2.9330671137121733 2.8561036619044047 -0.8293767467550212 6.123622142714353 -2.2350961485598777 7.20722805161423 5.515389689089437 -2.7666432567169745 -4.344590134196103 3.3453531590362613 10.413288779778698 0.3986583788822756 1.8156402784897105 -6.495232639280744 -2.5586148068696852 2.456750085945401 -2.0241915465317994 2.6640207424833706 -3.221638093253812 -0.13291701098446618 4.525894152095317 3.833943185257407 -2.892260297173234 -3.247865929061468 6.129696012756685 4.451839001858698 -3.142375819178058 -1.0758596832313212 -7.85705595464708 -3.376343621066232 -3.993944532318441 13.146850947670861 -1.3900676627648902 3.8600378751921256 3.9652071948870447 -2.4382860496298324 3.0864605092488304 -10.769089293963074 1.9773754511588617 4.826841112732377 7.9219782116860324 -3.266132871461332 1.8118819669439024 0.698579723806034 7.119629551067371 -0.9141128559070014 1.5143207368301361 -8.587596597534729 -0.9387144566983379 2.5641381148921805 10.628593146418485 3.794317923770138 6.2802756227726615 -0.05171930511667566 0.8736426098894451 0.6226851580000003}; double[] nw = {9.631212195521316 -2.1235831279282698 3.7468670477204773 -4.559878135521824 3.2444286767576545 6.2877828741148605 6.520597627024687 2.642307472836288 1.2002893113069557 0.32620641006622675 -3.368962812990781 -2.588868228199504 4.356518441561512 -0.5955112302723241 0.3875648501871751 -2.9311051175998064 2.0095554763173666 -1.228769483871199 5.900445902470515 0.41527619439744434 2.9752128071432145 4.805920315662717 -4.797853823364673 5.752192282393844 2.9073605365834556 2.4870719041084497 -1.7994046436584152 7.79554996548367 4.4174973514255536 2.084039895979635 0.6281302992116424 -3.1466915662704524 3.646400672147826 0.9609952887592054 -6.070082172976056 -0.9392599054917704 0.904301836858967 5.926867039519574 3.238559698585232 -4.439332575192746 1.352444182896236 -0.24594080100384297 -1.6395807550351367 3.591208179788307 4.15757174804611 -3.5334824535956173 0.5302366137985215 9.564674975899017 4.175389023096817 -0.9827335882191762 4.305890552392608 3.059083687714633 2.3224548745551488 0.1934380213592375 1.0235814 1.1716370685853148 -2.931711339626567 -4.214035402157694 -1.0093422753964358 -4.843082160061708 -7.148710177896536 -1.910725804980465 -0.22905523068711164 3.8200222938181367 -1.744095856344644 1.354958988184811 0.9933832752568843 0.8820951391051288 -2.062035935350486 -7.633897329029599 0.49911238393151325 -1.1684033502541722 4.090099097765502 4.566828839384462 0.6901115935421007 -4.30695891725898 -5.637531096381548 2.6920329212478507 -1.522395621132775 6.351734133984433 0.4895678835360122 -4.755548841958967 -2.826990702897114 1.974618789378563 -6.999938959339396 0.6289774718852977 3.2732671487606266 -1.2781272997669557 6.725303989648547 -7.163688015215646 5.547683884070125 -3.0189942298996213 -0.2487963910538069 -0.46314538549764894 5.3913279138183645 -4.018219623545416 6.491084381355617 -1.5629014732514819 -6.557894883162792 -3.856421007612216}; int sumeeven = 0 sumeodd = 0 sumweven = 0 sumwodd = 0; while (i < 99) { sumeeven += ne[i]; sumeodd += ne[i+1]; i += 2; } i = 0; while (i < 99) { sumweven += nw[i]; sumwodd += nw[i+1]; i += 2; } system.out.println( front coordinates: ); system.out.println( latitude: + sumeeven + longitude: + sumeodd); system.out.println(); system.out.println( back coordinates: ); system.out.println( latitude: + sumweven + longitude: + sumwodd); } } </code></pre> this code has no errors and runs but the console is empty. i have my run configurations set up correctly so not sure what the issue is. i also made sure that my console was linked to this project and not another and it is. i m running eclipse neon if that changes anything. some info about the project although seemingly irrelevant: n1 calculates the sum of that array of ints and then take the average of the sum ne and nw calculate the sum of the even parts of each array and the odd parts of each array and adds each up individually and they end up being latitudinal and longitudinal coordinates.,java | |
| javascript issue my div won t move yesterday in class my teacher put up some code for us to test at home but i can t seem to get the code to work. what the code is suppose to do is move a div while holding the mouse down. i showed my friend and we think the problem is here: <pre><code>calculator.style.top = getstyle(calculator top ); calculator.style.left = getstyle(calculator left ); function getstyle(object stylename) { if (window.getcomputedstyle) { return document.defaultview.getcomputedstyle(object null).getpropertyvalue(stylename); } else if (object.currentstyle) { return object.currentstyle[stylename]; } } </code></pre> but we still can t seem to make it work. help would be extremely appreciated. also here is the full code just in case you need to see it: <pre><code>diffx = null; diffy = null; off = document.getelementbyid( buttonoff ); on = document.getelementbyid( calcbutton ); calculator = document.getelementbyid( calculator ); calculator.style.top = getstyle(calculator top ); calculator.style.left = getstyle(calculator left ); function getstyle(object stylename) { if (window.getcomputedstyle) { return document.defaultview.getcomputedstyle(object null).getpropertyvalue(stylename); } else if (object.currentstyle) { return object.currentstyle[stylename]; } } function grabcalculator(e) { var evt = e || window.event; calculator = evt.target || evt.srcelement; var mousex = evt.clientx; var mousey = evt.clienty; diffx = parseint(calculator.style.left) – mousex; diffy = parseint(calculator.style.top) – mousey; addevent(document mousemove movecalculator false); addevent(document mouseup dropcalculator false); } function movecalculator(e) { var evt = e || window.event; var mousex = evt.clientx; var mousey = evt.clienty; calculator.style.left = mousex + diffx + px ; calculator.style.top = mousey + diffy + px ; } function addevent(obj eventtype fnname cap) { if (obj.attachevent) { obj.attachevent( on + eventtype fnname); } else { obj.addeventlistener(eventtype fnname cap); } } function removeevent(obj eventtype fnname cap) { if (obj.attachevent) { obj.detachevent( off + eventtype fnname); } else { obj.removeeventlistener(eventtype fnname cap); } } function dropcalculator(e) { removeevent(document mousemove movecalculator false); removeevent(document mouseup dropcalculator false); } function main() { alert( test ); //store top and left values of calculator calculator.style.top = getstyle(calculator top ); calculator.style.left = getstyle(calculator left ); calcbuttonstate = true; } window.onload = main; </code></pre> thanks again! sandro <hr> edit: added jsfiddle link: <a href= http://jsfiddle.net/7225j/ rel= nofollow >http://jsfiddle.net/7225j/</a> (also the output looks horrible because its not suppose to be resized to that small),javascript | |
| how to call all of the xib/nib files properties i created a tabbarcontroller application for the iphone that has a mainview.xib with a tabbar two tabbar buttons and two additional views. the additional views have a uimapkit and a uitableview. what i want to do is in the tableview i want to invoke the uimapkit view when ever a user tabs on a row. what i did: -(void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath { <pre><code>mapviewcontroller *nview = [[mapviewcontroller alloc] initwithnibname:nil bundle:[nsbundle mainbundle]]; [self presentmodalviewcontroller:nview animated:yes]; </code></pre> } which creates an action for the rows. my problem is that it only shows the uimapkit and not the tabbarcontroller. the tabbarcontroller is in the mainwindow. is there some code that i m missing,iphone | |
| 404 error document not found for javascript file when installing instafeed onto wordpress site i uploaded the file <code>instafeed.min.js</code> to my websites server. i then added the <code>instafeed script</code> to the very end of the <code><body></code>. this is the exact script: <pre><code><script src= http://www.carolinewhitephotography.com /wp-admin/js/instafeed.min.js ver=4.4 type= text/javascript ></script> <script type= text/javascript > var feed = new instafeed ({ get: tagged tagname: awesome clientid: my-id template: <a href= {{link}} ><img src= {{image}} /></a> }); feed.run(); </script> </code></pre> within the page i have added this as the directions say to: <pre><code><div id= instafeed ></div> </code></pre> nothing shows up on the page. <a href= http://www.carolinewhitephotography.com/instagram/ rel= nofollow >http://www.carolinewhitephotography.com/instagram/</a> i inspected the element and i get two errors: <pre><code>uncaught referenceerror: instafeed is not defined </code></pre> and <pre><code>get http://www.carolinewhitephotography.com/ wp-admin/js/instafeed.min.js 404 (not found) </code></pre> i contacted my host to check the file root and it is indeed there. any ideas on how to get this to work laura,javascript | |
| iphone: how to find string in a complete string how to get the a certain string from a complete string. for ex: i have a complete string like below. <pre><code> http://serverurl.com/mediadata/album.wav ; </code></pre> i need to get album.wav from the above string. the name varies with different url string. how to get it thanks.,iphone | |
| where i get the life cycle between uiview uinaviagtioncontroller and uiviewcontroller i am a beginner in iphone development. i very confused on the behaviour or life cycle between uiview uinavigationcontroller and uiviewcontroller. please suggest me any documentation on it which has to be fully understandable diagrammatically.,iphone | |
| why is the dict.keys not iterable <code>node_name</code> is a string. shouldn t this return a list of keys in the node_list dictionary which can be iterated over why does the error say it is not iterable <pre><code>class graph: def __init__(self): self.node_list = {} self.number = 0 def node(self node_name): if node_name in self.node_list.keys: ... file pythonproject2.3.py line 10 in node if node_name in self.node_list.keys: #returns list of keys typeerror: argument of type builtin_function_or_method is not iterable </code></pre>,python | |
| iphone how to create scrollable filter like mashable app i d like to create a scrollable filter just below the navigation bar like in the mashable iphone app. here s what it looks like: <a href= http://itunes.apple.com/us/app/mashable/id356202138 mt=8 rel= nofollow >http://itunes.apple.com/us/app/mashable/id356202138 mt=8</a> <a href= http://img20.imageshack.us/i/mashable.png/ rel= nofollow >http://img20.imageshack.us/i/mashable.png/</a> does anyone know how to do this,iphone | |
| object.keys in reverse order i have interesting task. i solved the half of it but can t to find the solution to solve the rest. hope someone can point me to the right direction. i found the <a href= https://stackoverflow.com/questions/15690706/recursively-looping-through-an-object-to-build-a-property-list >solution</a> close to mine task. but mine is slightly different and use es6. there is nested object. <pre><code>let somelist = { value: 1 next: { value: 2 next: { value: 3 next: { value: 4 next: null } } } }; </code></pre> i received all values. <pre><code>function reverseprint(linkedlist) { object.keys(linkedlist).map(key => { let mykey = linkedlist[key]; typeof mykey == object console.log(reverseprint(mykey)) : console.log(mykey); }); } reverseprint(somelist); </code></pre> but the problem is: how i can get all values in reverse order fiddle: <a href= https://jsfiddle.net/l83puqbz/17/ rel= nofollow noreferrer >https://jsfiddle.net/l83puqbz/17/</a> i tried use reduce for to make array and reverse it but every value was in separate array. fiddle <a href= https://jsfiddle.net/l83puqbz/20/ rel= nofollow noreferrer >https://jsfiddle.net/l83puqbz/20/</a> any help will be greatly appriciated.,javascript | |
| is there a way to determine the setting of the ring/silent switch on the iphone i am trying to figure out from my code whether the ring/silent switch is on ring or silent. is there a way to determine this from my program. thanks,iphone | |
| iphone: get uilabel width in cellforrowatindexpath i have a uitableview with a custom row. on my custom row i have uilabel with autosizing by width mask that is why in portrait it has one width and in landscape another. in my cellforrowatindexpath i should get label width: <pre><code>- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath: (nsindexpath *)indexpath { uilabel *mylabel = (uilabel *)[cell viewwithtag:2]; float width = mylabel.frame.size.width; } </code></pre> and when i run application everything is fine and width is good. but when i rotate device to landscape cellforrowatindexpath called before uilabel changed its frame and i v got the same width as in portrait. so how to be how to get right width when i rotate device the one idea that comes on my mind is to reload tableview in didrotateforinterfaceorientation...is there any other solutions thanks... <strong>update:</strong> one more thing when i start application in landscape mode width is still like in portrait. why how to fix that,iphone | |
| how to create viewbased application in xcode 4.2 without using storyboard i am a neewbie in iphone develement i am trying to create single view application using xcode 4.2 i want to move from one view to another view . is there any way to push view from one to other without using storyboard,iphone | |
| javascript - making 2 setinterval() be synchronous i have 2 functions calling setinterval but i need them to be synchronous. here is my code(yes they are really simple). <pre><code>var number1 = 0; function caller(){ go(); come(); } function go() { anim1 = setinterval( doactiongo() 20); } function come() { anim2 = setinterval( doactioncome() 20); } function doactiongo(){ if(number1 < 1023) { number1++; } else { clearinterval(anim1); } } function doactioncome() { if (number1 > 0) { number1 = number1 - 1 } else { clearinterval(anim2); } </code></pre> functions doactiongo() and doactioncome() would be any code. does anybody know how to solve it regards!,javascript | |
| show the option of triggering my app i noticed that there are some apps can show the option of triggering them when i touch and hold seconds over email attachment. just wonder how can i do like these welcome any comment,iphone | |
| obtain filesize without using filesystemobject in javascript i am working on a project in asp.net in which i want to get the filesize using javascript. actually i got the solution and that is as like the following <pre><code><script language= javascript > var fo =new activexobject( scripting.filesystemobject ); var filename=new string(); function trim(input) { var lre = /^\s*/; var rre = /\s*$/; input = input.replace(lre ); input = input.replace(rre ); return input; } function getsize(filepath) { try { var thefile = fo.getfile(filepath); var size = thefile.size; return size; } catch(err){} } function gettype(filepath) { try { var thefile = fo.getfile(filepath); var filetype = thefile.type; return filetype; } catch(err){} } function showerrorpnl(tblpnl) { document.getelementbyid(tblpnl).style.visibility= visible ; document.getelementbyid(tblpnl).style.backgroundcolor= yellow ; document.getelementbyid(tblpnl).style.bordercolor= silver ; } function uploadfile_checktype(fileuploadctrl messagectrl hfieldctrl tblpnl) { try { var file = document.getelementbyid(fileuploadctrl); var filename=file.value; document.getelementbyid(messagectrl).innertext= ; document.getelementbyid(tblpnl).style.visibility= hidden ; document.getelementbyid(hfieldctrl).value= ; // file can be uploaded. //checking for file browsed or not if((getsize(filename)/1024)>500) { document.getelementbyid(messagectrl).innertext= file size is exceeding 500k ; document.getelementbyid(hfieldctrl).value= 0 ; // file cannot upload. showerrorpnl(tblpnl); file.focus(); return false; } if(gettype(filename)!= microsoft office word 97 - 2003 document && gettype(filename)!= adobe acrobat document ) { document.getelementbyid(messagectrl).innertext= (document.getelementbyid(messagectrl).innertext== only doc and pdf file can be upload!!! : document.getelementbyid(messagectrl).innertext + \n + only doc and pdf file can be upload!!! ); showerrorpnl(tblpnl); document.getelementbyid(hfieldctrl).value= 0 ; // file cannot upload. file.focus(); return false; } } catch(err){} } </script> </code></pre> it is working perfectly unless making some setting in internet explorer properties. in internet properties - > select security tab - > local internet - > click on custom level button - > initialize and script activex controls not marked as safe for scripting - > make it enable save settings and execute program. this is working but i want to get filesize without using <code>var fo =new activexobject( scripting.filesystemobject );</code>,javascript | |
| iphone:server response parsing issues the below is my server response. i would like to parse and use it further. responsestring: <pre><code>{ status : 1 mydata : [ { value : 1 name : david musicurl : http://www.mycomany.net/musicoutput/song1.wav imageurl : http://www.mycomany.net/imageout/david.png } { value : 2 name : martin musicurl : http: //www.mycomany.net/musicoutput/song1.wav imageurl : http: //www.mycomany.net/imageout/martin.png } { value : 3 name : steve musicurl : http: //www.mycomany.net/musicoutput/song1.wav imageurl : http: //www.mycomany.net/imageout/david.png } ] } </code></pre> the below is my code for trying further to parse and use it. but the issue is its not getting parsed from nsjsonserialization instead i m getting null. printing as responsedict:(null) ; jsonerror: (null). <strong>please note</strong> when i m doing like this->nsstring *responsestring = [[nsstring alloc] initwithdata:theresponsedata encoding:nsutf8stringencoding]; i m getting response string as the above output. but i want it as nsdictionary for my further use. please help to resolve this issue. nsmutabledata *webdata; <pre><code>-(void)connection:(nsurlconnection *)connection didreceiveresponse:(nsurlresponse *)response { [webdata setlength: 0]; // [self callgetgroup]; } -(void)connection:(nsurlconnection *)connection didreceivedata:(nsdata *)data { [webdata appenddata:data]; } -(void)connectiondidfinishloading:(nsurlconnection *)connection { nsdata *theresponsedata = [[nsdata alloc] initwithdata:webdata]; if (theresponsedata) { //nsstring *responsestring = [[nsstring alloc] initwithdata:theresponsedata encoding:nsutf8stringencoding]; //nslog(@ responsestring:%@ ; responsestring); nserror *jsonerror; nsdictionary *responsedict = [nsjsonserialization jsonobjectwithdata:theresponsedata options:0 error:&jsonerror]; nslog(@ responsedict:%@ ; jsonerror: %@ responsedict jsonerror); // printing as responsedict:(null) ; jsonerror: (null) [self handleresponse :responsedict]; } } -(void) handleresponse :(nsdictionary *) responsedata { nsstring* value = null; for (id key in responsedata) { nsdictionary *currentdict = (nsdictionary *) [responsedata objectforkey:key]; value = (nsstring*)[currentdict objectforkey:@ status ]; if ( [value intvalue]==1) // success { } } } </code></pre>,iphone | |
| iphone - preventing attachments from showing i am using mfmailcomposeviewcontroller to compose a message on a view. if i attach a pdf or an png jpeg or gif image to the message the image is shown on the mail composition view. if the image is huge it is very difficult for the user to type the message. is there a way to attach a known document to a mfmailcomposeviewcontroller view and prevent the attachment from being opened i want to be able to show the attachment as an attached file icon. i don t want to see its contents opened on the window. is this possible thanks,iphone | |
| how to create a pay roll in which i can add employees without using an array here is the description of my assignment implement a class called employee. an employee has a name and gets a salary. every pay period each employee gets an additional amount in bonus. in your solution include a constructor that accepts the name and salary of an employee. provide a mutator method that accepts the bonus amount and adds it to the salary. provide necessary accessor methods to return the name the salary before the bonus was applied the bonus and the salary after the bonus has been applied. i have all of that done except that when i try to add another employee it just overwrites the variable and prints only the last employee added. heres my code: <pre><code> package employeetester; import java.util.scanner; public class employeetester { public static void main(string[] args) { string employee = ; string continue; string printchart; double salary = 0; double bonus = 0; double totalsalary = 0; scanner user_input = new scanner( system.in ); employeepayroll epr = new employeepayroll(employee salary); system.out.print( would you like to add an employee to the pay roll ); continue = user_input.next(); while (continue.equalsignorecase( yes ) || continue.equalsignorecase( y )){ system.out.println( what is the name of the employee ); employee = user_input.next(); epr.employee(employee); system.out.println( \nwhat is the salary of + employee + ); salary = user_input.nextdouble(); epr.salary(salary); system.out.println( \nwhat is the bonus of + employee + ); bonus = user_input.nextdouble(); epr.bonus(bonus); system.out.print( would you like to add an employee to the pay roll ); continue = user_input.next(); } system.out.println( \nwould you like to print out the pay roll chart ); printchart = user_input.next(); if (printchart.equalsignorecase( yes ) || printchart.equalsignorecase( y )){ //employeepayroll epr = new employeepayroll(employee salary); epr.totalsalary(bonus); epr.printchart(); } } } </code></pre> here s the second part <pre><code>package employeetester; public class employeepayroll { private string employee; private double salary; private double bonus; private double totalsalary; public employeepayroll (string employee double salary){ this.employee = employee; this.salary = salary; } public void employee(string emp){ employee = emp; } public void salary(double slry){ salary = slry; } public void bonus(double bnus){ bonus = bnus; } public double totalsalary(double bonus){ this.bonus = bonus; double totalsalary = salary + bonus; this.totalsalary = totalsalary; return totalsalary; } public void printchart(){ system.out.println( \npayroll ); system.out.println( -------- employee -------- ); system.out.println( name: \t + employee); system.out.println( salary: \t + salary); system.out.println( bonus: \t + bonus); system.out.println( total: \t + totalsalary); system.out.println(); } } </code></pre> how do i print out every employee added the only thing i can think of is using an arraylist but we re not allowed to use that.,java | |
| put the javascript code between the <head> tags i want to put the script between the <code><head></code> tags using the anonymous function and i add the onclick event to change the contents of the tag p but after i click nothing happens. is there anything wrong from my script please help me. thank you <pre><code><!doctype html> <html lang= en > <head> <title>web</title> <script> window.onload=function(){ function rubah1(){ document.getelementbyid( text1 ).innerhtml= sudah berubah text 1 ; } } </script> </head> <body> <p id= text1 >teks 1 sebelum di rubah</p> <button type= button onclick= rubah1(); >rubah text 1</button> </body> </html> </code></pre>,javascript | |
| npe when checking for object so i feel like an idiot but i m trying to implement collision detection and i need to check if there is a tile next to the player. when i go to check for one first i see if the tile i m looking for is actually there. if it is i proceed to select the tile and create a new object out of it. if it s not i don t touch the tile. however i m getting a npe when just trying to check for the tile! here s the checking code (just a small section that s relevant): <pre><code>if (world.tiles[(int) getx() / 32][(int) gety() / 32] != null) { tile t = world.tiles[(int) getx() / 32][(int) gety() / 32]; </code></pre> and here s the tile array in the world class which i pass in to the player: <pre><code> public tile[][] tiles; </code></pre> and how i create them: <pre><code>tiles = new tile[mx][my]; for (int x = 0; x < mx; x++) { for (int y = 0; y < my; y++) { if (rand.nextint(2) == 0) { tiles[x][y] = new tile(x * 32 y * 32 32); }else if(y == 0){ tiles[x][y] = new tile(x * 32 y * 32 32); } } } </code></pre> as you can see i get the player position and then divide by the tile size (32) to get the tile coordinates and then check to see if the tile is null. i know i m passing in the world to the player so that isn t the issue. the issue is that when i look for the tile its null! why,java | |
| java search functionality there is a requirement in my java project where the user will enter the customer name/ number in the front-end screen and hit search button the system should display all the matching customer names with links to the customer details. i have been asked to write a web service to implement this functionality which will fetch the customer records from the database and display it in the front-end. please help me how to do this. thanks in advance!!,java | |
| do some functions take return and other not in python i m trying to figure out why some statements require and return and others do not like below i wrote this and l1.append(val) doesn t need a return but for example l1[val] does does it just depend on the variable <pre><code>l = [1 3 5 7 9 11 2] print original list = l def change_list(l1 val decision): if decision == append : return l1[val] elif decision == ret : l1.append(val) elif decision == instance : return l1.count(val) elif decision == sort : l1.sort() return l1 res=change_list(l 2 append ) print output = res </code></pre> however if i change it to the following (remove the return) it breaks! wh does this happen given some of the conditions need a return to work some do not : l = [1 3 5 7 9 11 2] <pre><code>print original list = l def change_list(l1 val decision): if decision == append : l1[val] elif decision == ret : l1.append(val) elif decision == instance : return l1.count(val) elif decision == sort : l1.sort() return l1 res=change_list(l 2 append ) print output = res </code></pre>,python | |
| java code doesn t work hey guys i am have a problem in java coding. i am using eclipse and my code is as following: <pre><code>public class application { public static void main(string[] args){ int loop = 100; int looop = 90; while(loop > looop) system.out.println(looop); looop = looop + 1; } } </code></pre> the output should be like this: <pre><code>90 91 92 93 94 95 96 97 98 99 </code></pre> but it keeps on printing 90 and doesn t stop the loop.,java | |
| how to bring bigdecimal to fractional power bigdecimal was the choice to store numbers that have up to 5 digits after decimal point. i need to raise the bigdecimal to fractional power (up to 2 digits after decimal point). for example i have to bring 9.09671 to power of 1.51. do i need some conversions from/to bigdecimal how to do it <strong>edit:</strong> i cannot use 3rd party libraries as described in <a href= https://stackoverflow.com/questions/16441769/javas-bigdecimal-powerbigdecimal-exponent-is-there-a-java-library-that-does >java s bigdecimal.power(bigdecimal exponent): is there a java library that does it </a> is there more elegant succint way for this case than described in <a href= https://stackoverflow.com/questions/3579779/how-to-do-a-fractional-power-on-bigdecimal-in-java >how to do a fractional power on bigdecimal in java </a>,java | |
| python loop to print asterisks based on user input i m trying to create a python program to print a certain number of asterisks based on user input. my code is below <pre><code>num_stars = 3 num_printed = 0 while num_printed <= num_stars: print( * ) </code></pre> the output is an infinite loop. i want to print the number of stars variable as asterisks.,python | |
| what version of xcode will support ios 3.0 i want my app to support the largest audience possible. i am thinking this would be ios 3.0 to ios 7.0. i originally wrote the app using xcode 5.0 but because i used storyboarding i could only support users that had ios 5.0 or higher at the time. at this point i am thinking of reworking the app so it no longer uses storyboarding and using a lower version of xcode. i am also wondering how to support ios 7.0 as while supporting ios 3.0 users was wondering if someone could point me in the right direction thanks in advance!,iphone | |
| scanner java: - how to read what type of data user entered i am very new to programming and what i started doing is writing a code that converts different units in metric system. for example the program asks the user to enter x-amount of kilometer and then it converts that value to miles etc. of course km & miles can only be positive values. however i don t seem to get around of telling the program: if entered value is an alphabetic value then ask user to reenter the value. i seem to get it working for negative values but not for alphabetic characters please help. <strong>here is my code:</strong> <pre><code> //method for converting kilometer to mile. will be invoked in main method public static void kmtomiles(double k double mi) { scanner scan = new scanner(system.in); system.out.println( convert kilometer to mile: ); k = scan.nextdouble(); mi = k / 1.609344; if(mi < 0) { do { system.out.println( entered value can not be negative. enter a positive value: ); k = scan.nextdouble(); mi = k / 1.609344; } while (mi < 0); } bigdecimal bd = new bigdecimal(mi); bd = bd.setscale(1 roundingmode.ceiling); system.out.println((int) k + kilometer(s) =: + bd + miles ); system.out.println( *****************************************\n ); scan.close(); } </code></pre>,java | |
| all events that would trigger the applicationwillresignactive & applicationdidbecomeactive i know pressing command-l can trigger <strong>applicationwillresignactive:</strong> from forum here. 1) is it only applied to ios4 2) besides in the real scenario with the device what would trigger the <strong>applicationwillresignactive:</strong> & <strong>applicationdidbecomeactive:</strong> i searched answers in this forum. some said it depends the reply of a call some said sms some said only an app which pops up a view. is there a list of events i can find,iphone | |
| syntax error unrecognized expression after putting js code in a js file i ve this code in my aspx file which uses jquery-1.9.1.js and the app runs fine: <pre><code><script type= text/javascript > $(function () { $( #<%=datepickerstart.clientid%> ).datepicker(); $( #<%=datepickerend.clientid%> ).datepicker(); }); </script> <asp:textbox id= datepickerstart runat= server >start date</asp:textbox> <asp:hiddenfield id= hiddendatestart runat= server /> </code></pre> when i put the js code in a js file like this: <pre><code>$(document).ready(function() { $( #<%=datepickerstart.clientid%> ).datepicker(); $( #<%=datepickerend.clientid%> ).datepicker(); }); </code></pre> i got this error message: syntax error unrecognized expression: <pre><code>#<%=datepickerstart.clientid%> </code></pre> any suggestions would be greatly appreciated.,javascript | |
| object() takes no parameters in python 3.4.0 why do i get this error when trying to run the following code <blockquote> cobj1 = car( ford black ) typeerror: object() takes no parameters </blockquote> <pre><code>class car(object): numwheels = 4 def display(self): print( make: self.make) print( colour: self.colour) print( wheels: car.numwheels) #main program cobj1 = car( ford black ) cobj1.display() </code></pre>,python | |
| incorrect output when finding number of repeated digits in an ineger i am trying to find the number of duplicate (repeated) digits in a number for each unique digit. eg. for 21311243 there would be 3 1 s and 2 2 s and 2 3 s so i would just need [3 2 2] where order doesn t matter. i am trying to do this as follows where <code>number_list = [ 2 1 3 1 1 2 4 3 ]</code>. the code below works for the above number and i get that <code>repeated_numbers = [2 2 3]</code> as expected. however for 213112433 <code>repeated_numbers = [2 3 3 2]</code> for some reason and i don t know why this is and how to rectify the code below as such: <pre><code>repeated_numbers = [] #the number of repeated digits for each unique digit for a in number_list: i = 0 for b in number_list: if (a == b): i = i + 1 if i > 1: #if the particular digit is repeated repeated_numbers.append(i) number_list.remove(a) #get rid of the digit that gets repeated from the list </code></pre> also i am open to better ways of doing this as my way has <code>o(n^2)</code> complexity but need that <code>number_list</code> is considered as a list of characters.,python | |
| relation between two lists in java i have two sets of different types of objects. each element of one set is related to one element of the other and the two lists are in two different classes. i have a function that iterates over one set and check if this element must be removed and when it does i must delete the associated element in the other set. what kind of collection and methodology must i use to do so,java | |
| what is the meaning of if (this [x]) in javascript i m using a javascript game engine called panda and i m getting an error in the console (uncaught class bg already created). and when i explore the source code of the engine i found the code that is throwing the error (below). my question is in the second if statement what is the meaning of (this[name]) i don t understand what exactly its saying. any help would be appreciated. thanks in advanced. <pre><code>createclass: function(name extend content) { if (typeof name === object ) return this.class.extend(name); if (this[name]) throw class + name + already created ; if (typeof extend === object ) { content = extend; extend = class ; } </code></pre>,javascript | |
| most effective way of drawing 4 lines in an iphone app basic question but i m unsure. not looking for code as an answer. i want to draw 4 short lines 1px lines on a view. what is the best way to approach this task options:- <ul> <li>load an image of the line then create 4 uiimageviews with it.</li> <li>create my own subclass of a uiview that draws a line in the draw rect method.</li> <li>draw elsewhere on another view another uiimageview that has an uiimage inside it (is this possible )</li> <li>another way </li> </ul> thanks ross,iphone | |
| cannot seem to find what is wrong <pre><code>import java.io.file; import java.io.filenotfoundexception; import java.util.arraylist; import java.util.scanner; public class salaries { public static void main(string[] args) throws filenotfoundexception { string filename = args[0]; scanner in = new scanner(new file(filename)); int sum = 0; in.nextline(); while(in.hasnextline()) { int totalsalary = 0; string line = in.nextline(); string[] linearray = in.nextline().split( \\s+ ); for(int i = 0; i <= linearray[i].length(); i++) { string arrayints = linearray[i]; if(linearray[i].contains( $ )) { arrayints = arrayints.replace( $ ); arrayints = arrayints.replace( ); totalsalary = integer.parseint(arrayints); sum = sum + totalsalary; } } } system.out.printf( $% d\n sum); sum = 0; } } </code></pre> i can not figure out why i keep getting an out of bounds error. my code is supposed to go through a text file and gather the numbers and create totals. text file below: <pre class= lang-none prettyprint-override ><code>campus president salary housing auto allowance bakersfield horace mitchell $285 000 $50 000 $12 000 channel island richard r. rush $275 000 $60 000 $12 000 chico paul j. zingg $279 500 $50 000 $12 000 dominguez hills mildred garcia $295 000 provided $12 000 east bay mohammad h. qayoumi $276 055 $60 000 $12 000 fresno john welty $299 000 provided $12 000 fullerton milton a. gordon $295 000 provided $12 000 humboldt rollin c. richmond $297 870 $50 000 $12 000 long beach f. king alexander $320 329 provided $12 000 los angeles james rosser $325 000 $60 000 $12 000 maritime william b. eisenhardt $258 680 provided $12 000 monterey bay diane f. harrison $270 315 provided $12 000 northridge jolene koester $295 000 provided $12 000 pomona j. michael ortiz $292 000 provided $12 000 sacramento alexander gonzalez $295 000 $60 000 $12 000 san bernardino albert k. karnig $290 000 $50 000 $12 000 san diego stephen l. weber $299 435 provided $12 000 san francisco robert a. corrigan $298 749 $60 000 $12 000 san jose don w. kassing $328 209 provided $12 000 san luis obispo jeffrey d. armstrong $350 000 $60 000 $12 000 san marcos karen s. haynes $270 568 $60 000 $12 000 sonoma ruben arminaña $291 179 $60 000 $12 000 stanislaus hamid shirvani $270 000 $50 000 $12 000 </code></pre>,java | |
| how to resign the .ipa file i already have an ipa file & want to resign . when ever i do so the size of generated ipa do not match the actual size . can anyone help i have tried using iresign os x application & also using terminal & the generated ipa doesn t install on iphone .,iphone | |
| python store lines from stdin directly to list objects in researching the answer to this question here on stackoverflow i ve learned a lot of new things but have so far been unable to close the deal. my python process will be receiving one line of input via stdin e.g. <pre><code>[{ name : ry age :28} { name : bo age :11} { name : ed age :99}] </code></pre> ...and i d like to be able to store this line directly to a list object that i can then iterate over e.g. <pre><code>for i in list: print i[ age ] i[ name ] </code></pre> ...but i just cannot get this to work whether i use <code>sys.stdin()</code> or the <code>fileinput</code> module. for example even when i explicitly create a list with <code>x = list(stdin.readline())</code> it ends up making each character a separate item in the list not parsing the text in the way i want it to. anyway.. back to searching. (thanks for reading.),python | |
| java- formatted input how can i accept input from stdin in the format <strong>hh:mm:ssam</strong> <strong>here in place of am pm can also be there</strong> and display output in the form <strong>hh:mm:ss</strong>,java | |
| given two square points (x y) find the other two to draw the square i m having difficulties to draw a square given two points only. for example if i have a (4 4) and b (5 0) i need to draw the square by pressing shift (the orientation of the square is given by the position of the mouse after sfhit has been click). i have the equation y = m*x + b of the line (4 4) -> (5 0) and i can know if the mouse is above or below the line in that specific moment. my diffculty is to find the other two vertices so that i can draw the lines and have a square. i know that this is more maths than programming or better is all about maths but i would apreciate if someone can help me. thanks,java | |
| iphone uitableview shows one cached view in it s uitablecellview the last one added! i have an object that return a cached image view (uiimageview) which do the loading showing the loading image and then populate the view with the loaded image. in my case the tableview shows multiple rows where the same user photo might appears more than once and i noticed that because it is cached it shown in the last cell it is been added to. i ve tried to construct the uiimageview each time the table ask for a cell it works so the problem is with the cached image view! but i don t know why! hints,iphone | |
| error ( expected on line 5 here is my program code. i am getting an error which says <blockquote> ( expected on line 5 [below public void work on d braces]. </blockquote> i don t understand what is to be corrected there. <pre><code>import java.util.*; class matrix { public void work { scanner scan= new scanner(system.in); int n i j; char a b c; system.out.println( enter size: ); n=scan.nextint(); int m[][]= new int[n][n]; system.out.println( first character ); a= scan.nextchar(); system.out.println( second character ); b= scan.nextchar(); system.out.println( third character ); c= scan.nextchar(); if(n<=10) { for(i=0; i<n; i++) { for(j=0; j<n; j++) { if((i==j)||(i+j==n-1)) { system.out.print(c); } else if(((i>j)&&((j==0)||(j==1))) || ((i<j)&&((j==n-2)||(j==n-1)))) { system.out.print(b); } else if(((i<j)&&((i==0)||(i==1))) || ((i>j)&&((i==n-2)||(i==n-1)))) { system.out.print(a); } } } } else system.out.println( size out of range ); } } </code></pre>,java | |
| getmessage is not defined why does this: <pre><code>function conditionstarifairesform_required () { this.a0 = new array( datedebutdevaliditeduplandaffaires getmessage( errors.required date de début ) new function ( varname this.datepattern= yyyy/mm/dd ; return this[varname]; )); this.a1 = new array( datefindevaliditeduplandaffaires getmessage( errors.required date&nbsp;de&nbsp;fin ) new function ( varname this.datepattern= yyyy/mm/dd ; return this[varname]; )); this.a2 = new array( tarifenvigueur getmessage( errors.required tarif en vigueur ) new function ( varname return this[varname]; )); this.a3 = new array( datedebuttarif getmessage( errors.required date de début ) new function ( varname this.datepattern= yyyy/mm/dd ; return this[varname]; )); if(document.getelementsbyname( delaidepaiementfacture )[0].disabled == false) { this.a4 = new array( delaidepaiementfacture getmessage( errors.required délai&nbsp;de&nbsp;paiement ) new function ( varname return this[varname]; )); }else { if(document.getelementsbyname( delaidepaiement.value )[0].selectedindex == 7 || document.getelementsbyname( delaidepaiement.value )[0].selectedindex == 0) { this.a4 = new array( delaidepaiement getmessage( errors.required délai&nbsp;de&nbsp;paiement ) new function ( varname return this[varname]; )); } } } </code></pre> produce this error message: <blockquote> uncaught referenceerror: getmessage is not defined </blockquote>,javascript | |
| iphone add support for backgrounder i m trying to create a app for my personal use that uses backgrounder. are there any prerequisite that the app can be used by backgrounder as it refuses to put my app in background. i have seen the wiki and google code page of backgrounder and it states if you wish to run a non-appstore 3rd-party application in the background it is suggested that you contact the author of the application and request that proper background support be added. but there is no additional info about it... and mailing list is ... where joining the group is also a mystery. what constitutes a proper background support,iphone | |
| "javascript click event listener not firing i am trying to make a calculator and i need to assign the click event to the inputs. however i am new to javascript and i am not able to figure out why it is not working. <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>onload = function assign() { | |
| var c = document.queryselectorall( .click ); | |
| for (i = 0; i < c.length; i++) { | |
| c[i].addeventlistener( click ); | |
| alert( bob ); | |
| } | |
| }</code></pre> | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><div style= max-width: 960px; margin: 0px auto; background-color: green; > | |
| <section id= cal-container > | |
| <form name= calculator > | |
| <input type= text name= answer > | |
| <br> | |
| <input class= click id= 1 type= button value= 1 > | |
| <input class= click id= 2 type= button value= 2 > | |
| <input class= click id= 3 type= button value= 3 > | |
| <input class= click id= + type= button value= + > | |
| <br> | |
| <input class= click id= 4 type= button value= 4 > | |
| <input class= click id= 5 type= button value= 5 > | |
| <input class= click id= 6 type= button value= 6 > | |
| <input class= click id= - type= button value= - > | |
| <br> | |
| <input class= click id= 7 type= button value= 7 > | |
| <input class= click id= 8 type= button value= 8 > | |
| <input class= click id= 9 type= button value= 9 > | |
| <input class= click id= * type= button value= * > | |
| <br> | |
| <input class= click id= v type= button value= c > | |
| <input class= click id= 0 type= button value= 0 > | |
| <input class= click id= = type= button value= = > | |
| <input class= click id= / type= button value= / > | |
| <br> | |
| </form> | |
| </section> | |
| </div></code></pre> | |
| </div> | |
| </div>",javascript | |
| unable to execute for loop i m new to java and just wrote a program for learning purpose. i have two arrays of strings and i want to compare the length of both string arrays.if lengths are equal then compare the values of each first string array with the values of each second array .if value got matched then print that value. not able to rectify where the problem is <pre><code> package com.equal.arrat; import java.util.arraylist; import java.util.list; public class arrayequal { public static void main(string[] args) { string s[] = { anuj kr chaurasia }; string s1[] = { anuj kr chaurasia }; if (s.length==s1.length) { system.out.println(s.length); for (int i =0 ; i>=s.length;i++) { for (int j =0 ;j>=s1.length;j++) { system.out.println( test ); if (s[i].equals(s1[j])) { system.out.println( ok + s[i]); } else{ system.out.println( not ok ); } } } } else{ system.out.println( length not equal ); } } } </code></pre>,java | |
| default.png shows but not for long lots of default.png q s but i didn t read one like this: i see default.png but then the screen goes blank but no error messages no abort. what am i missing sdk 4.3 iphone only no nib no schemes no orientation other than portrait up/down. nav controller 4 tabs. app abc works fine. clone xyz doesn’t. info.plist seems identical including the half dozen icon files; neither app has an entry that contains “mainwindow.” analyze and both generate “build succeeded.” run and both display “attaching to process blah-blah-blah.” any combo of reboot and/or restart mac/xcode/simulator/device doesn’t do a dang thing. there is one difference though: the drop-down for abc shows the full device name two 4.2’s and two 4.3’s; xyz shows only “ios device” and the two 4.3’s. abc shows all the nslogs. xyz shows none of them. and in both cases the first nslog is right after <pre><code>- (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions { </code></pre> clean all targets made no difference. i’m thinking “clone not.” <hr> xjones here s the code you requested. i ve whacked it down as much as i could. <pre><code>-(bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions { nslog(@ app delegate cgrect ); cgrect framemain = [uiscreen mainscreen].applicationframe; glbl_height = framemain.size.height; glbl_width = framemain.size.width; nslog(@ app delegate background ); uicolor *bluegreenbackground = [[uicolor alloc] initwithpatternimage:[uiimage imagenamed:@ default.png ]]; self.window.backgroundcolor = bluegreenbackground; [bluegreenbackground release]; nslog(@ app delegate 3 ); method01_vc *method01vc = [[[method01_vc alloc] init] autorelease]; // more controllers method01vc.title = nslocalizedstring(@ title 1 method 1 @ (title 1) ); // more titles uinavigationcontroller *method01nav = [[[uinavigationcontroller alloc] initwithrootviewcontroller:method01vc] autorelease]; // more controllers nslog(@ app delegate prior to tabbar init ); _tabbarcontroller = [[uitabbarcontroller alloc] init]; nsarray *sections = [nsarray arraywithobjects:method01nav method02nav method03nav method04nav nil]; [_tabbarcontroller setviewcontrollers:sections]; cgrect frame = cgrectmake(0.0 0.0 320 48); // 48 uiview *tabbarview = [[uiview alloc] initwithframe:frame]; [tabbarview setbackgroundcolor:[uicolor colorwithred:0.07 green:0.14 blue:0.04 alpha:0.8]]; nsarray *tabs = _tabbarcontroller.viewcontrollers; uiviewcontroller *tab1 = [tabs objectatindex:0]; tab1.tabbaritem.image = [uiimage imagenamed:@ tabicon01.png ]; tab1.tabbaritem.title = @ ; uiviewcontroller *tab2 = [tabs objectatindex:1]; tab2.tabbaritem.image = [uiimage imagenamed:@ tabicon02.png ]; tab2.tabbaritem.title = @ ; nslog(@ app delegate prior to tabbar insert ); [[_tabbarcontroller tabbar] insertsubview:tabbarview atindex:0]; tabbarview.autoresizessubviews = yes; [tabbarview release]; _tabbarcontroller.delegate = self; [self.window addsubview:_tabbarcontroller.view]; // self.tabbarcontroller.selectedindex = 1; ---- makes no difference // self.window.rootviewcontroller = self.tabbarcontroller; --- ditto nslog(@ app delegate prior to makekeyandvisible ); [self.window makekeyandvisible]; nslog(@ app delegate about to return yes ); return yes; // implement loadview to create a view hierarchy programmatically without using a nib. - (void)loadview { nslog(@ method01 cgrect ); cgrect framemain = [uiscreen mainscreen].applicationframe; uiview *view = [[uiview alloc] initwithframe:framemain]; self.view = view; self.view.autoresizingmask = uiviewautoresizingflexiblewidth | uiviewautoresizingflexibleheight; self.view.autoresizessubviews = yes; </code></pre> after the above all the usual labels and text fields follow. thanks again for taking the time to slog through it. i ve got my hopes set on a duh!,iphone | |
| string s split returning unexpected value <pre><code>system.out.println(arrays.tostring( 1.1.1 .split( . ))); </code></pre> this prints out an empty array. what gives to me it should print out [1 1 1] . instead it prints out [] . it doesn t make sense to me.,java | |
| example code from javascript textbook giving unexpected error preface - not relevant to problem first off i am a noob to javascript and am in the process of learning it. i have read a lot of eloquent javascript but towards the end found it to be too advanced for my level. i was recommended to start reading professional javascript for web developers by nicholas zakas. problem now i m attempting to just try and run objecttypeexample04.htm which i ve included here: <pre><code>function displayinfo(args) { var output = “”; if (typeof args.name == “string”){ output += “name: “ + args.name + “\n”; } if (typeof args.age == “number”) { output += “age: “ + args.age + “\n”; } alert(output); } displayinfo({ name: “nicholas” age: 29 }); displayinfo({ name: “greg” }); </code></pre> from what i can understand it ll just print the object defined in the call to displayinfo and it ll do this through appending the output variable inside that function. i don t get why i m getting this error <blockquote> exception: syntaxerror: illegal character </blockquote> when running it in a javascript code runner (don t know the technical name). but basically i tried using jsfiddle to no luck and i don t understand what s wrong because i copied and pasted it out of a textbook.,javascript | |
| simple java program can not be run i am trying to compile and run helloworld on linux machin with java version 1.6. i get it compiled but can not run it. i know that the program is at least correct. can anybody tell me how to get the silly program run i know even this problem had been metioned several times but nowhere found the fix of that problem. compile command i used: <code>javac exampleprogram.java</code>. run command i used: <code>java exampleprogram</code> <pre><code>//a very simple example class exampleprogram { public static void main(string[] args){ system.out.println( i m a simple program ); } } </code></pre> the error: <pre><code>java -classpath . exampleprogram exception in thread main java.lang.unsupportedclassversionerror: exampleprogram : unsupported major.minor version 51.0 at java.lang.classloader.defineclass1(native method) at java.lang.classloader.defineclasscond(classloader.java:631) at java.lang.classloader.defineclass(classloader.java:615) at java.security.secureclassloader.defineclass(secureclassloader.java:141) at java.net.urlclassloader.defineclass(urlclassloader.java:283) at java.net.urlclassloader.access$000(urlclassloader.java:58) at java.net.urlclassloader$1.run(urlclassloader.java:197) at java.security.accesscontroller.doprivileged(native method) at java.net.urlclassloader.findclass(urlclassloader.java:190) at java.lang.classloader.loadclass(classloader.java:306) at sun.misc.launcher$appclassloader.loadclass(launcher.java:301) at java.lang.classloader.loadclass(classloader.java:247) could not find the main class: exampleprogram. program will exit. </code></pre>,java | |
| retrieve data from toc i aim to convert the toc of <a href= https://docs.python.org/3.6/reference/index.html rel= nofollow noreferrer >the python language reference — python 3.6.3 documentation</a> to a structured data with the following steps: 1.copy contents to a <code>plr.md</code> file <pre><code>in [1]: with open( plr.md ) as file: ...: content = file.read() in [2]: content out[2]: \n\n- \\1. introduction\n - [1.1. alternate implementations] (https://docs.python.org/3.6/reference/introduction.html#alternate-implementations)\n - [1.2. notation](https://docs.python.org/3.6/reference/introduction.html#notation)\n- \\2. lexical analysis\n - [2.1. line structure] (https://docs.python.org/3.6/reference/lexical_analysis.html#line-structure)\n - [2.2. other tokens](https://docs.python.org/3.6/reference/lexical_analysis.html#other-tokens)\n </code></pre> 2.get chapters <pre><code>in [47]: chapters = content.split( \n- \\ ) ...: #subtract the unqualified part ...: chapters = chapters[1:] in [50]: chapters[0] out[50]: 1. introduction\n - [1.1. alternate implementations](https://docs.python.org/3.6/reference/introduction.html#alternate-implementations) \n - [1.2. notation](https://docs.python.org/3.6/reference/introduction.html#notation) </code></pre> 3.separate chapter name and section name in each chapters <pre><code>chapter_details = chapters[0].split( \n - ) sections = chapter_details[1:] chapter = chapter_details[0] in [54]: chapter out[54]: 1. introduction in [55]: sections out[55]: [ [1.1. alternate implementations](https://docs.python.org/3.6/reference/introduction.html#alternate-implementations) [1.2. notation](https://docs.python.org/3.6/reference/introduction.html#notation) ] </code></pre> 4.convert section <pre><code>def convert_section(s): start = s.index( [ ) + 1 end = s.index( ] ) return s[start:end] in [57]: print(convert_section( [1.1. alternate implementations](https://docs.python.org/3.6/reference/i ...: ntroduction.html#alternate-implementations) )) 1.1. alternate implementations sections = map(convert_section sections) sections = list(sections) </code></pre> 5.create a dict <pre><code>key = chapter {key:sections} { 1. introduction :[ 1.1. alternate implementations 1.2. notation ]} </code></pre> 6.encapsulate codes in a class and get the result <pre><code>class toc: def __init__(self filename): self.filename = filename def read(self filename): with open (filename) as file: content = file.read() return content def convert_section(self s): start = s.index( [ ) + 1 end = s.index( ] ) return s[start:end] def get_chapters(self filename): content = self.read(filename) chapters = content.split( \n- \\ ) #subtract the unqualified part chapters = chapters[1:] return chapters def create_chapter_dict(self chapter): chapter_details = chapter.split( \n - ) sections = chapter_details[1:] key = chapter_details[0] value = map(self.convert_section sections) return {key: list(value)} def get_chapters_dict(self): chapters = self.get_chapters(self.filename) chapters_dict = {} for chapter in chapters: chapter_dict = self.create_chapter_dict(chapter) chapters_dict.update(chapter_dict) return chapters_dict </code></pre> run and get the result <pre><code>in [89]: toc( plr.md ).get_chapters_dict() out[89]: { 1. introduction : [ 1.1. alternate implementations 1.2. notation ] 2. lexical analysis : [ 2.1. line structure 2.2. other tokens 2.3. identifiers and keywords 2.4. literals 2.5. operators 2.6. delimiters ] 3. data model : [ 3.1. objects values and types 3.2. the standard type hierarchy 3.3. special method names 3.4. coroutines ] </code></pre> this solution is a bit too much for a daily common operation is there a standard or easy method for such a task,python | |
| how can i compare if old date time is less than 20 minutes off current dates i have got two dates. <code>olddate</code> and current date as shown below <pre><code>package com; import java.text.dateformat; import java.text.parseexception; import java.text.simpledateformat; import java.util.calendar; import java.util.date; public class test { public static void main(string args[]) throws parseexception { // for old date string olddate = 2014-10-01 17:26:12 ; dateformat formatter = null; date converteddate = null; formatter = new simpledateformat( yyyy-mm-dd hh:mm:ss ); converteddate = (date) formatter.parse(olddate); //system.out.println(converteddate.getminutes()); // for new date calendar currentdate1 = calendar.getinstance(); simpledateformat formatter1 = new simpledateformat( yyyy-mm-ddhh:mm:ss ); string currentdate = formatter1.format(currentdate1.gettime()); system.out.println( newdate + currentdate); } } </code></pre>,java | |
| uinavigationcontroller back button custom text the back button by default shows the title of the last view in the stack is there a way to have custom text in the back button instead,iphone | |
| "in this code i want to add values by clicking the value buttons i want to add values by clicking the value buttons by each and every by the following function <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>function sum() { | |
| var txtfirstnumbervalue = document.getelementbyid( txt1 ).value; | |
| var txtsecondnumbervalue = document.getelementbyid( txt2 ).value; | |
| var txtthirdnumbervalue = document.getelementbyid( txt3 ).value; | |
| var txtfourthnumbervalue = document.getelementbyid( txt4 ).value; | |
| var result = parseint(txtfirstnumbervalue) + parseint(txtsecondnumbervalue); | |
| var result = parseint(txtfirstnumbervalue) + parseint(txtthirdnumbervalue); | |
| var result = parseint(txtfirstnumbervalue) + parseint(txtfourthnumbervalue); | |
| if (!isnan(result)) { | |
| document.getelementbyid( txt1 ).value = result; | |
| } | |
| } | |
| // here i gave the other two events to add to the text field by the id names</code></pre> | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><!-- here i gave the three value buttons and on click function --> | |
| <input type= text id= txt1 value= 10 /> | |
| <input type= button id= txt2 value= 10 onclick= sum(); /> | |
| <input type= button id= txt3 value= 20 onclick= sum(); /> | |
| <input type= button id= txt4 value= 30 onclick= sum(); /></code></pre> | |
| </div> | |
| </div>",javascript | |
| finding text child of an element using javascript i would like to find the text snippet this is for testing selector from the following dom structure using plain javascript. <pre><code><html> <body> <div class= breadcrumb > <a title= home href= http://www.google.com/ > home</a> <span class= arrow >»</span> <a title= abc href= http://www.google.com/ >test1</a> <span class= arrow >»</span><a title= xyz href= http://www.google.com/ >test2</a> <span class= arrow >»</span> this is for testing selector </div> </body> </html> </code></pre>,javascript | |
| calculating the number of seconds since 1601 howto calculate the seconds since january 1 1601,python | |
| no audio after phone call ends how to resume audio after the phone call ends. here is my code but it is not working don t know why <pre><code>@interface mainviewcontroller : uiviewcontroller <infodelegate avaudioplayerdelegate> </code></pre> in m file <pre><code>-(void)audioplayerbegininterruption:(avaudioplayer *)audioplayer; { } -(void)audioplayerendinterruption:(avaudioplayer *)audioplayer; { [self.audioplayer play]; } </code></pre> any ideas what is it i m doing wrong or missing from code. please help.,iphone | |
| send sms by pre schedule sms in sqlite table i am working on sms pre schedule app in iphone where i am using sqlite table to store date time phone no message. i want to send sms by the time that it saved in sqlite table using pre schedule time. please help me out by suggest me code to send sms using nstimer. and also upadte timer to the next nearest time in sqlite table automatically.,iphone | |
| how to determine the current iphone os version at runtime and compare version strings how can you determine and compare (> < etc.) the current os version of the iphone that the app is running on there is a certain bug in 3.0 but not in 3.1+ so i d like to be able to skip out a bit of code if the current os version is not >= 3.1. this needs to be at runtime not compile time!,iphone | |
| how to parse a string in string into multiple variables for each word how do you parse a string of a <strong>sentence</strong> into multiple <strong>variables</strong>. for example the string could say the red car but how would you <strong>parse</strong> each word of the string into separate variables,java | |
| how does listiterator work <pre><code>linkedlist<string> names=new linkedlist<>(); listiterator<string> iterator=names.listiterator(); </code></pre> then we can perform operations using <code>iterator.hasnext()</code> <code>iterator.next()</code> etc. if <code>listiterator</code> is an interface how could we access methods on its reference variable iterator as interface should have only abstract methods does <code>names.listiterator()</code> returns object reference of some class if so which class object reference it returns can someone clarify this,java | |
| is it possible to kick off an app from another iphone app i d like to start up the app store from within my iphone app. is this possible - and how thanks.,iphone | |
| for in in lists i m trying to do something like that in a nutshell... <pre><code>house = [ yes no maybe ] x = range(3) for x in house print[x] </code></pre> <hr> i want to loop over a list but i got type error: list indices must be integers not tags. how can i achieve this,python | |
| indexerror while extracting data from files i have a hundred files each with three columns. in a python script i extract the three columns for each file : <pre><code>for i in range(1 100) # extract data os.chdir( directory/to/files ) filename = file +str(i).dat f = open(filename) c1 = [l.split()[0] for l in f] f.close() f = open(filename) c2 = [l.split()[1] for l in f] f.close() f = open(filename) c3 = [l.split()[2] for l in f] f.close() doanalysis() </code></pre> surprisingly i have an <code>indexerror</code> at iteration 15 pointing at line 12 of the above code saying : <code>list index out of range</code>. i thought python is thinking that my file15.dat has less then 3 columns so i added this just before line 12 : <pre><code>if i==15: c3if = [] for l in f: print(len(l.split()) c3if.append(l.split()[2]) </code></pre> the <code>c3if</code> list seems to contain the third column of file15.dat entirely and l.split is always of length 3. i don t understand why the comprehension list c3 fails at a specific iteration while the two other comprehension lists do not.,python | |
| filenotfounderror: [winerror 2] the system cannot find the file specified -mongo import i want to import a large amounts of data using mongoimport (anaconda -windows platform).i built a mongoimport command and i used subprocess.call to execute. here is my code <pre><code> # build mongoimport command collection = cal_data[:cal_data.find( . )] #print collection working_directory = /users/ json_file = cal_data + .json #print json_file mongoimport_cmd = mongoimport --db + db_name + \ --collection + collection + \ --file + working_directory + json_file #print mongoimport_cmd # before importing drop collection if it exists if collection in db.collection_names(): print ( dropping collection ) db[collection].drop() # execute the command print ( executing: + mongoimport_cmd) subprocess.call(mongoimport_cmd.split()) </code></pre> <hr> here is the error i get <h2>executing: mongoimport --db osm --collection chattanooga --file /users/chattanooga.osm.json</h2> filenotfounderror traceback (most recent call last) in () 16 # execute the command 17 print ( executing: + mongoimport_cmd) ---> 18 subprocess.call(mongoimport_cmd.split()) c:\users\mmedouani\appdata\local\continuum\anaconda3\lib\subprocess.py in call(timeout *popenargs **kwargs) 558 retcode = call([ ls -l ]) 559 --> 560 with popen(*popenargs **kwargs) as p: 561 try: 562 return p.wait(timeout=timeout) c:\users\mmedouani\appdata\local\continuum\anaconda3\lib\subprocess.py in <strong>init</strong>(self args bufsize executable stdin stdout stderr preexec_fn close_fds shell cwd env universal_newlines startupinfo creationflags restore_signals start_new_session pass_fds) 948 c2pread c2pwrite 949 errread errwrite --> 950 restore_signals start_new_session) 951 except: 952 # cleanup if the child failed starting. c:\users\mmedouani\appdata\local\continuum\anaconda3\lib\subprocess.py in _execute_child(self args executable preexec_fn close_fds pass_fds cwd env startupinfo creationflags shell p2cread p2cwrite c2pread c2pwrite errread errwrite unused_restore_signals unused_start_new_session) 1218 env 1219 cwd -> 1220 startupinfo) 1221 finally: 1222 # child is launched. close the parent s copy of those pipe filenotfounderror: [winerror 2] the system cannot find the file specified,python | |
| what is the meaning of broken pipe exception what is the meaning of broken pipe exception and when it will come,java | |
| guessing game python binary search i can t figure out what s wrong with my code here. i am trying to have the user think of a number between 1 and 100 and then this program will be able to guess it. the program adds the high and low numbers of the range and divides by two and uses that as the guess. the user enters a 1 if the number the program guess is higher than their number -1 if it is lower and 0 if the guess is correct. after at most 7 guesses the number guessed should be right. when i run my code it constantly prints out the guess as 50 and never changes. it seems to never be running through the if statements. it should be running through the program and finding a new guess. <pre><code>def main(): import random print( guessing game ) print( ) print( think of a number 1 and 100 inclusive.\nand i will guess what it is in 7 tries or less. ) print( ) ready = input( are you ready (y/n): ) print( ) if ready != y and ready != n : ready = input( are you ready (y/n): ) if ready == n : print( bye ) if ready == y : lo = 0 hi = 100 guess_high = 1 guess_same = 0 guess_low = -1 a = random.randint(1 100) num_list = [] for i in range(1 100): num_list.append(i) while (lo <= hi): guess_count = 0 for guess_count in range(1 8): guess_count += 1 guess = (lo + hi) // 2 print( guess guess_count : the number you thought was guess) user_response = input( enter 1 if my guess was high -1 if low and 0 if correct: ) if (user_response == 1): hi = guess - 1 guess_count += 1 guess = (lo + hi) // 2 elif (user_response == -1): lo = guess + 1 guess_count += 1 guess = (lo + hi) // 2 elif (user_response == 0): print( thank you for playing the guessing game. ) main() </code></pre>,python | |
| java.io.ioexception: cannot run program java com.alter.change.on.demand.jobs.helloworld2 : error=2 no such file or directory <pre><code>package com.alter.change.on.demand.jobs; import java.io.file; import java.io.ioexception; public class helloworld { public static void main(string args[]){ for(int i = 0; i<5 ; i++){ system.out.println( helloo ); } process process = null; processbuilder pb = new processbuilder(new string[]{ java + + com.alter.change.on.demand.jobs.helloworld2 }); try { process = pb.start(); } catch (ioexception e) { e.printstacktrace(); } try { process.waitfor(); } catch (interruptedexception e) { e.printstacktrace(); } int exitval = process.exitvalue(); system.out.println(exitval); } } </code></pre> and <pre><code>package com.alter.change.on.demand.jobs; public class helloworld2 { public static void main(string[] args){ system.out.println( main 2..testing ); } } </code></pre> <blockquote> java.io.ioexception: cannot run program java com.alter.change.on.demand.jobs.helloworld2 : error=2 no such file or directory at java.lang.processbuilder.start(processbuilder.java:1048) at com.alter.change.on.demand.jobs.helloworld.main(helloworld.java:22) caused by: java.io.ioexception: error=2 no such file or directory at java.lang.unixprocess.forkandexec(native method) at java.lang.unixprocess.(unixprocess.java:248) at java.lang.processimpl.start(processimpl.java:134) at java.lang.processbuilder.start(processbuilder.java:1029) ... 1 more exception in thread main java.lang.nullpointerexception at com.alter.change.on.demand.jobs.helloworld.main(helloworld.java:28) </blockquote>,java | |
| cloc how to sum the results iam developing a program to analyze the source code of programs. now i m having a trouble counting results here comes my source code: <pre><code>public void walk(string path) throws filenotfoundexception { file root = new file(path); file[] list = root.listfiles(); int countfiles = 0; if (list == null) { return; } for (file f : list) { if (f.isdirectory()) { walk(f.getabsolutepath()); } if (f.getname().endswith( .java )) { system.out.println( file: + f.getname()); countfiles++; scanner sc = new scanner(f); int count = 0; while (sc.hasnextline()) { count++; sc.nextline(); } scanner sc2 = new scanner(f); int lower = 0; int upper = 0; int digit = 0; int whitespace = 0; while (sc2.hasnextline()) { string str = sc2.nextline(); for (int i = 0; i < str.length(); i++) { if (character.islowercase(str.charat(i))) { lower++; } else if (character.isuppercase(str.charat(i))) { upper++; } else if (character.isdigit(str.charat(i))) { digit++; } else if (character.iswhitespace(str.charat(i))) { whitespace++; } } } system.out.println( your code contains: + count + lines! out of them: ); system.out.println( lower case: + lower); system.out.println( upper case: + upper); system.out.println( digits: + digit); system.out.println( white spaces: + whitespace); } system.out.println( you have in total: + countfiles); } } </code></pre> first question: when it comes to countfiles ( which is supposed to tell how many .java files or classes you have in your code) its counting and printing results like the following: you have in total= 1 file you have in total= 2 file so how can i make it to print me the final result directly which is 2 in this case second question: how can i print the sum of the lines in the code in totally instead of showing them for each class by it self thanks,java | |
| changing language of tab bar elements we re developing an iphone application to be distributed in spain. it contains a tab bar but we re not quite sure how to change more and edit into spanish. i m sure there s a simple solution... anybody know a way to do it ==== edit 1 ==== this is how we add the tabbar. as you see we create a tabbaritem for each button but the more button comes automatically when there are more than 5 (as should be expected). <pre><code>for (int i = 0; i < [buttonnames count]; i++) { switch (i) { case 1: viewcontroller = [[fotos alloc] init]; break; case 2: viewcontroller =[[videos alloc] init]; break; case 3: viewcontroller =[[deportes alloc] init]; break; default: viewcontroller = [[myappviewcontroller alloc] initwithcategory:i strcategory:[tempnames objectatindex:i]]; break; } uinavigationcontroller *nav = [[uinavigationcontroller alloc] initwithrootviewcontroller:viewcontroller]; uitabbaritem *tabbaritem = [[uitabbaritem alloc] initwithtitle:[buttonnames objectatindex:i] image:[uiimage imagenamed:[imgnames objectatindex:i]] tag:i]; nav.tabbaritem = tabbaritem; [controllers addobject:nav]; [viewcontroller release]; [nav release]; [tabbaritem release]; } // create the toolbar and add the view controllers tabbarcontroller = [[uitabbarcontroller alloc] init]; [tabbarcontroller setviewcontrollers:controllers animated:yes]; tabbarcontroller.customizableviewcontrollers = controllers; tabbarcontroller.delegate = self; // set up the window [window addsubview:tabbarcontroller.view]; [window makekeyandvisible]; </code></pre> ==== solved ==== all i needed was a es.lproj directory in my project. i create a new file in xcode (file > new file... > mac os x / other > strings file) i name it localizable.strings and save it in es.lproj. any strings that need to be localized need to be defined in this file but all other strings generated by the os (the more edit and done buttons in the tabbar video controls etc.) will be automatically translated.,iphone | |
| how to open yahoo messenger link from iphone app how can i open the following yahoo messenger link from an iphone app ymsgr:sendim testlink thanks,iphone | |
| writing to module-wide variable lets say i have these 3 (tiny) python files - <strong>a.py</strong> <pre><code>myvar = a </code></pre> <strong>b.py</strong> <pre><code>import a import c myvar = b c.pr() </code></pre> <strong>c.py</strong> <pre><code>from a import myvar def pr(): print myvar </code></pre> now if i execute <code>b.py</code> i get output <pre><code>a </code></pre> but i really want output to be as <pre><code>b </code></pre> so please tell me how can i restructure/modify the programs so that the <em>module-wide</em> <code>myvar</code> can be assigned a different value.,python | |
| python trouble shooting machine needs fixing the following code is designed to be an automated troubleshooter in python. <pre><code># welcoming the user to the program print( hello this is a automated mobile phone troubleshooter ) print( the code will ask you a few questions try to answer them to the best of your ability ) # explaining what the code will do # a list storing all the questions the code will ask the user questions = [ is there a problem with your hardware or is do you need technical assistance. please type technical assistance or hardware have you dropped your phone recently please type yes or no is your phone able to charge please type yes or no is your phone a iphone please type yes or no does your phone keep freezing please type yes or no can your phone connect to wifi please type either yes or no have you gotten your phone wet is the phone s screen cracked or broken is there a problem with the camera is the problem with phone fixed ] # a list containing all the solutions that will be given to the user solutions = [ this troubleshooter is only for hardware problems please call 01474 709853 for technical assistance please try turning it off and on again try changing the cable you charge the phone with please hold the lock button and home button for 5 seconds this causes a force restart try deleting some data to make your phone run faster e.g. delete applications try restarting your router put your phone in a bowl of rice overnight take the phone to the manufacturer s store uninstall any third party apps or applications that you have downloaded since the camera has not been working please take the phone to your local phone manufacturers store and ask them for help ] answers = [ technical assistance yes no yes yes no yes yes yes no ] validation = [ hardware no yes no no yes no no no yes ] answer = a # creating a loop and making the variable loop go from 0 to 9 for loop in range(0 10): while answer != answers[loop] and answer != validation[loop]: answer = input(questions[loop]) # turning the user s answer and turning it to lowercase making sure the if statement gets the right answer answer = answer.lower() if answer == answers[loop]: # prints the solution the problem print(solutions[loop]) else goto print( thank you for using the automated troubleshooting program goodbye ) </code></pre> i can t get this code to run properly as it can take a max input of two questions before it ends is there any way someone can help,python | |
| how to modify xslt stylesheet using java i want to modify some element values like font size color in xslt through java. i tried with following java code <pre><code>file xslfile = new file( d:/header.xsl ); system.out.println(xslfile.getpath()); javax.xml.transform.source xsltsource = new javax.xml.transform.stream.streamsource(xslfile); javax.xml.transform.transformerfactory transformerfactory = javax.xml.transform.transformerfactory.newinstance(); javax.xml.transform.transformer xslttransformer = transformerfactory.newtransformer(xsltsource); xslttransformer.setparameter( clr red ); </code></pre> the java code building successfully but the value is not reflecting into xsl stylesheet.,java | |
| new to python programming could somebody please explain the fault with this program i am very new to python programming i am writing a simple fighting game at the moment (text based) that is extremely simple as i m just learning the basics at the moment. i have placed the code for my game below (it is not finished) my problem is that every time i run the program when you enter which character you d like to play as this error occurs. <pre><code>traceback (most recent call last): file c:\python26\combat.py line 60 in <module> first_player.attack(second_player) typeerror: int object is not callable </code></pre> here is the code for my game (don t worry it s not very big!). <pre><code>import time import random class player(object): def __init__(self name): self.account = name self.health = random.randint(50 100) self.attack = random.randint(30 40) self.alive = true def __str__(self): if self.alive: return %s (%i health %i attack) % (self.account self.health self.attack) else: return self.account is dead! def attack(self enemy): print self.account attacks enemy.account with %s attack! % self.attack enemy.health -= self.attack if enemy.health <= 0: enemy.die() def die(self): print self.account dies! alive_players = 2 name1 = raw_input( enter a name: ) name2 = raw_input( enter another name: ) player_list = { a :player(name1) b :player(name2)} while alive_players == 2: print for player_name in sorted(player_list.keys()): print player_name player_list[player_name] print player1 = raw_input( who would you like to play as (a/b): ).lower() try: first_player=player_list[player1] except keyerror wrong_name: print wrong_name does not exist! continue if first_player==player(name1): second_player=player(name2) else: second_player=player(name1) time.sleep(1) print print * * 30 first_player.attack(second_player) second_player.attack(first_player) </code></pre> i know there are workarounds like appending the characters to the list after the player picks the names although i would like to have a further understanding of classes and want to know why this does not work! if possible could somebody please explain the fault and how i can fix it i have been looking at this for three days i could do it differently and make it work but i would like to understand why this doesn t work first! thanks in advance! -charlie,python | |
| building pyspotify in 32bit python osx mavericks i m trying to build <code>pyspotify</code> but after installation and <code>>>import spotify</code> i get: <pre><code>import _cffi_backend as backend importerror: dlopen(/usr/local/lib/python2.7/site-packages/_cffi_backend.so 2): no suitable image found. did find: /usr/local/lib/python2.7/site-packages/_cffi_backend.so: mach-o but wrong architecture </code></pre> my <code>uname -p</code> gets <code>i386</code> and i guess <code>pyspotify</code> it is not prebuilt for this architecture. documentations says: in that case you’ll need a c compiler python development headers and libffi development headers to build pyspotify how do i do that,python | |
| calling [super scrollviewdidscroll]; on subclass of uiwebview crashes i m not sure how this works. i was following this post: <a href= https://stackoverflow.com/questions/8857655/check-if-uiwebview-scrolls-to-the-bottom >check if uiwebview scrolls to the bottom</a> i want to know when the scrollviewscrolls to do some custom things. i subclasses uiwebview. all i did was this so far: <pre><code>- (void)scrollviewdidscroll:(uiscrollview *)scrollview { [super scrollviewdidscroll:scrollview]; nslog(@ %s __function__); } </code></pre> it crashes on the <code>[super scrollviewdidscroll:scrollview]</code> method. when i delete that line it works fine. i don t want to take away the superclass implementation of this method. i just wanted to add some custom functionality to it (place a toolbar above the webview like the facebook app). is there a reason why this is crashing thanks.,iphone | |
| wizard style navigation dismissing a view and showing another one i m making a set of screens similar to a wizard and i d like to know how to make a view dismiss itself and its parent view and immediately show a donescreen without worrying about resource leaks. my views look like the following: <pre><code>base -> level1 -> donescreen -> level2 -> donescreen </code></pre> the level1 controller is a navigation controller created with a view.xib and shown with <pre><code>[self presentmodalviewcontroller ...] </code></pre> by the base controller. the level1 controller is also responsible for creating the donescreen which may be shown instead of the level2 screen based on a certain criteria. when the user taps a button on the screen the level1 controller instantiates the the level2 controller and it displays it via <pre><code>[self.navigationcontroller pushviewcontroller ..] </code></pre> and level2 controller s view has a next button. when the use hits the next button in the level2 screen i need to dismiss the current level2 s view as well as the level1 s view and display the donescreen which would have been created and passed in to the level2 controller from level1. (partly to reduce code duplication and partly to separate responsibilities among the controllers) in the level2 controller if i show the donescreen first and dismiss itself with <pre><code>[self.navigationcontroller popviewcontrolleranimated:yes]; </code></pre> then the level1 controller s modal view is still present above the base but under the done screen. what s a good way to clear out all of these views except the base and then show the donescreen any good suggestions on how to get this done in a simple but elegant manner,iphone | |
| python simple network scanner for open port i am trying to create a simple port scanner in python without the use of nmap. the below code is what have so far: <pre><code> import socket sys optparse netaddr #input parser = optparse.optionparser( usage: untitled1.py --ip <network you want to scan including mask in cidr format> -p <target port> ) parser.add_option( --ip dest= ip type= string help= specify network to scan including /mask e.g 192.168.0.1/24 ) parser.add_option( -p dest= port type= int help= specify target port ) (options args) = parser.parse_args() port = str(options.port) ip = str(options.ip) if (ip == none) | (port == none): print parser.usage print you must specify a target network including subnet mask and port. exit(0) #create a socket try: s = socket.socket(socket.af_inet socket.sock_stream) except socket.error err_msg: print socket creation failed. error code: + str(err_msg[0]) + error mesage: + err_msg[1] sys.exit() #port scan targetlist = netaddr.ipnetwork(ip) targetlist = list(targetlist) for x in range (int(len(targetlist))): target_ip = targetlist[x] try: s = socket.socket(socket.af_inet socket.sock_stream) s.settimeout(2) result = s.connect(str(target_ip) int(port)) if not result : print str(target_ip) + port + str(port) + open! s.close() except: print str(target_ip)+ port + str(port) + closed! s.close() print scanning finished </code></pre> it does not seem to work as i am getting a port closed for every single ip or network i try to scan even though i am sure the particular port is open.. most probably my mistake is in the way port scanning is defined but i cannot seem to put my finger on it. i am at a beginner level so any suggestions are welcome! thanks in advance!,python | |
| printwriter.write( string ) never throws an ioexception so what s the right way to know if an error has occured when writing through a printwriter,java | |
| iphone view strategy i am developing an app but have yet to get the optimal navigation flow working. to give you an idea of the structure of my app i have a main view that allows the user to start a new game or view high scores. at the end of a game i would like to give the user the choice of viewing high scores or going back to the main menu - i have a game over view for this. the hierarchy looks something like this: <pre><code>main view | +--game view | | | +--game over view | | | +--high scores view | +--high scores view </code></pre> i am using the presentmodalviewcontroller method to switch from the game view to the game over view. this is fine but when i want to go back to the main view i have two layers of views to navigate through (i want to close the game over view and the game view to return straight to the main view). to close views i am using dismissmodalviewcontrolleranimated but this is not ideal for traversing more than one view. is there a way of replacing the current model view rather than opening a new one on top i hope this makes sense. please let me know if you need anymore details. thanks in advance for any help. alan,iphone | |
| java - empty int array i need to pass an empty int array. <code>new int[]{}</code> -> this works. but is there anyway with the below approach <code>collections.emptylist().toarray()</code> -> i am unable to cast this to int[] array. the method signature <pre><code>public void checkversions(final int[] versions) </code></pre> this is the method to be called. there are case where i need to pass some empty int[]. thanks,java | |
| "uncaught syntax error : unexpected token im making a pong clone with js and i am using windows.onload fucnction and it says that there is a period that isn t supposed to be there idk where they could be talking about and it says its on the windows.onload function line <div class= snippet data-lang= js data-hide= false data-console= true data-babel= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-html lang-html prettyprint-override ><code><canvas id= pg width = 800 height = 600 > | |
| <script> | |
| var c; | |
| var cc; | |
| var ballx = 50; | |
| var bally = 50; | |
| var | |
| window.onload = function(){ | |
| c = document.getelementbyid( pg ); | |
| cc = c.getcontext( 2d ); | |
| var fps = 180; | |
| setinterval(draw 1000/fps) | |
| } | |
| function draw(){ | |
| ballx += 1.5; | |
| cc.fillstyle = black ; | |
| cc.fillrect(0 0 c.width c.height); | |
| cc.fillstyle = white ; | |
| cc.fillrect(ballx bally 10 10); | |
| cc.fillrect(10 210 100 25); | |
| } | |
| </script> | |
| </canvas></code></pre> | |
| </div> | |
| </div>",javascript | |
| python input validation while loop i need my program to validate the user input. so far i have defined a range of validletters and validnumbers : <pre><code>validletters = ( abcdefghijklmnopqrstuvwxyz ) validnumbers = [ 0 1 2 3 4 5 6 7 8 9 ] </code></pre> however it should then validate like this: <pre><code>name = input( what is your name \n ).lower() while name == or name in validnumbers: name = input( what is your name \n ).lower() strinput0 = name char_only0 = for char in strinput0: if char in validletters: char_only0 += char name = char_only0 </code></pre> <strong>the problem lies with the in part of the statement it only works if the input is a single number (eg. 6 ) but it accepts two or more numbers (eg. 65 ) because 65 (unlike 6 ) is not in validnumbers.</strong> i want it to scan the entire input and ask again if it only consists of numbers as you can see it takes these out (plus any special characters) at the end. there are .isalpha() solutions however they don t allow whitespaces which are required if the user inputs their full name! i have been chipping away at this problem for hours know someone out there is probably able to solve this for me. thanks in advance.,python | |
| how to programmatically know who (other java files/classes) is using my java class i want to get a list of all java class which are dependent on my class. is there a library which exposes intended api api is expected to return list of java classes using my java class.,java | |
| get value from <select> and write output i want to use the value from standings to determine what is printed out in leaderboard i can t seem to figure out where i am going wrong. i think this is the closest i have come to getting it to work. how can i pass the local variable team from inside the function to leaderboard <pre><code><!doctype html public -//w3c//dtd xhtml 1.0 strict//en http-//www.w3.org/tr/xhtml1/dtd/xhtml1-strict.dtd > <html> <head> <title>jose cuervo pbv</title> <link href= rosters.css rel= stylesheet type= text/css /> <meta http-equiv= content-type content= text/html; charset=utf-8 /> <script type= text/javascript > var teams = new array(5); teams[0] = jenny kropp whitney pavlik ; teams[1] = jennifer fopma brooke sweat ; teams[2] = kristen batt raquel ferreira ; teams[3] = emily day heather hughes ; teams[4] = christal engle tealle hunkus ; function listteam(sel) { var i = document.getelementbyid( standings ).value; var team = teams[i]; } </script> </head> <body> <img src = ./images/cuervo_logo.jpg alt = cuervo pbv logo /> <select id= standings name= standings onchange= listteam(this) > <option value= 0 >first place</option> <option value= 1 >second place</option> <option value= 2 >third place</option> <option value= 3 >fourth place</option> <option value= 4 >fifth place</option> </select> <select id= leaderboard name= leaderboard multiple= multiple size= 1 style= width: 300px; > <option> <script type= text/javascript > document.write(team); </script> </option> </select> </body> </html> </code></pre>,javascript | |
| range of primitive numerics - double i am learning about the range of primitive types and i have question about type <code>double</code>. if we know that <code>double</code> has 8 bytes (64 bits) - why is it impossible to determine minimum and maximum range of <code>double</code> <code>long</code> has 8 bytes as well but we can determine minimum and maximum.,java | |
| java: stackoverflowerror i am working on inner class concepts and write the below code_ <pre><code>public class innerclassconcepts { private int x = 11; public static void main(string... args) { // method local x variable int x = new innerclassconcepts().new innera().new innerb().x; innerclassconcepts in = new innerclassconcepts(); innera innera = in.new innera(); innera.innerb xx = in.new innera().new innerb(); system.out.println( innerclassconcepts`s x = + in.x); system.out.println( innerb`s x = + xx.x); system.out.println( main`s x(local variable) = + x); // system.out.println( innera`s x = + innera.x); system.out.println( innera`s y = + innera.y); } /** * local inner class. */ class innera { int y = 10; /* * java.lang.stackoverflowerror coming over here... i don`t * understand why */ // int x=new innerclassconcepts().new innera().new innerb().x;//line-29 /** * inner class inside an another inner class. */ class innerb { private int x = 22; int z = innera.this.y; } } } </code></pre> <code>output_</code> <pre><code>innerclassconcepts s x = 11 innerb s x = 22 main s x(local variable) = 22 innera s y = 10 </code></pre> i am wondering why <code>stackoverflowerror</code> is coming on <code>line-29</code> when i uncomment <em>line-29</em>. where as the same is working in <code>main</code> method. <blockquote> can somebody please help me where i am wrong or what concept is behind this </blockquote>,java | |
| class scope variabile visibility if i have: <pre><code>class a { void foo() { int a = count; } void bar() { int a = c; // here error int c = 10; } private int count = 10; } </code></pre> here in <code>foo</code> <code>count</code> is used without problem also if it s declared after the use.<br> the same is not true in method <code>bar</code> where the variable <code>c</code> must be declared before its use. which are the class scope rules how they differs from method scope rules p.s. my doubt is because the common scope resolutions rules: when the compiler find <code>count</code> it should try to find it back to its use but back there is <code>class a...</code> so maybe <code>private int count</code> is hoisting at beginning of <code>class a</code>,java | |
| how do i break out of a series of string replace( ) i have a collection of short strings in the form [a][z] where a and z are (component) substrings. the strings that can go in [z] are limited to about 100 and only one of them can appear in the whole input string. now i need to replace the [z] string into another string. given the data format as soon as i find a match i know i can stop looking. i want to return the replaced string. my approach is suboptimal because i loop through all possibilities before returning the modified string. i d like to know if there s a way to break the search possibly using the fact that the input string is changed when there s a match how can i tell that the replacement happened i need to run this function about 1000 times per page load so i think that any improvement will be noticed. thanks in advance! <a href= http://jsfiddle.net/mswaz/3/ rel= nofollow >http://jsfiddle.net/mswaz/3/</a> <pre><code>function replaceend(input) { // bb cc and d are what i call [z] input = input.replace( bb bob ); input = input.replace( ccc carl ); input = input.replace( d dave ); return input; } document.write(replaceend( aabb ) + <br> ); document.write(replaceend( eaccc ) + <br> ); document.write(replaceend( uoid ) + <br> ); </code></pre> outputs: <pre><code>aabob eacarl uoidave </code></pre>,javascript | |
| iphone standby button is there an event when the user presses the standby button i can disable auto standby (autolock) - which i do because my app is some kind of a routing application. but how about the standby button the problem - if the iphone goes standby the gps is turned off. so my app thinks it has a gps problem. this is in fact wrong - it s only standby which means a different handling should be done as if i do it when gps problems occure in running mode (the users sees the app). i couldn t find an event for this situation (neither going standby - nor awaiking from it),iphone | |
| app quits in iphone 4 i am using this but if i start my app again on iphone 4 then it quits problem is it dont know indexpath.row now how to solve this isuee / <pre><code>- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { int j=indexpath.row; if(j==0) { uiimage *bgimage = [uiimage imagenamed:@ logo_jurong.png ]; uiimageview *bgimageview = [[uiimageview alloc] initwithimage:bgimage]; [bgimageview setframe:cgrectmake(7 13 30 30)]; //finally give this imageview to the cell [cell.contentview addsubview:bgimageview]; [bgimage release]; } } </code></pre>,iphone | |
| how to make and iframe like themeforest.com preview how do i make an iframe like themeforest.com using javascript and iframe dom element. here is the site reference. look at the top black line. and the whole website is loaded under it. <pre><code>http://themeforest.net/item/focus-simple-one-page-template-2/full_screen_preview/236868 </code></pre>,javascript | |
| python how to append new data by literately checking the existing data i am working on machine learning project and would like to append data to the current table by literately checking the current data: to be specific <pre><code>x y = form_results(results) // x & y are numpy arrays </code></pre> the current data set looks like the following: <pre><code>x[0] x[1] y 1 4 1 2 5 3 3 6 4 </code></pre> how could i make it into the set as below: <pre><code>x[0] x[1] y 1 4 1 1 5 0 1 6 0 2 4 0 2 5 3 2 6 0 3 4 0 3 5 0 3 6 4 </code></pre> explanation: list out all the possibility match of x[0] & x[1] and if the match does not exist in the original table append one row with the new match of x[0] & x[1] and make the value of y to be 0. current rough though: // but this does not work <pre><code>new_data = [] for x in enumerate(x) y: for i j in x: if x[i] x[j]not in x: new_data.append(x[0] x[1] y) x = numpy.vstack(x new_data) </code></pre> i am sorry to ask this kind of stupid questions but i could not find a way out. thanks in advance for your kindness.,python | |
| not all arguments converted during string formatting taking modulus where isnumeric() is true <pre><code>while true: ans = input( enter a number : ) if ans.isalpha(): if ans == q : break elif ans.isnumeric(): if ans == 1 or ans == 0: print( not even nor odd number ) elif ans % 2 == 0: print( even number ) else: print( odd number ) </code></pre> and goes error like this: <pre><code>traceback (most recent call last): file c:/users/me.qa/desktop/app0001.py line 9 in <module> elif ans % 2 == 0: typeerror: not all arguments converted during string formatting </code></pre>,python | |
| how does the following works <pre><code>public static void main(string[] args) { int h = 30; h ^= (h >>> 20) ^ (h >>> 12); system.out.println(h); } </code></pre> if int h = 30 whose binary is 0001 1110. after operation what value will stored in h,java | |
| what are the custom url schemes for tweetdeck and seesmic does tweetdeck or seesmic have a custom url scheme that can be used within an iphone application if so what are the structures of these url schemes,iphone | |
| reading strings instead of characters from a stream i have a <code>arraylist</code> class and trying to save it to a file. i m writing a little test method to save string to a file then load them. i found a method in the <code>filewriter</code> class to write a string. i could not find any methods in the <code>filereader</code> to read in strings. is there a way to do this,java | |
| access to the method without static i have 2 class class b and a <pre><code>public class b private car fiat; public boolean trueorfalse() { return fiat.methodfromclasscar(); } </code></pre> in class a i want to use this result from this boolean something like: <pre><code>public class a public int xyz(){ if (trueorfalse()==true){ dosomething(); } } </code></pre> always i making static all but now i cant do this. is there better way create a new object in class a: <pre><code>car cr = new car(); </code></pre> and then using <pre><code>cr.trueorfalse(); </code></pre> is good way but what i code wrong here,java | |
| python dictionary w/ 2 keys can i have a python dictionary with 2 same keys but with different elements,python | |
| why i get cannot set property na0 of undefined error this is my code: <pre><code>var places = { }; var x = 0; for (var k in data.na) { var contentid = data.na[k].contentid; var contenttype = data.na[k].contenttype; var key = contenttype + _ + contentid; var address = data.na[k].address; var topics = data.na[k].topic; var research_theme = data.na[k].research_theme; places[key][ na + x]= [address topics research_theme]; x++; } </code></pre> however it says uncaught typeerror: cannot set property na0 of undefined why i want to have na0 na1 and so on. how can i do that,javascript | |
| python: removing outliers from a list. what s wrong with this code the following code snippet is from one of my functions which is passed a list of numbers and is supposed to remove outliers (i.e. very large or very small numbers) from the list. the code does not seem to work as intended as the output confirms: <pre><code>extrema_cutoff_threshold=3.0 if list_values: avg_val = sum(list_values)/float(len(list_values)) print debug: before: min(list_values) max(list_values) avg_val list_values = [x for x in list_values if math.fabs(x - avg_val)/float(avg_val) < extrema_cutoff_threshold] list_values_len = len(list_values) if (list_values_len > 0) and (min_sample_size > 0) and (list_values_len < min_sample_size): print debug: insufficient data for stats calculation for row elif (list_values_len > 0): print debug: after: min(list_values) max(list_values) avg_val </code></pre> <strong>output:</strong> <pre><code>debug: before: 11.0 302.0 113.897260274 debug: after: 11.0 302.0 113.897260274 debug: before: 12.5 273.0 108.382352941 debug: after: 12.5 273.0 108.382352941 debug: before: 2.5 245.5 69.9166666667 debug: after: 2.5 245.5 69.9166666667 debug: before: 136.5 499.5 363.775 debug: after: 136.5 499.5 363.775 debug: before: 39.5 422.5 166.035759097 debug: after: 39.5 422.5 166.035759097 debug: before: 39.5 422.0 152.305007587 debug: after: 39.5 422.0 152.305007587 debug: before: 20.5 331.0 84.41015625 debug: after: 20.5 331.0 84.41015625 debug: before: 7.0 267.5 155.810126582 debug: after: 7.0 267.5 155.810126582 </code></pre> why are the extreme values not being filtered out,python | |
| gzip: stdin: input/output error /bin/sh: line 1: /logfo/dynamo.log-20150317.gz: permission denied <pre><code>import subprocess g_rep = zgrep i_d /logfo/dynam* f = open( fi.txt r ) for i in f: g_rep = zgrep + i + /logfo/dynam* print g_rep k = subprocess.popen([ zgrep + i + /logfo/dynamo* ] shell=true) print k g_rep = zgrep + i + /logfo/dynam* print g_rep </code></pre> when i am executing the script i got the output as: <pre><code>zgrep 211043369013 /logfo/dynam* <subprocess.popen object at 0xabe190> zgrep 211043369013 /logfo/dynam* </code></pre> but actual output should be.. <code>zgrep 211043369013 /logfo/dynam*</code> please help me how to bring in single line,python | |
| obtaining string from urlpath in nsstring in ipnone apps hi i am new to iphone development. i want to obtain string from url path for example the relative path: 90-000000-general_motors<br> i want to extract: general motors<br> if path is 90-000000-general_motors/5.jpg<br> i want to extract: 5 how can i acheive using simple coding,iphone | |
| how do i measure the speed of another object relative to the iphone i would like to measure the speed of another vehicle on a road (not one that the iphone currently is in). how would you go about measuring the speed of that other moving object,iphone | |
| checking keyboard or mouse events are done in a div how can i check if a keyboard or mouse event is done inside of a div once i check the onmousemove() event of a div it works but onkeyup onkeypress etc are not working for the div. what is the reason for that <pre><code><div onmousemove= alert(1); onkeypress= alert(2); > </code></pre> here alert(1) will be displayed but alert(2) is not displayed.,javascript | |
| what s wrong with uicolor *clr = [uicolor colorwithred:1.0 green:1.0 blue:1.0 alpha:1.0]; <pre><code>uicolor *clr = [uicolor colorwithred:1.0 green:1.0 blue:1.0 alpha:1.0]; </code></pre> i have compiler errors at above line. <ol> <li>expected ] before numeric constant</li> <li> uicolor may not respond to +colorwithred:green: </li> </ol> if i comment out that line i don t have compiler error. maybe i have this problem after i added below line in my prefix.pch. <pre><code>#define rgb(r g b) [uicolor colorwithred:r/255.0 green:g/255.0 blue:b/255.0 alpha:1] </code></pre> i had the same compiler errror. so i deleted that line from .pch and i cleaned all target in build menu and recompiled. i even rebooted. i retyped. it is useless.,iphone | |
| setvalue wont work though there is a value to use hi im trying to get a progress bar to work i have a value and cann access the property here is my code just the form because i know progress being past because i can print it out useing getvalue here is my code <pre><code> /* * to change this license header choose license headers in project properties. * to change this template file choose tools | templates * and open the template in the editor. */ package mashisgood; import java.io.file; import java.io.ioexception; import java.util.logging.level; import java.util.logging.logger; import javax.swing.jfilechooser; import javax.swing.jprogressbar; /** * * @author brett */ public class mashform extends javax.swing.jframe { private jprogressbar progressbar; /** * creates new form mashform */ public mashform() { initcomponents(); } /** * this method is called from within the constructor to initialize the form. * warning: do not modify this code. the content of this method is always * regenerated by the form editor. */ @suppresswarnings( unchecked ) // <editor-fold defaultstate= collapsed desc= generated code > private void initcomponents() { filechooser = new javax.swing.jfilechooser(); jbutton1 = new javax.swing.jbutton(); jtextfield1 = new javax.swing.jtextfield(); jprogressbar1 = new javax.swing.jprogressbar(); jbutton2 = new javax.swing.jbutton(); setdefaultcloseoperation(javax.swing.windowconstants.exit_on_close); jbutton1.settext( jbutton1 ); jbutton1.addactionlistener(new java.awt.event.actionlistener() { public void actionperformed(java.awt.event.actionevent evt) { jbutton1actionperformed(evt); } }); jtextfield1.settext( add afile to compile ); jprogressbar1.settooltiptext( ); jprogressbar1.setborder(javax.swing.borderfactory.createbevelborder(javax.swing.border.bevelborder.raised)); jprogressbar1.setstringpainted(true); jbutton2.settext( jbutton2 ); jbutton2.addactionlistener(new java.awt.event.actionlistener() { public void actionperformed(java.awt.event.actionevent evt) { jbutton2actionperformed(evt); } }); javax.swing.grouplayout layout = new javax.swing.grouplayout(getcontentpane()); getcontentpane().setlayout(layout); layout.sethorizontalgroup( layout.createparallelgroup(javax.swing.grouplayout.alignment.leading) .addgroup(layout.createsequentialgroup() .addcontainergap() .addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading) .addcomponent(jprogressbar1 javax.swing.grouplayout.default_size javax.swing.grouplayout.default_size short.max_value) .addgroup(layout.createsequentialgroup() .addcomponent(jbutton1) .addgap(18 18 18) .addcomponent(jtextfield1 javax.swing.grouplayout.default_size 289 short.max_value)) .addgroup(layout.createsequentialgroup() .addcomponent(jbutton2) .addgap(0 0 short.max_value))) .addcontainergap()) ); layout.setverticalgroup( layout.createparallelgroup(javax.swing.grouplayout.alignment.leading) .addgroup(layout.createsequentialgroup() .addcontainergap() .addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline) .addcomponent(jbutton1) .addcomponent(jtextfield1 javax.swing.grouplayout.preferred_size javax.swing.grouplayout.default_size javax.swing.grouplayout.preferred_size)) .addgap(18 18 18) .addcomponent(jprogressbar1 javax.swing.grouplayout.preferred_size javax.swing.grouplayout.default_size javax.swing.grouplayout.preferred_size) .addgap(29 29 29) .addcomponent(jbutton2) .addcontainergap(175 short.max_value)) ); jprogressbar1.getaccessiblecontext().setaccessiblename( mystatusbar ); pack(); }// </editor-fold> private void jbutton1actionperformed(java.awt.event.actionevent evt) { // todo add your handling code here: int returnval = filechooser.showopendialog(this); if (returnval == jfilechooser.approve_option) { file file = filechooser.getselectedfile(); jtextfield1.settext(file.getabsolutepath()); } else { system.out.println( file access cancelled by user. ); } } private void jbutton2actionperformed(java.awt.event.actionevent evt) { //mashisgood goodo = new mashisgood(); string[] arguments = new string[] { 1234 }; try { mashisgood.main(arguments); } catch (ioexception ex) { logger.getlogger(mashform.class.getname()).log(level.severe null ex); } } void setpgvalue(int progress) { jprogressbar1.setvalue(progress); system.out.println( get value: + +jprogressbar1.getvalue()); jprogressbar1.setvalue(69); setbar(progress); } public void setbar(int goods){ jprogressbar1.setvalue(goods); //system.out.println(); //return } /** * @param args the command line arguments */ public static void main(string args[]) { /* set the nimbus look and feel */ //<editor-fold defaultstate= collapsed desc= look and feel setting code (optional) > /* if nimbus (introduced in java se 6) is not available stay with the default look and feel. * for details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.uimanager.lookandfeelinfo info : javax.swing.uimanager.getinstalledlookandfeels()) { if ( nimbus .equals(info.getname())) { javax.swing.uimanager.setlookandfeel(info.getclassname()); break; } } } catch (classnotfoundexception | instantiationexception | illegalaccessexception | javax.swing.unsupportedlookandfeelexception ex) { java.util.logging.logger.getlogger(mashform.class.getname()).log(java.util.logging.level.severe null ex); } //</editor-fold> //</editor-fold> /* create and display the form */ java.awt.eventqueue.invokelater(() -> { new mashform().setvisible(true); }); } // variables declaration - do not modify private javax.swing.jfilechooser filechooser; private javax.swing.jbutton jbutton1; private javax.swing.jbutton jbutton2; public static javax.swing.jprogressbar jprogressbar1; private javax.swing.jtextfield jtextfield1; // end of variables declaration } </code></pre> here is the second class <pre><code>/* * to change this license header choose license headers in project properties. * to change this template file choose tools | templates * and open the template in the editor. */ package mashisgood; import java.io.*; import java.util.scanner; import java.util.regex.pattern; import javafx.application.application; import javafx.stage.stage; /** * * @author brett */ public class mashisgood extends application { public static void main(string[] args) throws ioexception { processbuilder pb = new processbuilder( ffmpeg -i c:\\users\\brett\\documents\\telegraph_road.mp4 c:\\users\\brett\\documents\\out.mp4 ); final process p = pb.start(); // create a new thread to get progress from ffmpeg command override // it s run method and start it! new thread() { @override public void run() { scanner sc = new scanner(p.geterrorstream()); // find duration pattern durpattern = pattern.compile( ( <=duration: )[^ ]* ); string dur = sc.findwithinhorizon(durpattern 0); if (dur == null) { throw new runtimeexception( could not parse duration. ); } string[] hms = dur.split( : ); double totalsecs = integer.parseint(hms[0]) * 3600 + integer.parseint(hms[1]) * 60 + double.parsedouble(hms[2]); system.out.println( total duration: + totalsecs + seconds. ); // find time as long as possible. pattern timepattern = pattern.compile( ( <=time=)[\\d:.]* ); string match; string[] matchsplit; while (null != (match = sc.findwithinhorizon(timepattern 0))) { matchsplit = match.split( : ); double progress = (integer.parseint(matchsplit[0]) * 3600 + integer.parseint(matchsplit[1]) * 60 + double.parsedouble(matchsplit[2])) / totalsecs; // system.out.printf( progress: %.2f%%%n progress * 100); mashform pgbar = new mashform(); int prog = (int)(progress * 100); pgbar.setpgvalue(prog); pgbar.setbar(prog); } } }.start(); } @override public void start(stage primarystage) throws exception { throw new unsupportedoperationexception( not supported yet. ); //to change body of generated methods choose tools | templates. } } </code></pre>,java | |
| accessing nsmutablearray in class in class1 i create an object of class2. i then use a method on this object to set its nsmutablearray <pre><code>-(void) clonearray: (nsmutablearray *) array{ pictures = [nsmutablearray arraywitharray:array]; } </code></pre> class2 is a viewcontroller which has a uiimageview. i present the class2 object after creating it. this class then has its own methods which display the next image when a swipe is detected. <pre><code>-(void) nextimageselector{ if (counter == [pictures count]-1) { counter = 1; asset = [pictures objectatindex:counter]; alassetrepresentation *assetrepresentation = [asset defaultrepresentation]; uiimage *fullscreenimage = [uiimage imagewithcgimage:[assetrepresentation fullscreenimage] scale:[assetrepresentation scale] orientation:[assetrepresentation orientation]]; photo.image = fullscreenimage; } </code></pre> the app crashes when calling the line <blockquote> if (counter == [pictures count]-1) </blockquote> so i think it is crashing because the array is created for an object and then the next array is trying to be checked is for the class instance itself. how can i fix this so that i can copy an array for this class2 to use in its own methods like the nextimageselector,iphone | |
| how to save an xml file i am developing an application. in it i want to create an xml file with some data. i want to save the xml file and retrieve it at some other time. is it possible to save and retrieve an xml file on the iphone if so how,iphone | |
| adding event listeners through for loop i m having some issues with some javascript code. what i am trying to do is add event listeners to elements in an array. the problem is that after the code is ran only the last element in the array gets the eventlistener working the rest of the elements are returning errors. i m assuming this is because of the logic i m using with the for loop and the eventlisteners. what would be an effective way to achieve the desired result <pre><code>function addslider(config) { var controls = ` <div id= next > next </div> <div id= previous > previous </div>`; var s_wrapper = config.wrapper; var controls_html = document.createelement( div ); controls_html.setattribute( id ctrl ); controls_html.innerhtml = controls; var arraydata = config.wrapper.split( ); for (i = 0; i < arraydata.length; i++) { (function(index) { document.queryselector(arraydata[i]).appendchild(controls_html); var parent = document.queryselector(arraydata[index]); console.log(i index arraydata[index] parent); document.queryselector(arraydata[index]).addeventlistener( mouseover function(){ this.queryselector( #ctrl ).style.display = block ; }) document.queryselector(arraydata[index]).addeventlistener( mouseout function(){ this.queryselector( #ctrl ).style.display = none ; }) })(i); } </code></pre> },javascript | |
| what is the equivalent keyword for extern in java i have one public static variable in one file and how can i export the same variable to other files for ex:- file1.java <pre><code>public final static int buf = 256; </code></pre> file2.java how can i access the variable buf in this file,java | |
| how to pass class method as a parameter before the instance is declared what i want to do is like this. my question is how can i call tm.test in inner. <pre><code>// testmain is a class implemented handler public void outer() { inner(testmain::test); // call inner } public void inner(handler h) { testmain tm = new testmain(); //invoke tm.h() i.e. invoke tm.test() in this example } public interface handler<m> { void entityselector(); } </code></pre> <ul> <li>i know how to call tm.test in inner if tm is declared in method outer i.e. pass the function as tm::test</li> <li>but i have to declare the instance every time i call inner.</li> </ul>,java | |
| pythonic way of returning none if input itself is none what s the best way to write a <em>null-check</em> in python <code>try-except</code> blocks <code>if</code> blocks... given a function that returns <code>none</code> if the input is <code>none</code> a valid input what s the best approach to deal with this situation take this function for example: <pre><code>def urlify(path): if path is none: return none return <a href=\ {0!s}\ >{0!s}</a> .format(path) </code></pre>,python | |
| how to get python program to read and print with tiered data i am still a newbie developer with not much time under my belt with this. i have a .csv file that i constructed that contains facility id sequence for the facility and the nsn for the sequence. i have a .csv that contains every value possible for facility sequence and nsn along with a a file that just has a facility a lightly structured product that i need. there is a total of 476 different facilities 2935 sequences. there are multiple nsns per sequence but not every sequence has an nsn and not every facility requires a sequence. what i desire is a .csv output with facility sequence and nsn for every line there is an nsn. *data is just simplified examples <pre><code> desired output input |||| vvvv facility sequence nsn 104b 104b 22a 55-51a 22a 104b 22a 63-42c 55-51a 104b 24x 55-50a 63-42c 209c 22a 55-50a 24x 209c 39g 63-12l 55-50a 632f 99y 44-10q </code></pre> my problem is i only have a rough idea of what needs to be done and i think the direction i am going currently will only produce one facility sequence and nsn before moving onto the next facility to repeat. this is only a rough draft edits/simple ideas are greatly appreciated advance suggestions should be explained in great depth on how they work or a complete example because i would not know what to do with it other wise. *note the quantity is something extra that probably wont make it to the end of dev because it has already been compiled. def main(): import os <pre><code>filelist = list() filewrite = open( nsn.txt w ) class facility: represents facility filefacilitysource = open ( facility.csv r ) def __init__ (self facilityid): self.facilityid=facilityid #facilityid is the facility id number self.seqlist=list() def addseq(self seq): self.seqlist.append(seq) def findseq(self seq): for s in self.seqlist: if s.seqid==seqidtofind: return s class sequence: sequence filesequencesource = open ( sequence.csv r ) def __init__(self seqid id): self.seqid=seqid #seqid is the sequence for the facility self.id=id #id is the id number associated with the sequence for its place self.nsnlist=list() def addnsn(self nsn): self.nsnlist.append(nsn) class nsn: nsn filensnsource = open ( nsn.csv r ) def __init__ (self nsnid qty): self.nsnid=nsnid #nsnid is the nsn for the sequence self.qty=qty #qty is the quantity associated with the nsn def search(): for keywords in filensnlist: if facility in line: if sequence in line: if nsn in line: print facility sequence nsn filelist.append(line) thestring = .join(filelist) searchfile.close() filewrite.write(thestring) filewrite.close() main() </code></pre>,python | |
| how to speed-up drawrect i m coding a map app for <strong>iphone</strong> like google maps but with my own maps. what i have so far is working but sadly slower than i would like. i m basically drawing the correct map tiles in each <code>drawrect</code>:<br> <code>[image drawatpoint:cgpointmake(x y)];</code> x and y are being calculated in each call to <code>drawrect</code><br> ( these calcs are not very expensive ). the maximum number of images being drawn at a time is 4.<br> each image is <code>512 x 512</code>. i feel that some kind of optimization is lacking here. can anyone help with something <br> thanks you all.,iphone | |
| detecting movement with an iphone can the iphone detect its movement in terms of distance would one be able to use a built in function on an iphone to determine the distance the phone has moved so that the speed of movement can be calculated basically my question is can an iphone detect its position and distance moved without using the gps thanks,iphone | |
| adding a function to a prototype does not work i am trying to add a function to prototype like this <pre><code>function dog(name breed) { this.name = name; this.breed = breed; } function barkwithme() { console.log( woof woof i am + this.name); } dog.prototype.bark = barkwithme(); var snoopy = new dog(); snoopy.bark(); </code></pre> but it displays an error <pre><code>uncaught typeerror: snoopy.bark is not a function </code></pre> please tell me where am i wrong. thanks.,javascript | |
| my python wumpus game not ending i m doing the wumpus game from hello python. unfortunately whether the player wastes his only arrow or the wumpus eats him the game does not end. i ve tried fiddling with the code but to be honest i m just a beginner and still learning. here is the code <pre><code> from random import choice import random cave_numbers = range(0 20) caves =[] for i in cave_numbers: caves.append([]) unvisited_caves = range(0 20) visited_caves = [0] #unvisited caves == [] unvisited_caves.remove(0) while unvisited_caves != []: i = choice(visited_caves) if len(caves[i]) >= 3: break next_cave = choice(unvisited_caves) caves[i].append(next_cave) caves[next_cave].append(i) visited_caves.append(next_cave) unvisited_caves.remove(next_cave) for number in cave_numbers: print number : caves[number] print ---------- for i in cave_numbers: while len(caves[i]) < 3: passage_to = choice(cave_numbers) caves[i].append(passage_to) for i in cave_numbers: while len(caves[i]) < 3: passage_to = choice(cave_numbers) caves[i].append(passage_to) for number in cave_numbers: print number : caves[number] print ---------- for i in cave_numbers: for j in range(3): passage_to = choice(cave_numbers) caves[i].append(passage_to) print caves wumpus_location = choice(cave_numbers) player_location = choice(cave_numbers) #while player_location == wumpus_location player_location = choice(cave_numbers) print welcome to hunt the wumpus! print you can see len(cave_numbers) caves print to play just type the number print of the cave you wish to enter next while true: def print_location(player_location): tell the player where they are print you are in cave player_location print from here you can see caves: print caves[player_location] if wumpus_location in caves[player_location]: print i smell and horrible wumpus! def setup_caves(cave_numbers): create the starting list of caves caves = [] for cave in cave_numbers: caves.append([]) return caves def link_caves(): make sure all of the caves are conneceted with two-way tunnels while unvisited_caves != []: this_cave = choose_cave(visited_caves) next_cave = choose_cave(unvisited_caves) create_tunnel(this_cave next_cave) visit_cave(next_cave) def finish_caves(): link the rest of the caves with one-way tunnels for cave in cave_numbers: while len(caves[cave]) < 3: passage_to = choose_cave(cave_numbers) caves[cave].append(passage_to) def ask_for_cave(): ask the player to choose a cave from their current_location. player_input = raw_input( which cave ) if (not player_input.isdigit() or int(player_input) not in caves[player_location]): print player_input + print that s not a direction that i can see! else: return int(player_input) def get_action(): find out what the player wants to do next. print what do you do next print m) move print a) fire an arrow action = raw_input( > ) if action == m or action == a : return action else: print action + print that s not an action that i know about return none def do_movement(): print moving.... new_location = ask_for_cave() if new_location is none: return player_location else: return new_location def do_shooting(): print firing... shoot_at = ask_for_cave() if shoot_at is none: return false if shoot_at == wumpus_location: print kapow! well done buddy you shot the mighty wumpus! print you are the mighty wumpus hunter. else: print twang... clatter clatter! print you wasted your only arrow! print empty handed you begin the print long trek back to your village. a failure. return true #... while 1: print_location(player_location) action = get_action() if action is none: continue if action == m : player_location = do_movement() if player_location == wumpus_location: print argh the wumpus ate you! print game over bro game over! break if action == a : game_over = do_shooting() if game_over: break </code></pre>,python | |
| iphone application crash my application works fine on all my devices. but it crashes on clients devices. below is the crash log. can anyone help.. i am lost... <pre><code>incident identifier: 8c60587c-4152-4e29-a1f1-ac780b63bb45 crashreporter key: 09cad4f13a4c6b81b63d81504cd8b58e5eea4fd7 hardware model: iphone3 1 process: cadoinpiedi [73] path: /var/mobile/applications/4074dcae-e48f-443a-9215-1498c2940984/cadoinpiedi.app/cadoinpiedi identifier: cadoinpiedi version: ( ) code type: arm (native) parent process: launchd [1] date/time: 2011-03-10 10:10:16.637 +0100 os version: iphone os 4.3 (8f190) report version: 104 exception type: exc_crash (sigabrt) exception codes: 0x00000000 0x00000000 crashed thread: 0 thread 0 name: dispatch queue: com.apple.main-thread thread 0 crashed: 0 libsystem_kernel.dylib 0x315fca1c 0x315eb000 + 72220 1 libsystem_c.dylib 0x36b193b4 0x36ae6000 + 209844 2 libsystem_c.dylib 0x36b11bf8 0x36ae6000 + 179192 3 libstdc++.6.dylib 0x34df0a64 0x34dac000 + 281188 4 libobjc.a.dylib 0x36f8406c 0x36f7e000 + 24684 5 libstdc++.6.dylib 0x34deee36 0x34dac000 + 273974 6 libstdc++.6.dylib 0x34deee8a 0x34dac000 + 274058 7 libstdc++.6.dylib 0x34deef5a 0x34dac000 + 274266 8 libobjc.a.dylib 0x36f82c84 0x36f7e000 + 19588 9 corefoundation 0x32d3f48a 0x32ca1000 + 648330 10 corefoundation 0x32d3f4c4 0x32ca1000 + 648388 11 corefoundation 0x32cb19d0 0x32ca1000 + 68048 12 cadoinpiedi 0x0000bc7c 0x1000 + 44156 13 foundation 0x3299d388 0x32907000 + 615304 14 libxml2.2.dylib 0x371f620e 0x371eb000 + 45582 15 libxml2.2.dylib 0x371febba 0x371eb000 + 80826 16 foundation 0x3299cd5e 0x32907000 + 613726 17 cadoinpiedi 0x0000b528 0x1000 + 42280 18 foundation 0x329192ee 0x32907000 + 74478 19 foundation 0x32919270 0x32907000 + 74352 20 cfnetwork 0x3684040a 0x36831000 + 62474 21 cfnetwork 0x36834f42 0x36831000 + 16194 22 cfnetwork 0x36834e34 0x36831000 + 15924 23 cfnetwork 0x36834de6 0x36831000 + 15846 24 cfnetwork 0x36834d58 0x36831000 + 15704 25 cfnetwork 0x36834cd6 0x36831000 + 15574 26 corefoundation 0x32d16a72 0x32ca1000 + 481906 27 corefoundation 0x32d18758 0x32ca1000 + 489304 28 corefoundation 0x32d194e4 0x32ca1000 + 492772 29 corefoundation 0x32ca9ebc 0x32ca1000 + 36540 30 corefoundation 0x32ca9dc4 0x32ca1000 + 36292 31 graphicsservices 0x30f51418 0x30f4d000 + 17432 32 graphicsservices 0x30f514c4 0x30f4d000 + 17604 33 uikit 0x35f1fd62 0x35ef1000 + 191842 34 uikit 0x35f1d800 0x35ef1000 + 182272 35 cadoinpiedi 0x00002210 0x1000 + 4624 36 cadoinpiedi 0x00002190 0x1000 + 4496 thread 1: 0 libsystem_kernel.dylib 0x315fd3ec 0x315eb000 + 74732 1 libsystem_c.dylib 0x36b1a6d8 0x36ae6000 + 214744 2 libsystem_c.dylib 0x36b1abbc 0x36ae6000 + 215996 thread 2 name: dispatch queue: com.apple.libdispatch-manager thread 2: 0 libsystem_kernel.dylib 0x315fdfbc 0x315eb000 + 77756 1 libdispatch.dylib 0x328fa094 0x328f4000 + 24724 2 libdispatch.dylib 0x328fb04a 0x328f4000 + 28746 3 libdispatch.dylib 0x328fa60a 0x328f4000 + 26122 4 libsystem_c.dylib 0x36b1a58a 0x36ae6000 + 214410 5 libsystem_c.dylib 0x36b1abbc 0x36ae6000 + 215996 thread 3: 0 libsystem_kernel.dylib 0x315fd3ec 0x315eb000 + 74732 1 libsystem_c.dylib 0x36b1a6d8 0x36ae6000 + 214744 2 libsystem_c.dylib 0x36b1abbc 0x36ae6000 + 215996 thread 4 name: webthread thread 4: 0 libsystem_kernel.dylib 0x315fac00 0x315eb000 + 64512 1 libsystem_kernel.dylib 0x315fa758 0x315eb000 + 63320 2 corefoundation 0x32d172b8 0x32ca1000 + 484024 3 corefoundation 0x32d19562 0x32ca1000 + 492898 4 corefoundation 0x32ca9ebc 0x32ca1000 + 36540 5 corefoundation 0x32ca9dc4 0x32ca1000 + 36292 6 webcore 0x31a0037a 0x319fa000 + 25466 7 libsystem_c.dylib 0x36b1930a 0x36ae6000 + 209674 8 libsystem_c.dylib 0x36b1abb4 0x36ae6000 + 215988 thread 5: 0 libsystem_kernel.dylib 0x315fac00 0x315eb000 + 64512 1 libsystem_kernel.dylib 0x315fa758 0x315eb000 + 63320 2 corefoundation 0x32d172b8 0x32ca1000 + 484024 3 corefoundation 0x32d19562 0x32ca1000 + 492898 4 corefoundation 0x32ca9ebc 0x32ca1000 + 36540 5 corefoundation 0x32ca9dc4 0x32ca1000 + 36292 6 foundation 0x329317f6 0x32907000 + 174070 7 foundation 0x32924382 0x32907000 + 119682 8 foundation 0x329965c6 0x32907000 + 587206 9 libsystem_c.dylib 0x36b1930a 0x36ae6000 + 209674 10 libsystem_c.dylib 0x36b1abb4 0x36ae6000 + 215988 thread 6 name: com.apple.cfsocket.private thread 6: 0 libsystem_kernel.dylib 0x315fcc60 0x315eb000 + 72800 1 corefoundation 0x32d1c8f2 0x32ca1000 + 506098 2 libsystem_c.dylib 0x36b1930a 0x36ae6000 + 209674 3 libsystem_c.dylib 0x36b1abb4 0x36ae6000 + 215988 thread 0 crashed with arm thread state: r0: 0x00000000 r1: 0x00000000 r2: 0x00000001 r3: 0x00000000 r4: 0x3fcca48c r5: 0x00000006 r6: 0x0019bc6c r7: 0x2fdfe658 r8: 0x3f60dbf8 r9: 0x00000065 r10: 0x361eafd8 r11: 0x361e82f0 ip: 0x00000148 sp: 0x2fdfe64c lr: 0x36b193bb pc: 0x315fca1c cpsr: 0x000f0010 binary images: 0x1000 - 0x19fff +cadoinpiedi armv7 <d248922f1069f2847106e98c1e5a11ba> /var/mobile/applications/4074dcae-e48f-443a-9215-1498c2940984/cadoinpiedi.app/cadoinpiedi 0x2fe00000 - 0x2fe25fff dyld armv7 <8dbdf7bab30e355b81e7b2e333d5459b> /usr/lib/dyld 0x30e94000 - 0x30e98fff assetslibraryservices armv7 <2e841b3daf303b38bbd82e0954659af4> /system/library/privateframeworks/assetslibraryservices.framework/assetslibraryservices 0x30f1e000 - 0x30f4cfff mime armv7 <a9fa461fb9e7378789a3091b69504a09> /system/library/privateframeworks/mime.framework/mime 0x30f4d000 - 0x30f59fff graphicsservices armv7 <c37066a0784335d189f009ff4965717d> /system/library/privateframeworks/graphicsservices.framework/graphicsservices 0x30f5a000 - 0x30f5cfff mobileinstallation armv7 <94b6d6c5d9883175af26764567528127> /system/library/privateframeworks/mobileinstallation.framework/mobileinstallation 0x3106e000 - 0x3106efff libdnsinfo.dylib armv7 <21415179ffa03f949fa8cc851c6c31c7> /usr/lib/system/libdnsinfo.dylib 0x31157000 - 0x3115ffff mobilebluetooth armv7 <d0167be199b234f5bd233380111b2735> /system/library/privateframeworks/mobilebluetooth.framework/mobilebluetooth 0x31160000 - 0x3117ffff bom armv7 <b178e3efb4d733c694bd5a55e57a314f> /system/library/privateframeworks/bom.framework/bom 0x31256000 - 0x31259fff actorkit armv7 <f7aa6cdd654231988aafcf448978f450> /system/library/privateframeworks/actorkit.framework/actorkit 0x3125a000 - 0x31263fff itsync armv7 <dc57c003aad83864827ccf95fc579563> /system/library/privateframeworks/itsync.framework/itsync 0x31268000 - 0x312aafff coreaudio armv7 <d45e275525ef3c32b36e0f1020cad705> /system/library/frameworks/coreaudio.framework/coreaudio 0x312ab000 - 0x312aefff captivenetwork armv7 <fc834fd33a18341ea7506587ad895703> /system/library/privateframeworks/captivenetwork.framework/captivenetwork 0x312c9000 - 0x312d3fff accountsettings armv7 <d083fb384dc7311eb6766b9b2d2dd9c8> /system/library/privateframeworks/accountsettings.framework/accountsettings 0x31304000 - 0x31337fff storeservices armv7 <a74659288dea34bca7a7911c19cf2c28> /system/library/privateframeworks/storeservices.framework/storeservices 0x31338000 - 0x31339fff coresurface armv7 <7b83cd757da73e6e826693c29296d3fa> /system/library/privateframeworks/coresurface.framework/coresurface 0x3143a000 - 0x3143bfff libsystem_blocks.dylib armv7 <ccc041df3de73eafb7a59e74cdb1702b> /usr/lib/system/libsystem_blocks.dylib 0x31543000 - 0x31547fff libgfxshared.dylib armv7 <2c61a8f7e7bf32d890e957d768d769ce> /system/library/frameworks/opengles.framework/libgfxshared.dylib 0x31548000 - 0x3157bfff quicklook armv7 <29d2d981d1d6358381f5716ee37314b4> /system/library/frameworks/quicklook.framework/quicklook 0x3157c000 - 0x3157ffff libmacho.dylib armv7 <0479a171c00d3f629d639713acb72b5b> /usr/lib/system/libmacho.dylib 0x315b0000 - 0x315d0fff appleaccount armv7 <4e0ac5cf93b338ab8c5f34ba3c5e2ee4> /system/library/privateframeworks/appleaccount.framework/appleaccount 0x315eb000 - 0x31602fff libsystem_kernel.dylib armv7 <29eb602b615b3c3b95722868100a2d1c> /usr/lib/system/libsystem_kernel.dylib 0x31658000 - 0x3165dfff libnotify.dylib armv7 <9d7198e91de9386a9e5ea43608a66a57> /usr/lib/system/libnotify.dylib 0x3168a000 - 0x316bdfff appsupport armv7 <0217468bd9f839229a47910b7816b3d5> /system/library/privateframeworks/appsupport.framework/appsupport 0x316ee000 - 0x3173ffff libsqlite3.dylib armv7 <8a41cc6a6d9332308bc415d27577fd24> /usr/lib/libsqlite3.dylib 0x31784000 - 0x31790fff springboardservices armv7 <c78c28a259ad35ddb01512beb5fcea95> /system/library/privateframeworks/springboardservices.framework/springboardservices 0x31795000 - 0x31832fff addressbookui armv7 <e354aeb3d96e30338e90cc3638ffe81b> /system/library/frameworks/addressbookui.framework/addressbookui 0x3183d000 - 0x31844fff libmobilegestalt.dylib armv7 <55f29184efcc3046bb833dd72a4487e1> /usr/lib/libmobilegestalt.dylib 0x31845000 - 0x31999fff audiotoolbox armv7 <3b599e96ffe93b1ea2aa6026dee809dc> /system/library/frameworks/audiotoolbox.framework/audiotoolbox 0x3199a000 - 0x3199ffff libcopyfile.dylib armv7 <a19b1caf96c73568b14a1660f147ae2f> /usr/lib/system/libcopyfile.dylib 0x319a0000 - 0x319f9fff eventkit armv7 <0d4e597ee229337183e96e921a72e30a> /system/library/frameworks/eventkit.framework/eventkit 0x319fa000 - 0x32002fff webcore armv7 <9c7e4a156f6a381ea02f99ece48a46fe> /system/library/privateframeworks/webcore.framework/webcore 0x32005000 - 0x32007fff crashreportersupport armv7 <4d521bd4a1be3448a7d2bac1d09c5ff9> /system/library/privateframeworks/crashreportersupport.framework/crashreportersupport 0x32008000 - 0x32017fff mobiledevicelink armv7 <f258d39dc7d93faa9c9ff5cf81c5dcbd> /system/library/privateframeworks/mobiledevicelink.framework/mobiledevicelink 0x32020000 - 0x32021fff libsystem_network.dylib armv7 <39bf0f48bd8539169a77f8f61cdcd4c9> /usr/lib/system/libsystem_network.dylib 0x320de000 - 0x320e3fff mobilekeybag armv7 <8c35c090bc373cb181fc26b961b8dba5> /system/library/privateframeworks/mobilekeybag.framework/mobilekeybag 0x3220b000 - 0x32214fff mobilewifi armv7 <5b634ed28af339719e3c279224531ccb> /system/library/privateframeworks/mobilewifi.framework/mobilewifi 0x32216000 - 0x3224afff videotoolbox armv7 <aec2e22a2055380e82d4d0279faad0a7> /system/library/privateframeworks/videotoolbox.framework/videotoolbox 0x32267000 - 0x3227cfff libresolv.9.dylib armv7 <e92cfbb83f7b330db19181e797bb3f7b> /usr/lib/libresolv.9.dylib 0x322b2000 - 0x323d3fff coregraphics armv7 <54e27b8aa66c32b48ffeadadcc514331> /system/library/frameworks/coregraphics.framework/coregraphics 0x323d4000 - 0x3241afff coretelephony armv7 <2b9ebb05fdea38938dde802c8280b3ea> /system/library/frameworks/coretelephony.framework/coretelephony 0x32426000 - 0x32428fff libgcc_s.1.dylib armv7 <a2631ac302f4310dae8367939e16b7c2> /usr/lib/libgcc_s.1.dylib 0x32450000 - 0x32450fff libcvmspluginsupport.dylib armv7 <68322643de8030978c862de530055bd9> /system/library/frameworks/opengles.framework/libcvmspluginsupport.dylib 0x325cb000 - 0x325dafff notes armv7 <d9c976ca976e3d029f69febd48f17601> /system/library/privateframeworks/notes.framework/notes 0x325dd000 - 0x325e8fff libz.1.dylib armv7 <ac706bee36593dc683fd5a96a389d72e> /usr/lib/libz.1.dylib 0x325eb000 - 0x3262efff managedconfiguration armv7 <ffab9d7f5b5b315085783caf030932bf> /system/library/privateframeworks/managedconfiguration.framework/managedconfiguration 0x3262f000 - 0x326d5fff celestial armv7 <1d37083fe4253a2fb271c0ca0a42e283> /system/library/privateframeworks/celestial.framework/celestial 0x326dd000 - 0x326e0fff applepushservice armv7 <015c68c15621348db9f6a012499170e1> /system/library/privateframeworks/applepushservice.framework/applepushservice 0x32758000 - 0x32765fff libbsm.0.dylib armv7 <0a1e2bb78d5138419ecad8ba0fe42fdd> /usr/lib/libbsm.0.dylib 0x32766000 - 0x327adfff messageui armv7 <35a81f5d4eb03467a1447db80337e570> /system/library/frameworks/messageui.framework/messageui 0x327be000 - 0x328c6fff coredata armv7 <9843a401dd1d322383e3e40021cc8b95> /system/library/frameworks/coredata.framework/coredata 0x328ee000 - 0x328f3fff libsystem_dnssd.dylib armv7 <1eaf25ddd98e3a249bca536671c5819d> /usr/lib/system/libsystem_dnssd.dylib 0x328f4000 - 0x32901fff libdispatch.dylib armv7 <6c4eeb08757b365f8429ef6747f89ad3> /usr/lib/system/libdispatch.dylib 0x32907000 - 0x32a26fff foundation armv7 <60d1a3b3937c3c7ab21d701fb337346c> /system/library/frameworks/foundation.framework/foundation 0x32a36000 - 0x32a36fff veclib armv7 <0c60cd0a60f43d2791d36cb357d30e3c> /system/library/frameworks/accelerate.framework/frameworks/veclib.framework/veclib 0x32a6b000 - 0x32a6cfff datamigration armv7 <42e9e87a4e0735c3837e27d4f2adcf55> /system/library/privateframeworks/datamigration.framework/datamigration 0x32c22000 - 0x32c42fff printkit armv7 <e5a01ca9083a36afacc08611a398e2ad> /system/library/privateframeworks/printkit.framework/printkit 0x32c71000 - 0x32ca0fff systemconfiguration armv7 <1d73b8a159363f96bb9c039655c5eae6> /system/library/frameworks/systemconfiguration.framework/systemconfiguration 0x32ca1000 - 0x32d86fff corefoundation armv7 <4f643539f91f330790f112ea7150b3a8> /system/library/frameworks/corefoundation.framework/corefoundation 0x32fab000 - 0x33040fff imageio armv7 <d520e3241d1130e8ac1375ee0f2c1095> /system/library/frameworks/imageio.framework/imageio 0x33046000 - 0x33049fff iosurface armv7 <ad50e71624583d06b891344d832f9b08> /system/library/privateframeworks/iosurface.framework/iosurface 0x33137000 - 0x3313dfff protocolbuffer armv7 <c9798b4dd29335248000d698dea938bd> /system/library/privateframeworks/protocolbuffer.framework/protocolbuffer 0x34bf1000 - 0x34c60fff proofreader armv7 <6d843c6aecdd37ae84baa40af8ad7e65> /system/library/privateframeworks/proofreader.framework/proofreader 0x34d02000 - 0x34d39fff security armv7 <163414ba17df347ca76088015010e2c4> /system/library/frameworks/security.framework/security 0x34d56000 - 0x34d92fff libglimage.dylib armv7 <79d00adb09de3da991ed21f48f27adb4> /system/library/frameworks/opengles.framework/libglimage.dylib 0x34d9b000 - 0x34d9bfff accelerate armv7 <7d5ad465049136afaa1f0d89aac600bc> /system/library/frameworks/accelerate.framework/accelerate 0x34dac000 - 0x34df6fff libstdc++.6.dylib armv7 <b2cac408951c3f3c9ba3cf563e54ce81> /usr/lib/libstdc++.6.dylib 0x34e23000 - 0x34e27fff libcache.dylib armv7 <36e96d0a7dda330281a43172d0ada49a> /usr/lib/system/libcache.dylib 0x34e2d000 - 0x34e3dfff webbookmarks armv7 <6956561235333e74b8ff316cb2edc93e> /system/library/privateframeworks/webbookmarks.framework/webbookmarks 0x3532c000 - 0x35446fff libicucore.a.dylib armv7 <bada0c2725bb31a483d5adf9aaf1f8df> /usr/lib/libicucore.a.dylib 0x3549e000 - 0x354f3fff libvdsp.dylib armv7 <0221caba81a235c5a896a835e2aac047> /system/library/frameworks/accelerate.framework/frameworks/veclib.framework/libvdsp.dylib 0x35667000 - 0x3569ffff libcgfreetype.a.dylib armv7 <ccea634795153164a681f0f311f4461d> /system/library/frameworks/coregraphics.framework/resources/libcgfreetype.a.dylib 0x356b9000 - 0x357bdfff javascriptcore armv7 <f63386018d703534b766514e4bbbd1d8> /system/library/privateframeworks/javascriptcore.framework/javascriptcore 0x357be000 - 0x357cefff dataaccessexpress armv7 <66d9047da79a31daa887e6d84c42ecb2> /system/library/privateframeworks/dataaccessexpress.framework/dataaccessexpress 0x357cf000 - 0x357d1fff iomobileframebuffer armv7 <de8392b1117135e592a16e1cb6d26af5> /system/library/privateframeworks/iomobileframebuffer.framework/iomobileframebuffer 0x35a0e000 - 0x35a41fff icalendar armv7 <e52c54abaab734e8b0278f358217c4b5> /system/library/privateframeworks/icalendar.framework/icalendar 0x35a42000 - 0x35a5ffff libsystem_info.dylib armv7 <48016be86e3f3cd9aeee1c6590e1ac6f> /usr/lib/system/libsystem_info.dylib 0x35a60000 - 0x35aaefff gmm armv7 <03cb1e098c4932e58b0933dfc58f9116> /system/library/privateframeworks/gmm.framework/gmm 0x35ab8000 - 0x35d9ffff liblapack.dylib armv7 <652c97e211553d4e84968a61f62a0ac5> /system/library/frameworks/accelerate.framework/frameworks/veclib.framework/liblapack.dylib 0x35da1000 - 0x35da2fff libdyld.dylib armv7 <41a7b5e5d9983449ab33affed0f635ad> /usr/lib/system/libdyld.dylib 0x35dba000 - 0x35dbafff libsystem_sandbox.dylib armv7 <f47c01d627853b328e088b3fdd08e87d> /usr/lib/system/libsystem_sandbox.dylib 0x35dbb000 - 0x35e02fff corelocation armv7 <565c18af7dfc3c92a63cc4c249913650> /system/library/frameworks/corelocation.framework/corelocation 0x35e65000 - 0x35e7bfff eap8021x armv7 <b755ecad7b6a3009a5f4a0fdc5f9bdd7> /system/library/privateframeworks/eap8021x.framework/eap8021x 0x35e80000 - 0x35ea9fff contentindex armv7 <f5a3613ec5b6392995d7ed0742f7419f> /system/library/privateframeworks/contentindex.framework/contentindex 0x35ebb000 - 0x35ef0fff addressbook armv7 <64500984cfb13a098c3c687c37a80fff> /system/library/frameworks/addressbook.framework/addressbook 0x35ef1000 - 0x3627efff uikit armv7 <bc8d14fa59e136b6a28ac025384daf08> /system/library/frameworks/uikit.framework/uikit 0x362d1000 - 0x3630efff coretext armv7 <fb6a72faec2330c4b2cd33c2e9c59588> /system/library/frameworks/coretext.framework/coretext 0x36310000 - 0x36315fff liblaunch.dylib armv7 <f5ccc8234aea3ebd9a88bd37f0fa23ae> /usr/lib/system/liblaunch.dylib 0x36316000 - 0x3631ffff corevideo armv7 <ea847e6dba2d36b1826b255c73b39539> /system/library/frameworks/corevideo.framework/corevideo 0x36320000 - 0x36327fff aggregatedictionary armv7 <ab9777b39e8e3026ad64dc90323cad7e> /system/library/privateframeworks/aggregatedictionary.framework/aggregatedictionary 0x36328000 - 0x36356fff dataaccess armv7 <3a2e67aa1d8834b7a8fc2fbb56654b15> /system/library/privateframeworks/dataaccess.framework/dataaccess 0x3671f000 - 0x36726fff libbz2.1.0.dylib armv7 <0a082e1d475432959ba93aa3dbf7fb31> /usr/lib/libbz2.1.0.dylib 0x3672e000 - 0x3673cfff opengles armv7 <f02d1c50f0f33991adb1a2caed02eb77> /system/library/frameworks/opengles.framework/opengles 0x36741000 - 0x36780fff libsystem.b.dylib armv7 <b5735b0f3dba32c087c5b58aa48ae592> /usr/lib/libsystem.b.dylib 0x36781000 - 0x36830fff quartzcore armv7 <ef9632c9781f3101916b65e9faae1579> /system/library/frameworks/quartzcore.framework/quartzcore 0x36831000 - 0x368f0fff cfnetwork armv7 <84a2d312145e3dbf97aea052927dcdb9> /system/library/frameworks/cfnetwork.framework/cfnetwork 0x3691c000 - 0x36945fff mobilecoreservices armv7 <57fef84bdc17301d8bf53ba0fb967fe6> /system/library/frameworks/mobilecoreservices.framework/mobilecoreservices 0x36946000 - 0x3695ffff librip.a.dylib armv7 <4825c3e392983aba947eca06555e4480> /system/library/frameworks/coregraphics.framework/resources/librip.a.dylib 0x36a37000 - 0x36a95fff libblas.dylib armv7 <d3f7360687333cad987890c314ae0d6f> /system/library/frameworks/accelerate.framework/frameworks/veclib.framework/libblas.dylib 0x36aad000 - 0x36aaefff libremovefile.dylib armv7 <5f077c4d204d3cd7b04452c42d41f763> /usr/lib/system/libremovefile.dylib 0x36ae6000 - 0x36b67fff libsystem_c.dylib armv7 <caa1846ad2583d1b84c1a15c50c126a2> /usr/lib/system/libsystem_c.dylib 0x36c62000 - 0x36d4ffff libiconv.2.dylib armv7 <f4146ce07e3031ea8a81fa5516fd77d0> /usr/lib/libiconv.2.dylib 0x36d55000 - 0x36d58fff certui armv7 <9060fe03a4943ef295531feced9a17dd> /system/library/privateframeworks/certui.framework/certui 0x36e81000 - 0x36e83fff mailservices armv7 <adbbafb0ea513e00ae3c6ec8f0251410> /system/library/privateframeworks/mailservices.framework/mailservices 0x36e84000 - 0x36ebcfff iokit armv7 <80ae313ad69d3363935c88e51a11862d> /system/library/frameworks/iokit.framework/versions/a/iokit 0x36ebd000 - 0x36f47fff message armv7 <e2a583f640503bdba0eac23e7a919f84> /system/library/privateframeworks/message.framework/message 0x36f7e000 - 0x37042fff libobjc.a.dylib armv7 <f855251d90a53bdbb5d5a39fdbde6d9b> /usr/lib/libobjc.a.dylib 0x37048000 - 0x37088fff coremedia armv7 <66ee3ed5265f3d49a274dc9a07d27d52> /system/library/frameworks/coremedia.framework/coremedia 0x3709a000 - 0x370bafff mobilesync armv7 <4df400c4559435889eccd88db77a110c> /system/library/privateframeworks/mobilesync.framework/mobilesync 0x3711a000 - 0x3711cfff libaccessibility.dylib armv7 <d55f1553d14831a2a5435ae27ef75ef4> /usr/lib/libaccessibility.dylib 0x37139000 - 0x371eafff webkit armv7 <8f2fd63295d83121b1db9097938ad31f> /system/library/privateframeworks/webkit.framework/webkit 0x371eb000 - 0x37294fff libxml2.2.dylib armv7 <5538d3f2c7d83b88b06168488fe6326b> /usr/lib/libxml2.2.dylib 0x37295000 - 0x3729bfff liblockdown.dylib armv7 <14c89b7346433c1f8675f454531f6ca3> /usr/lib/liblockdown.dylib 0x3731d000 - 0x37469fff mediatoolbox armv7 <46c1dd5571de3f7dae97dcde85ca933c> /system/library/privateframeworks/mediatoolbox.framework/mediatoolbox 0x3759b000 - 0x375aefff libmis.dylib armv7 <529ea6e3a87230ce9f6cf3285c22429c> /usr/lib/libmis.dylib 0x375af000 - 0x375fcfff coremotion armv7 <e0349aa7dd1c3454a970ea1939279801> /system/library/frameworks/coremotion.framework/coremotion 0x37614000 - 0x37626fff persistentconnection armv7 <6d30b5ef735f36a79cfc82c9b6606db9> /system/library/privateframeworks/persistentconnection.framework/persistentconnection </code></pre>,iphone | |
| what does it mean by having 2 equal classes <pre><code> public boolean isafraidof(animal animal) { //compare the class of this animal to bird if (animal.getclass() == bird.class) { return false; } else { return true; } </code></pre> <strong>animal is the super class and bird is the subclass i need to know the differentiator on which they compare the two classes and thanks in advance</strong>,java | |
| the this keyword in a function i have a function in javascript: <pre><code>function main() { console.log(this); } </code></pre> how come this logs <code>document</code> surely it should log <code>function main</code> if not then how do i declare a variable within <code>main</code> to be accessed by the rest of the code as <code>main.varname</code> thank you!,javascript | |
| break outside of loop when in loop my script returns an error saying <code>break</code> is outside of a loop when the <code>break</code> is inside an if statement. why how do i fix this writing a script out of a book <pre><code>if hook_address: hooks.add(dbg hook_address 2 ssl_sniff none) print [*] nspr4.pr_write hooked at: 0x%o8x %hook_address break else: print [!] error: couldn t resolve hook address! sys.exit(-1) </code></pre> <blockquote> c:\0xic-zex\python>sniffer.py file c:\0xic-zex\python\sniffer.py line 32 break syntaxerror: break outside loop </blockquote> whats wrong my <code>break</code> is in the <code>if</code> loop.,python | |
| is it acceptable if actual and formal parameters have the same name like this: <pre><code>mymethod(first second) public void mymethod(int first int second) </code></pre> my teacher said it s preferred not to name them the same. but i don t see the reason why is he wrong,java | |
| java input and out put hi my code should do this instruction below but am not getting it at all <strong>the user can enter as many positive floating-point numbers on the console as desired. zero (or a negative numbers) signals end of input (no more numbers can be entered). after input the program displays the smallest number entered (min) the largest number entered (max) the mean of all numbers entered (mean) do not use arrays for this assignment even if you know them.</strong> sample should look like this <blockquote> enter numbers: \n 1 2 3 4 5 6 0 \n numbers entered: 6 \n minimum: 1.00 \n maximum:6.00 \n mean: 3.50\n enter numbers: \n 0 \n no number entered. </blockquote> <pre><code>public class loopstatistics { public static void main(string[] args) { double max min sum=0 input mean=0; int counter = 0; textio.putln( enter numbers: ); do { input = textio.getdouble(); min = input; max = input; counter++; if (input > max) max = input; if ( input < min) min = input; sum = sum + input; } while( input != 0); mean = sum / counter; textio.putf( numbers entered:%d\n counter); textio.putf( minimum:%f\n min); textio.putf( maximum:%f\n max); textio.putf( mean:%f mean); } } </code></pre>,java | |
| default parseint radix to 10 one of the bad parts of javascript is that if you use parseint with something that begins with 0 then it could see the number as a octal. <pre><code>i = parseint(014); // answer: 12 </code></pre> q: how can i redefine parseint so that it defaults to radix 10 i m assuming you would use the prototype method. edit: maybe i should do this: <pre><code>$.fn.extend({ parseint:function(x) { return parseint(x 10); } }); </code></pre>,javascript | |
| assigning image views to background image of button i am trying to combine two image views and put them into another image view which i am assigning to background image of a button.somehow this is not working.could someone please check and let me know what exactly is wrong here. <pre><code> uiimageview * image1 = [[uiimageview alloc] initwithimage:[uiimage imagenamed:@ homesmall.png ]]; uiimageview * image2 = [[uiimageview alloc] initwithimage:[uiimage imagenamed:@ update.png ]]; [image1 setframe:cgrectmake(16 0 16 16)]; [image2 setframe:cgrectmake(0 0 16 16)]; uiimageview *cellacc = [[uiimageview alloc] initwithframe:cgrectmake(0 0 32 16)]; [cellacc addsubview:image1]; [cellacc addsubview:image2]; uiimage *image = [cellacc image]; uibutton *button = [uibutton buttonwithtype:uibuttontypecustom]; cgrect frame = cgrectmake(0.0 0.0 image.size.width image.size.height); button.frame = frame; [button setbackgroundimage:image forstate:uicontrolstatenormal]; </code></pre>,iphone | |
| how to write values in a properties file through java code i have an issue. i have a properties file. i want to store some values in that file and will implement in the code whenever it is required. is there any way to do that i am using <code>properties</code> class to do that..,java | |
| convert image obtained from url into inputstream. then read that inputstream to convert it into image & display on my jsp <pre><code>package imagebyte; import java.awt.image.bufferedimage; import java.io.bytearrayoutputstream; import java.io.ioexception; import java.io.inputstream; import java.net.malformedurlexception; import java.net.url; import java.net.urlconnection; import java.util.iterator; import javax.imageio.imageio; import javax.imageio.imagereader; import javax.imageio.stream.imageinputstream; public class imagebyte { // private static final logger log = logger.getlogger(imagebyte.class); public static void main(string args[]) throws malformedurlexception ioexception { getimageandtypefrominputstream(); } public static byte[] getimageandtypefrominputstream() throws malformedurlexception ioexception { string format = null; bufferedimage bufferedimage = null; inputstream input = null; urlconnection openconnection = new url( http://www.thumbprintbooks.ca/wp-content/uploads/vignettes-photos-spine-inset-in-plinth-thumbnail-c-thumbprint-books.jpg ).openconnection(); openconnection.addrequestproperty( user-agent mozilla/5.0 (windows nt 6.3; win64; x64) applewebkit/537.36 (khtml like gecko) chrome/61.0.3163.100 safari/537.36 ); input = openconnection.getinputstream(); system.out.println( input : + input.tostring()); system.out.println( input : + input.getclass()); system.out.println( input : + input.available()); imageinputstream iis = imageio.createimageinputstream(input); system.out.println( iis : + iis.tostring()); system.out.println( iis : + iis.getclass()); system.out.println( iis : + iis.readboolean()); system.out.println( iis : + iis.length()); iterator<imagereader> readers = imageio.getimagereaders(iis); system.out.println( readers : + readers.tostring()); system.out.println( readers : + readers.getclass()); if (readers.hasnext()) { system.out.println( if block ); imagereader reader = readers.next(); format = reader.getformatname(); reader.setinput(iis); bufferedimage = reader.read(0); new bufferedimagewrapper(format bufferedimage); final bytearrayoutputstream bytearrayoutputstream = new bytearrayoutputstream(); imageio.write(bufferedimage jpg bytearrayoutputstream); return bytearrayoutputstream.tobytearray(); } else { system.out.println( else block ); string text = oops !!! ; byte convertentry[] = text.getbytes(); return convertentry; } } public static class bufferedimagewrapper { private final string imagetype; private final bufferedimage bufferedimage; public bufferedimagewrapper(string imagetype bufferedimage bufferedimage) { system.out.println( in buffered image wrapper ); this.imagetype = imagetype; this.bufferedimage = bufferedimage; } public string getimagetype() { return imagetype; } public bufferedimage getbufferedimage() { return bufferedimage; } } } </code></pre> output : input : sun.net.www.protocol.http.httpurlconnection$httpinputstream@3e3abc88 input : class sun.net.www.protocol.http.httpurlconnection$httpinputstream input : 14195 iis : javax.imageio.stream.filecacheimageinputstream@300ffa5d iis : class javax.imageio.stream.filecacheimageinputstream iis : true iis : -1 readers : javax.imageio.imageio$imagereaderiterator@433c675d readers : class javax.imageio.imageio$imagereaderiterator else block,java | |
| shortening a python program i have 22 fits files that have the same field/column names. i load them using pyfits like for example: <pre><code>hdulist1 = pyfits.open( /home/ssridhar/mock_test_files/roncarelli_test/roncarelli_dist_halo1.fits ) hdulist2 = pyfits.open( /home/ssridhar/mock_test_files/roncarelli_test/roncarelli_dist_halo2.fits ) </code></pre> then i load the table data for the 22 files likewise <pre><code>tbdata1 = hdulist1[1].data tbdata2 = hdulist2[1].data </code></pre> since all the field names are the same i say <pre><code>fields = [ ra dec zcosmo r200 m200 is_central r ] </code></pre> and assign variables from 1 to 22 (var1 var2 etc) to the fields like: <pre><code>var1 = dict((f tbdata1.field(f)) for f in fields) var2 = dict((f tbdata2.field(f)) for f in fields) </code></pre> now i use np.histogram to find some values for the 22 files likewise: <pre><code>n_1 r_hist_1 = np.histogram(var1[ r ] bins=20 range=none normed=false weights=none) n_2 r_hist_2 = np.histogram(var2[ r ] bins=20 range=none normed=false weights=none) </code></pre> now i find out using the formula the value for variables i name sigma_num_1 sigma_num_2 for the different files likewise: <pre><code>dist_1 = r_hist_1[1] area_1 = [math.pi*(r**2-r**2) for r r in zip(dist_1[1:] dist_1)] sigma_num_1 = n_1/area_1 </code></pre> the code is working fine and gives me the results for sigma_num_1 sigma_num_2 etc.. <strong>i don t want to write the above three lines for each of the 22 files to find say sigma_num_3 to sigma_num_22. is there a way to do it. after finding all the 22 values of sigma i need to find the mean of all these 22 values.</strong>,python | |
| why am i getting this warning about my app delegate and cllocationmanagedelegate observe this perfectly simple uiviewcontroller subclass method: <pre><code>-(ibaction)launchsearch { offerssearchcontroller *search = [[offerssearchcontroller alloc] initwithnibname:@ offerssearchview bundle:nil]; everwondrappdelegate *del = [uiapplication sharedapplication].delegate; [del.navigationcontroller pushviewcontroller:search animated:yes]; [search release]; } </code></pre> on the line where i get *del i am getting a compiler warning that reads <code>type id <uiapplicationdelegate> does not conform to the cllocationmanagerdelegate protocol</code>. in fact my app delegate does conform to that protocol and what i m doing here has nothing at all to do with that. so what s up with that message secondary question: sometimes i can get to my navigationcontroller via <code>self.navigationcontroller</code> and sometimes i can t and have to go to my app delegate s property to get it like i m doing here. any hint about why that is would be very useful.,iphone | |
| string concatentation i have the following code and the return is confusing me. i am new to java and not exactly sure why it is returning the way it is. any help would be great. when the data has <code>pe846</code> and <code>a846</code> it returns <code>engine</code> <code>ambo</code> and <code>engineambo</code>. i m looking to return only <code>engineambo</code>. <pre><code> string soundstring = ; if (data.contains( pe846 )) { soundstring += engine ; betastring = engine : ; sign = engine; } if (data.contains( a846 )) { soundstring += ambo ; betastring += ambo : ; sign = ambo; } if (data.contains( md846 )) { soundstring += medic ; betastring += medic ; sign = medic; } log.info(betastring + alerted ); { new audioplayer( sounds/ + soundstring + .wav ).start(); log.info(soundstring); } </code></pre>,java | |
| split string in java with potential split characters used in string parts <strong>how would you split this string format into parts:</strong> <pre><code>message_type={any_text}&message_number={digits}&code={digits}&id={digits}&message={any_text}&timestamp={digits_with_decimal} </code></pre> where in the <code>message={any_text}</code> part the <em>{any_text}</em> may contain a <code>&</code> and a <code>=</code> thus not being able to do string split by <code>&</code> or <code>=</code> and the order of the message parts may be scrambled or not in this order. i am thinking that a pattern can be extracted for a solution <code>={the_text_needed}&</code> however this would not apply for the last part of the string as there will be no <code>&</code> at the end.,java | |
| unexpected result when checking network reachability in my app i implemented the code for network reachability. this is my code. <pre><code>-(void)viewdidload { // test for internet. gotinternet = [self checkinternet]; if (gotinternet == no) { // no internet. uialertview *alert = [[uialertview alloc]initwithtitle:@ connection error message:@ the internet is down delegate:self cancelbuttontitle:@ ok otherbuttontitles:nil nil]; [alert show]; [alert release]; } else { nslog(@ i do have internet ); } } -(bool)checkinternet { //test for internet connection nslog(@ ——– ); nslog(@ testing internet connectivity ); reachability *r = [reachability reachabilitywithhostname:@ https://mobile.areafinancial.com/cutechservice/cutechwebservice.asmx ]; networkstatus internetstatus = [r currentreachabilitystatus]; bool internet; if ((internetstatus != reachableviawifi) && (internetstatus != reachableviawwan)) { internet = no; } else { internet = yes; } return internet; } </code></pre> this code returns me gotinternet = no; actually wifi is enabled. what am i doing wrong thank you in advance.,iphone | |
| how to print specified in java---> i want to print the below pattern <pre><code> v v v v v </code></pre> below is the code which i have tried. <pre><code>public static void main(string[] args) { final int numrows = 4; for (int row = 0; row < numrows; row++) { for (int prespace = numrows - row; prespace >= 0; prespace--) { system.out.print( ); } if (row > 0) { system.out.print( v ); for (int postspace = 1; postspace < row * 2; postspace++) { system.out.print( ); } } } system.out.println( v ); } </code></pre> i m getting the below output: <pre><code> v v v v v </code></pre> can anyone help me to solve this pattern,java | |
| accessing a self-executing function how can i access the function alert from within it s enclosing function <blockquote> (function() { function alert(){ console.log( alert ); } })(); </blockquote> e.g this does not work ofc - <blockquote> (function() { function alert(){ console.log( alert ); } })(); alert(); </blockquote>,javascript | |
| how to add text in multiple lines in message field of uialertview <pre><code> the alertview should look like this. alertview message: please provide one of the following parameters to find the doctors. speciality location insurance </code></pre>,iphone | |
| how to solve bootstrap error couldn t register com.yourcompany.accessgalary with the bootstrap server. error: unknown error code. this generally means that another instance of this process was already running or is hung in the debugger.,iphone | |
| preventdefault() not working <pre><code>//prevent default handler function click_handler(event){ if(event.shiftkey){ event.preventdefault(); } } //event listener var file_mgmt=document.queryselector( div.filemanager ); if(window.addeventlistener){ file_mgmt.addeventlistener( click click_handler false); }else if(window.attachevent){ file_mgmt.attachevent( onclick click_handler); }else{ file_mgmt.onclick=click_handler; } </code></pre> basically file_mgmt is a div container which is enclosed with tag linking to another links. since shift+click opens the link in new _blank tab i want to prevent it since it will damage the original page layout. giving up after a while i even tried following from mozilla doc:<a href= https://developer.mozilla.org/en-us/docs/web/api/event/preventdefault rel= nofollow >event.preventdefault()</a> the result being the same. any suggestions,javascript | |
| how to convert a stringbuilder of integers into an array of ints so for an assignment i had to write a method that would take two arrays and interleave them. i chose to convert those arrays to strings take substrings of each string and add them to a stringbuilder. now i should have a stringbuilder full of integers from both arrays but the method the teacher wants us to create must return an array of ints. how can i convert this stringbuilder to an array of ints here s my code so far: <pre><code>public static int[] interleavearrays(int[] array1 int[] array2 int stride int maxelements){ if (stride <= 0){ return null; } if (maxelements <= 0){ return null; } string arraya = array1.tostring(); string arrayb = array2.tostring(); stringbuilder sb = new stringbuilder(array1.length + array2.length); boolean done = false; boolean end = false; int i = 0; int j = 0; while (done = false){//create a substring of the first array & append to stringbuilder string newarray1 = arraya.substring(i i + (stride - 1)); sb.append(newarray1); if (i > arraya.length()){ done = true; } while (end = false){//create a substring of the second array & append to stringbuilder string newarray2 = arrayb.substring(j (j + stride - 1)); sb.append(newarray2); if (j > arrayb.length()){ end = true; } } if (sb.length() >= maxelements){ done = true; } } } </code></pre> (side note: <strong>stride</strong> is the amount of integers that should be taken at a time from each array. [e.g. if you have a stride of 2 and the arrays <strong>{1 3 7 2}</strong> and <em>{5 2 9 6}</em> the array returned should be {<strong>1 3 </strong> <em>5 2 </em> <strong>7 2 </strong> <em>9 6</em>}] <strong>maxelements</strong> is the maximum number of integers allowed in the returned array),java | |
| why does this javascript statement begin with a ; it s looks extraneous but it must do something. ref: <a href= https://github.com/quirkey/sammy/blob/master/examples/hello_world/index.html rel= nofollow >https://github.com/quirkey/sammy/blob/master/examples/hello_world/index.html</a> <pre><code><script type= text/javascript charset= utf-8 > ;(function($) { //snip }); $(function() { //snip }); })(jquery); </script> </code></pre>,javascript | |
| how to login/signup to a webserver from iphone applicaton i wan the following functionality in my iphone application <ol> <li> user register/signup form my application to the website(mysql/php) </li> <li> user login to the site from application. </li> <li> user write comment on pictures from application. please help me out. </li> </ol>,iphone | |
| how to use variable that declared in classname.m to that particular classnameviewcontroller.m hi i am new to iphone development. what i did is i am creating a class named imagepicker.h along with imagepicker.m for that classes i am creating imagepickerviewcontroller.h and imagepickerviewcontroller.m.... in the imagepicker.m i am declring a button for that button assing a image tag value. now what i need is how to get that buttion.tag value to imagepickerviewcontroller.m please help me thanku,iphone | |
| "variable result might not have been initialized <div class= snippet data-lang= js data-hide= false > | |
| <div class= snippet-code > | |
| <pre class= snippet-code-js lang-js prettyprint-override ><code>public class monthname { | |
| public static string month_name(int month) { | |
| string result; | |
| if (month == 1) { | |
| result = january ; | |
| } else if (month == 2) { | |
| result = february ; | |
| } else if (month == 3) { | |
| result = february ; | |
| } else if (month == 4) { | |
| result = february ; | |
| } else if (month == 5) { | |
| result = february ; | |
| } else if (month == 6) { | |
| result = february ; | |
| } else if (month == 7) { | |
| result = february ; | |
| } else if (month == 8) { | |
| result = february ; | |
| } else if (month == 9) { | |
| result = february ; | |
| } else if (month == 10) { | |
| result = february ; | |
| } else if (month == 11) { | |
| result = february ; | |
| } else if (month == 12) { | |
| result = february ; | |
| } | |
| return result; | |
| } | |
| public static void main(string[] args) { | |
| system.out.println( month 1: + month_name(1)); | |
| system.out.println( month 2: + month_name(2)); | |
| system.out.println( month 3: + month_name(3)); | |
| system.out.println( month 4: + month_name(4)); | |
| system.out.println( month 5: + month_name(5)); | |
| system.out.println( month 6: + month_name(6)); | |
| system.out.println( month 7: + month_name(7)); | |
| system.out.println( month 8: + month_name(8)); | |
| system.out.println( month 9: + month_name(9)); | |
| system.out.println( month 10: + month_name(10)); | |
| system.out.println( month 11: + month_name(11)); | |
| system.out.println( month 12: + month_name(12)); | |
| system.out.println( month 43: + month_name(43)); | |
| } | |
| }</code></pre> | |
| </div> | |
| </div> | |
| so i have declared the relevant string s value into the result but it still says my variable result might not have been initialized. i m trying to achieve the output similar to <a href= http://programmingbydoing.com/a/month-name.html rel= nofollow >this</a>. any one could help me on this thank you!",java | |
| how to implement fmdatabase in my iphone application i want some tutorials or some help from that i can get idea of applying fmdatabase to my app.,iphone | |
| how to attach m4v video in email with mfmailcomposer in iphone i am using this code but it is not sending mail with video here is my code : <pre><code>mfmailcomposeviewcontroller* controller = [[mfmailcomposeviewcontroller alloc] init]; controller.mailcomposedelegate = self; [controller setsubject:@ my subject ]; [controller setmessagebody:@ ishtml:no]; if (controller) [self presentmodalviewcontroller:controller animated:yes]; [controller release]; nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory nsuserdomainmask yes); nsstring *documentsdirectory = [paths objectatindex:0]; nsstring *datapath = [documentsdirectory stringbyappendingpathcomponent:titlestring]; nslog(@ datapath=%@ datapath); nsurl *url=[[nsurl alloc] initfileurlwithpath:datapath]; nslog(@ url..%@ url); nsdata *data=[[nsdata alloc]initwithcontentsofurl:url ]; [controller addattachmentdata:data mimetype:@ video/quicktime filename:titlestring]; </code></pre> plzz help me,iphone | |
| iphone: loading data with a progress animation i m creating an iphone app and am wondering how to have a progress animation when you re loading data i see this a lot in applications such as tweetie but haven t been able to figure it out myself.,iphone | |
| javascript doesn t return value i have some simple code that returns whether i m scrolling up or down. i want to use it as a function with <code>return</code> like this: <pre><code>var scripts = { getscrolldirection: function() { var dir; $(document).on( mousewheel dommousescroll function(e) { if(e.originalevent.wheeldelta / 120 > 0) { dir = up ; } else { dir = down ; } }); return dir; } } </code></pre> when i call <code>scripts.getscrolldirection</code> i get undefined. what i am doing wrong,javascript | |
| status bar while downloading i have a simple java project which has the option to download a .zip file from internet. the download takes around 1-2 minutes - 100mb. is there any whay to show in outpute the progess of the downloading - for example percent completed or how many mb left to be downloaded.,java | |
| it is possible to store multiple data in arrays is it possible for the array i have created to hold multiple data for example when a user adds a game i want to display the total score for multiple games however with the below code my array only contains the last input data. <pre><code>import java.util.scanner; public class assingment2 { public static void main (string[] args) { string text; string gamename; int scores; int timeplayed; int i = 0; int total = 0; scanner sc = new scanner(system.in); system.out.println( please enter your name ); text = sc.nextline(); system.out.println( please enter your game achivements (game name:score:time played) e.g. minecraft:14:2332 ); while (i < 100){ text = sc.nextline(); if (text.isempty()){ system.out.println( nothing was entered. please try again ); break; } if(text.equals( quit )){ break; } system.out.println (text); i++; string [] splittext = text.split( : ); if (splittext.length !=3){ system.out.println( error please try again ); break; } gamename=splittext[0]; scores=integer.parseint(splittext[1]); timeplayed=integer.parseint(splittext[2]); system.out.println( game: +splittext[0]+ score= +splittext[1]+ time played= +splittext[2]); } } } </code></pre>,java | |
| settimeout with standard counter i want to create a alert hello which will show up after 10sec. i used settimeout and it working fine. now i would like to do counter(timer) which will show 10 9 8 7 ... and then alert hello. <pre><code>function counter(){ settimeout(function(){alert( hello )} 10000); } </code></pre> any ideas don t want any css for that. just a standard text counter. is there something like that,javascript | |
| tableview row become empty i have a tableview with subclassed tableviewcells. whenever the cell is tapped it will show a small article. but when this article is viewed and i scroll the tableview the cell will be empty and the text is at the bottom of my tableview. i don t know how to fix it. can someone help me out on this thanks in advance,iphone | |
| is it possible to get notification for development certificate build in server side using production certificate just i wanted to know is it possible to get apple push notification service in developer certificate build in server side they are using .p12 and .pem files are production server certificates and server side targeting to apple main apns server so in client side i need to test the notification service in my device. please suggest me is it possible or how can i test the notification service.,iphone | |
| python. override a method without creating a derived class and call the original method i have a function like: <pre><code>modulea.py class fooclass: def foomethod(self): self.dosomething() </code></pre> now i want to override that method but without deriving from that class and call the overridden method from inside: <pre><code>moduleb.py from modulea import fooclass def _newfoomethod(self): if(not hasattr(self vara ): self.vara = 0 #do some checks with vara #call original foomethod fooclass.foomethod = _newfoomethod </code></pre> things to know: <ul> <li> i don t have access to the fooclass. </li> <li> i don t have access to the instances of fooclass since they are many and not in a single place. </li> <li>as you can see what i really want is to decorate the foomethod.</li> <li>i also want to create a variable like vara to use it in the _newfoomethod. i do that by first checking if it is already created and creating it if not but i don t know if it is the best way to do it...</li> </ul>,python | |
| dynamic graphics rendering on the iphone what i want to achieve is some way of supplying dynamically generated visual content that the user of a device could interact with - touch icons text links images etc embedded within some graphic image generated either on the phone or on a server. i would need pinch zoom rotate functionality aswell. is it possible to render graphics dynamically within the iphone s ui so for example would it be feasible to supply an xml file to a device and have that render a custom map within the device would you have all the pinch-zoom rotate and click on icons type functionality of a normal ui alternatively could i pre-render a png on a server and supply that to the device any ideas or suggestions are appreciated.,iphone | |
| how do i redirect users after submit button click how do i redirect users after submit button click my javascript isn t working: <strong>javascript</strong> <pre><code><script type= text/javascript language= javascript > function redirect() { window.location.href= login.php ; } </script> </code></pre> <strong>form page</strong> <pre><code><form name= form1 id= form1 method= post > <input type= submit class= button4 name= order id= order value= place order onclick= redirect(); > </form> </code></pre>,javascript | |
| what is a simple fuzzy string matching algorithm in python i m trying to find some sort of a good fuzzy string matching algorithm. direct matching doesn t work for me — this isn t too good because unless my strings are a 100% similar the match fails. the <a href= http://en.wikipedia.org/wiki/levenshtein_distance rel= noreferrer >levenshtein</a> method doesn t work too well for strings as it works on a character level. i was looking for something along the lines of word level matching e.g. <blockquote> string a: the quick brown fox. string b: the quick brown fox jumped over the lazy dog. these should match as all words in string a are in string b. </blockquote> now this is an oversimplified example but would anyone know a good fuzzy string matching algorithm that works on a word level.,python | |
| add target blank to links if it has http or https i am trying to find in a text all links that have http or https and add target blank to them it they exist with this code: <pre><code> const text = this.node.body; const regex = /https :\/\//i; let newstr = text.replace(regex $& target= _blank ); return newstr; </code></pre> but it doesn t work the links that have http or https are not getting target blank. what is the correct way of doing this this is the example text: <pre><code><p><a href= www.link.com >link</a></p><p><div><img src= http://image.jpg /></div></p><p><a href= http://link.html >link</a></p> </code></pre> and this is the result of the code: <pre><code><p><a href= www.link.com >link</a></p><p><div><img src= http:// target= _blank /image.jpg /></div></p><p><a href= http://link.html >link</a></p> </code></pre>,javascript | |
| extract date and month from a date object my aim to extract date and month from a date object. i cannot use getdate() and getmonth() as they are deprecated. i used the calendar api however i am not able to get the desired result. would you please suggest... my aim is to extract the month and date as integers. <pre><code> scanner input = new scanner(system.in); string a; simpledateformat formatter = new simpledateformat( dd/mm/yyyy ); system.out.println( please type in your name... ); a = input.nextline(); system.out.println( you entered the name + a); //to print the current date date dob; date presentdate = new date(); system.out.println( today is + presentdate); //to get a birthdate system.out.println( enter yout dob in dd/mm/yyyy ); string b1 = input.nextline(); dob = formatter.parse(b1); system.out.println( your date of birth is + dob); calendar cal = calendar.getinstance(); ; cal.settime(dob); system.out.println(cal); int month = cal.get(calendar.month); int date1 = cal.get(calendar.date); system.out.println(month); system.out.println(date1); </code></pre>,java | |
| iphone: device debugging using xcode 4 if this is a repeated question please forgive me! i don t know how to debug directly to the iphone 4 device using xcode of my project. please share and help me on providing the steps or official tutorial link to do this. thanks.,iphone | |
| function in java outputs different results when called multiple times i have a function called <code>tournamenttreekselection</code> which finds the k-th largest element in an array. the function takes three parameters the array the same array again and the value of k. the purpose of sending two copies of the array is so that during recursive calls i can modify one copy of the array and still keep the original array i sent in during that call. here is the code: <pre><code>import java.util.arraylist; import java.util.arrays; public class tournamenttree { public static int max(int a int b) { return a > b a : b; } public static int[] toarray(arraylist<integer> list) { int[] arr = new int[list.size()]; for(int i = 0; i < arr.length; ++i) arr[i] = list.get(i); return arr; } public static arraylist<integer> tolist(int[] arr) { arraylist<integer> list = new arraylist<>(); for(int i : arr) list.add(i); return list; } public static int tournamentkselection(int[] data int[] data_copy int k) { arraylist<integer> winners = new arraylist<>(); for(int i = 0; i < data.length; i += 2) { winners.add(max(data[i] data[i + 1])); } if(k > 1 && winners.size() == 1) { for(int i = 0; i < data_copy.length; i++) if(data_copy[i] == winners.get(0)) data_copy[i] = -1; return tournamentkselection(data_copy data_copy --k); } if(winners.size() % 2 == 1 && winners.size() != 1) winners.add(-1); if(winners.size() == 1) return winners.get(0); return tournamentkselection(toarray(winners) data_copy k); } } </code></pre> now i am going to test it : <pre><code>import java.util.arrays; public class test { public static void main(string[] args) { int[] arr = {9 10 8 7 6 500 4 3 2 1}; system.out.println(tournamenttree.tournamentkselection(arr arr 1)); system.out.println(tournamenttree.tournamentkselection(arr arr 2)); system.out.println(tournamenttree.tournamentkselection(arr arr 3)); } } </code></pre> this produces the following results: <pre><code>500 // ok this is the first largest number 10 // ok this is the second largest number 8 // this is the fourth largest number not the third </code></pre> now let me make the call to <code>system.out.println(tournamenttree.tournamentkselection(arr arr 3));</code> alone without the call to k = 1 and k = 2 <pre><code>import java.util.arrays; public class test { public static void main(string[] args) { int[] arr = {9 10 8 7 6 500 4 3 2 1}; system.out.println(tournamenttree.tournamentkselection(arr arr 3)); } } </code></pre> now this produces the correct result which is 9. what s going on individually the result is correct but when i make previous calls to the same function first the subsequent results are wrong. the only explanation i can think of at the moment is that something in my tournamenttree class is static that shouldn t be. any insight,java | |
| python - attributeerror: function object has no attribute deepcopy i have a list of mutable objects which is an attribute of a class. <pre><code>self.matricecaracteristiques </code></pre> i would like to keep a copy of it so that the objects will change during execution as for the original list but not their order in the list itself (that is what i want to preserve and restore after execution). <pre><code>copy_of_matcar = self.matricecaracteristiques[:] #to preserve the order of the objects #that will be changed during execution </code></pre> when it s time to restore the list i ve tried making this: <pre><code>self.matricecaracteristiques = copy_of_matcar[:] </code></pre> but it doesn t work cause although the <code>copy_of_matcar</code> has a different order (specifically the one that the attribute had before some code execution) the other <code>self.matricecaracteristiques</code> remains exactly the same although the instruction. so i have thought to make a deepcopy of it by following the python reference: <pre><code>import copy self.matricecaracteristiques = copy.deepcopy(copy_of_matcar) </code></pre> however what i get is the following error: <pre><code> self.matricecaracteristiques = copy.deepcopy(copy_of_matcar) attributeerror: function object has no attribute deepcopy </code></pre> any idea how i can fix this problem and get a deepcopy of the list <code>copy_of_matcar</code> to be assigned to the <code>self.matricecaracteristiques</code> one,python | |
| how to pass a looping variable into a regex <pre><code>var sourcearray = un un un deux deux ; var termarray = [ un deux ]; var found = 0; for (var i =0; i < termarray.length; i++) { found = sourcearray.match(/termarray[i]/g); document.write(found.length); } </code></pre> in the above code i try to have termarray[i] render corresponding string value from termarray. however this codes doesn t work. how to format termarray[i] in the match parenthesis so it s replaced by string value while looping also where should i put the [i] in the document.write line to have it loop correctly. please try not to change the code too much even if it s not optimum .,javascript | |
| edit a boolean value on click on a button at customised table view cell i have a table view with customized cell. each cell contains a button that is added a contentview addsubview. now i want to update a boolean value in database table regarding to row of which button is clicked. how should i get the index of the row whose button is clicked as when you click on the button it does not select the row on which the button exist .,iphone | |
| enhanced messageformat i ve been using <code>messageformat.format()</code> for a while but there s one thing that i find annoying. everytime you declare a parameter in a message you have to know the position of the mapped argument. e.g. <pre><code>messageformat.format( {0} is annoying {1}. this indeed ) </code></pre> is there a class that is the same as <code>messageformat</code> in every other way but lets you omit the argument position in parameter declaration altogether and have it default to its position in the message so that the first parameter maps to the first argument the second parameter to the second argument and so on e.g. <pre><code>messageformat.format( {} is much better{}. this indeed ) </code></pre> i think later versions of log4j have a similar feature but i just need the formatting class. happy new year! <strong>edit</strong>: i need this feature for assertion so it s really for internal use but i appreciate your insight into why messageformat works the way it does.,java | |
| object of type super class not able to access method of sub class <pre><code> class a extends b { public static void main(string[] args) { b obj = new a(); obj.speak(); //error :the method speak() undefined for type b } public void speak() { system.out.println( in speak ); } } class b { } </code></pre> i am a beginner in java and i am not able to understand what does this line <code>b obj = new a();</code> mean. why can t a access its own method. please explain in detail if class a is instantiating then why its methods are not accessible.,java | |
| missing word for sphinx recognizing i am trying to add words for french in the cmudict.0 file. i have added three words but now i get the following error. <pre><code> loading... 07:03.838 warning dictionary missing word: quatre in edu.cmu.sphinx.linguist.dictionary.fastdictionary:getword-dictionary 07:03.839 warning jsgfgrammar can t find pronunciation for quatre in edu.cmu.sphinx.linguist.language.grammar.grammar:creategrammarnode-jsgfgrammar </code></pre> you will see three words i have added perfectly fine and they work but when adding quatre i get the above error. here is the image of the cmudict.0 file <a href= https://i.stack.imgur.com/ry46x.png rel= nofollow noreferrer ><img src= https://i.stack.imgur.com/ry46x.png alt= enter image description here ></a> any help is extremely appreciated.,java | |
| java htmlunit cookies and apache cookies - compatible i need to make the cookies from <code>org.apache.http.cookie.cookie</code> compatible with cookies from <code>com.gargoylesoftware.htmlunit.util.cookie</code>. can you use those 2 cookies interchangeably if not how can i store both of those types of cookies within the same container,java | |
| reading mails from folder in yahoo by javamail hi i am having problem with reading mails from manually created folder. i can read mails from inbox. but when i try to read mail from other than inbox it is giving error. i hope stackoverflow will give solution. thanks in advance... <em><strong>error message:</em></strong> <strong>exception in thread main javax.mail.foldernotfoundexception: folder is not inbox at com.sun.mail.pop3.pop3folder.open(pop3folder.java:183) at mailpop3.main(mailpop3.java:24)</strong> <em><strong>my code:</em></strong> <pre><code>properties properties = system.getproperties(); session session = session.getdefaultinstance(properties); store store = session.getstore( pop3 ); store.connect(host user password); folder inbox = store.getfolder( mypersonalfolder ); inbox.open(folder.read_only); // search for all unseen messages flags seen = new flags(flags.flag.seen); flagterm unseenflagterm = new flagterm(seen false); message messages[] = inbox.search(unseenflagterm); </code></pre>,java | |
| accesses an object that should exist from another class i am creating a program that simulates the distribution of a product. the user enters a quantity and that quantity is then randomly divided among x number of distribution sites. the structure of the program is a main that excepts the original quantity then sends that quantity to the cpo (central processing office) class. the cpo has a method where it instantiates the required number of distribution sites and another method that determines the value given to each site. my problem is that i would like the main or a menu class to display the values of the distribution sites but since they are instantiated within another class the main does not see them. hence a command like system.out.println(d1); main file: <pre><code>public static void main(string[] args) { // todo code application logic here //---------------------------------------------------------------------- // welcome prompt requests initial quanity of products to be ordered //---------------------------------------------------------------------- system.out.println( \twelcome to cpo distribution + \n\t order placement menu \n\n ); for (int i = 0; i < 55; i++){ system.out.print( = ); } system.out.println( \nplease enter the quantity of products to be distributed ); system.out.print( product quantity: ); //---------------------------------------------------------------------- // creates order int to hold the value of the products entered //---------------------------------------------------------------------- order = input.nextint(); while (order < 1){ system.out.println( please enter a value greater than 0 ); order = input.nextint(); } for (int i = 0; i < 55; i++){ system.out.print( = ); } cpo cpo = new cpo(order); cpo.dcreation(); system.out.println(cpo); system.out.println(d1); system.out.println(d2); } </code></pre> cpo class: <pre><code>public class cpo { private static int origin quantity site distributionsites = 3; private static int d1total d2total d3total; private static securerandom rand = new securerandom(); public cpo(int origin) { this.origin = origin; quantity = origin; site = distributionsites; } //---------------------------------------------------------------------------- // get r and set r for order received from cpo //---------------------------------------------------------------------------- public int getorigin() { return this.origin; } public void setorigin(int origin) { this.origin = origin; } //---------------------------------------------------------------------------- // instantiating distributors //---------------------------------------------------------------------------- public static void dcreation() { getdamount(); distributor d1 = new distributor( d1 d1total); getdamount(); distributor d2 = new distributor( d2 d2total); getdamount(); distributor d3 = new distributor( d3 d3total); } //---------------------------------------------------------------------------- // method for distributing order to distributors //---------------------------------------------------------------------------- public static int getdamount(){ site = site - 1; int remainder = 0; if ( site == distributionsites ){ remainder = rand.nextint(quantity); quantity = quantity - remainder; } else if ( site == distributionsites - 1){ remainder = rand.nextint(quantity); quantity = quantity - remainder; } else if (site < 1){ remainder = quantity; quantity = quantity - remainder; } return remainder; } public string tostring() { return \n the cpo has dispersed an order of + origin + products among + distributionsites + distribution sites. \n there are + quantity + left. + sites are + site; } } </code></pre>,java | |
| anyone know why i can’t use kaudioformatflagisfloat instead of kaudioformatflagissignedinteger for an audiostreambasicdescription why does this work <pre><code>- (void)setupaudioformat:(audiostreambasicdescription*)format { format->msamplerate = 44100; format->mformatid = kaudioformatlinearpcm; format->mframesperpacket = 1; format->mchannelsperframe = 1; format->mbytesperframe = 2; format->mbytesperpacket = 2; format->mbitsperchannel = 32; format->mreserved = 0; format->mformatflags = klinearpcmformatflagisbigendian | klinearpcmformatflagissignedinteger | klinearpcmformatflagispacked; } </code></pre> but when i change the mformatflag it doesn t and i get a kaudiofileunsupporteddataformaterror. <pre><code>format->mformatflags = kaudioformatflagisfloat | klinearpcmformatflagisbigendian | kaudioformatflagispacked; </code></pre> i am recieving the error when calling... <pre><code>osstatus status = audioqueuenewinput(&recordstate.dataformat audioinputcallback self cfrunloopgetcurrent() kcfrunloopcommonmodes 0 &recordstate.queue); </code></pre> i am sure the problem lies in the format flags as the error only happens when i try to use the float flag any ideas how to get around it many thanks.,iphone | |
| i want to know the charge s percentage when the application is charging the device use a few seconds for that... how can i know which is this charge s % thank you!,iphone | |
| combine python dictionaries that have the same key name i have two seperate python list that have common key names in their respective dictionary. the second list called <code>recordlist</code>has multiple dictionaries with the same key name that i want to append the first list <code>clientlist</code>. here are examples lists: <pre><code>clientlist = [{ client1 : [ c1 f1 ]} { client2 : [ c2 f2 ]}] recordlist = [{ client1 : { rec_1 :[ t1 s1 ]}} { client1 : { rec_2 :[ t2 s2 ]}}] </code></pre> so the end result would be something like this so the records are now in a new list of multiple dictionaries within the <code>clientlist</code>. <pre><code> clientlist = [{ client1 : [[ c1 f1 ] [{ rec_1 :[ t1 s1 ]} { rec_2 :[ t2 s2 ]}]]} { client2 : [[ c2 f2 ]]}] </code></pre> seems simple enough but i m struggling to find a way to iterate both of these dictionaries using variables to find where they match.,python | |
| confused with format( ) in python doc i m not sure about python doc: <a href= http://docs.python.org/py3k/library/functions.html#format rel= nofollow ><strong>format(value[ format_spec])</strong></a> <pre><code>a call to format(value format_spec) is translated to type(value).__format__(format_spec) which bypasses the instance dictionary when searching for the value’s __format__() method. </code></pre> is it a typo i think it should be translated to: <pre><code>type(value).__format__(value format_spec) </code></pre>,python | |
| passing array of string from one class to another i m trying to pass a string array from one class to another in my java code. by using code such as <pre><code>class instanceofclass = new class(); string text1 = instanceofclass.variablename; </code></pre> and then displaying it out on screen worked fine! however i m trying to get the array of a string. so in my first class i have <pre><code>jbutton [] filmtime = new jbutton[5]; jbutton [] filmnames = new jbutton[8]; string [] films = new string [8]; dbconnector database = new dbconnector(); for (int i =0; i <= 7; i++) { films[i] = database.filmtitle[i]; } for (int i =0; i<= 7; i++) { filmnames[i] = new jbutton (films[i] + ( +age+ ) ); filmnames[i].setpreferredsize(new dimension(563 50)); grid.add(filmnames[i]); } </code></pre> i know i can use one for loop but i was just checking issues at the momment. in my second class used named dbconnector i have: <pre><code>public string filmtitle []; for (int i =0; i<=7; i++) { string query = select * from films where id = + i; rs = st.executequery(query); while (rs.next()) { filmtitle[i] = rs.getstring( filmname ); } } </code></pre> eclipse gives the error as: <pre><code>error is: java.lang.nullpointerexception java.lang.nullpointerexception at main.init(main.java:46) at sun.applet.appletpanel.run(unknown source) at java.lang.thread.run(unknown source) </code></pre> line 46 is the statement in the first for loop... testingme[i] = instanceofclass.variablename[i];,java | |
| how to save application exceptions or crashes for posting to server-iphone hii people : i have to send the exceptions or crash logs to server when the application has any crash or issues the exception may be (blob of data / long string / human readable) any idea on how to get exception logs when application crashes or when encountering with errors,iphone | |
| how to find which uitableview row has been clicked i have multiple uitableviews on uiscrollview. i have implemented around 10 tables on uiscrollview. i want to know which row of which uitable has been clicked. thanks in advance.,iphone | |
| arraylist with type declaration i don t know weather its a right place to ask .i have a class name inside array list type declaration. what does it mean i might be missing some part of java tutorial . <pre><code> public arraylist<num> arr ; </code></pre>,java | |
| how to make two classes sharing a same attribute i have defined a class that posseses an attribute <code>score</code> which is a matrix. let s say that <code>var</code> is an instance of this class. i have another class that needs to access one particular cell of the matrix <code>var.score</code>. i would like to do something like that : <pre><code>class myclass: def __init__(self r c): self.cell = var.score[r][c] ... # then make operations on self.cell </code></pre> except that if <code>self.cell</code> is modified the modification should also reflect on <code>var.score[r][c]</code>. the goal of creating <code>self.cell</code> and not simply using <code>var.score[r][c]</code> is for clarity and for avoiding dragging <code>r</code> and <code>c</code> along the following definition of the class. i ve seen solutions using wrapper mutable objects like a list that didn t satisfied me. so what is the best solution to implement that,python | |
| how to pass a variable from ajax response to a js function onclick i want to pass the value of a variable to a javascript function as parameter on click of a link.i get this value from ajax response. for this i have done this code but getting error in console that test not define. <pre><code>var test = data.filename; alert( hello world + test); // this gives me hello world download/15__priority____4x6__label.jpeg var lbdownhtml = ; lbdownhtml += <div><a href= + data.functpath + ><span>download label</span></a> ; lbdownhtml += </div> ; lbdownhtml += <div><a id= print_link onclick= print_funct(test);return false; ><span>print label</span></a> ; lbdownhtml += </div> ; function print_funct (test) { alert( hello world +test); } </code></pre> how can i pass my variable test to my function,javascript | |
| dict value can t be assigned while appending.. if <code>valst</code> is a true list (containing elements) why does this work: <pre><code>valst.append(seq) id_seq_dict[id] = valst </code></pre> but this does not work: <pre><code>id_seq_dict[id] = valst.append(seq) </code></pre> is it because the append method returns nothing,python | |
| javascript src files are not loaded ok i m using the most current version of aptana studio 3 version: 3.4.2.201308081805 install directory: file:/applications/aptana studio 3/ i m doing basic html and java script in a course online the html gets shown / called just fine but no matter what i call the java script file and it end s in js i get nothing using safari as the browser and on another computer i used the firefox built into aptana i believe. both files are in the same path also. i ve tried this on 2 different computer s so i m wondering if i m missing a plugin or just do not have something setup properly. below are file content s <h3>container.html:</h3> <pre><code> <html> <head> <title>simple page</title> </head> <body> <p>this is a very simple html page</p> <script src= new_file.js </script> </body> </html> </code></pre> <h3>new_file.js:</h3> <pre><code>alert( hello world );` </code></pre> thats it from what i can think to post all assistance appreciated please include exact directions in the case i m missing a plugin and where and how to download and install this.,javascript | |
| python - code not processing all files in directory the code below is only processing one file in my textpath directory. i am using for .. in ..: statement so it should process all the files in the directory. i m a python newbie so any help would really be appreciated! <pre><code>textpath = c:\users\sl\documents\ff project\scratchpad\text newpath = c:\users\sl\documents\ff project\scratchpad\textfiles text2breaks = os.listdir(textpath) for text2break in text2breaks: file = os.path.join(textpath text2break) textfile=open(file) textfilecontent=textfile.read() textfilelist = re.split( [0-9]{1 2} of [0-9]{1 4} documents textfilecontent) for item in sorted(set(textfilelist)): listpos = textfilelist.index(item) resultsfilename = os.path.join(newpath text2break[:-4] + _ + str(listpos) + .txt ) resultsfile = open(resultsfilename w ) resultsfile.writelines(item) resultsfile.close() </code></pre>,python | |
| long declared in class but constructor seems to wait for int i have the following class in java: <pre><code>class adresse4 { private string strasse; private string hausnummer; private int postleitzahl; private string ort; private long telefon; adresse4(string strasse string hausnummer int postleitzahl string ort long telefon) { this.strasse = strasse; this.hausnummer = hausnummer; this.postleitzahl = postleitzahl; this.ort = ort; this.telefon = telefon; } adresse4(adresse4 ad) { this.strasse = ad.strasse; this.hausnummer = ad.hausnummer; this.postleitzahl = ad.postleitzahl; this.ort = ad.ort; this.telefon = ad.telefon; } } </code></pre> and creating an object from this class like this: <pre><code>adresse4 adtest = new adresse4( lothstraße 22 80999 ort.berlin 09909999); </code></pre> my ide tells me that the integer number is too large where i have declared a long. how can i fix this,java | |
| how to convert datetime variable to string in javascript how to convert datetime variable to string in javascript,javascript | |
| python os.environ os.putenv /usr/bin/env i want to ensure <code>os.system( env )</code> not contain some specific variable <code>myname</code> which is export in <code>~/.bashrc</code> as <code>export myname=csj</code> therefore i wrote below python code: <pre><code>import os def print_all(): print os.environ[ myname ]=%s % os.environ.get( myname ) print os.getenv( myname )=%s % os.getenv( myname ) os.system( env | grep myname ) print def delete_myname(): if myname in os.environ: os.environ.pop( myname ) if os.getenv( myname ): os.unsetenv( myname ) print_all() os.putenv( myname csj2 ) print --------------------- delete_myname() print_all() os.putenv( myname csj3 ) print --------------------- delete_myname() print_all() </code></pre> i think examine both <code>os.environ[ myname ]</code> and <code>os.getenv( myname )</code> and then delete them if exist can ensure <code>os.system( env | grep myname )</code> get nothing. however the result is: <pre><code>os.environ[ myname ]=csj os.getenv( myname )=csj myname=csj --------------------- os.environ[ myname ]=none os.getenv( myname )=none --------------------- os.environ[ myname ]=none os.getenv( myname )=none myname=csj3 </code></pre> i don t understand why i still got <code>csj3</code> on <code>os.system( env | grep myname )</code>,python | |
| downling file as word not in excel format <pre><code><script type= text/javascript > /*excel print */ function write_to_excel() { window.open( data:application/vnd.ms-excel filename=filename.xls + encodeuricomponent($( #crud ))); } </script> <button type= button onclick= write_to_excel() >export</button> <div class= d id= crud > </div> </code></pre> this is the code i have used... i need to download the div tag in excel format... when i click the button it download the div tag but not in excel format... please help me in this..!!!,javascript | |
| how to delimit the range of an instance variable of a class in java i am doing some java exercise and trying to figure out a way to impose restrictions on the scope of an instance variable. for example i constructed a class called time. it has 3 instance variables hour minute and second. take hour for example it should be between 0 to 23. i have some methods inside this class to manipulate the hour variable. but i need to make sure hour is always within 0 to 23. i know there is a method enum type. like this <pre><code>public enum hour { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 } </code></pre> and then insert an hour type variable in time class. but what if hour is a double type variable continuous variable. and it has its upper and lower limit. how do i delimit a continuous variable,java | |
| any difference between using or not for properties in a javascript object i wonder if there is any difference between using or not with js objects with : <code>var object = { prop1 : 1 prop2 : 2 prop3 : 3 }</code> vs. without : <code>var object = { prop1: 1 prop2: 2 prop3: 3 }</code>,javascript | |
| chrome not supporting for enter key onkey press event in chrome browser i am getting typeerror: translate is not a function: the code is working in firefox correctly. but not in chrome below is my code snippet: thanks in advance <pre><code><script language= javascript > function translate(event) { if ( event.keycode == 13) { submitform( mainform ); } } </script> <form name= mainform > <input id = password maxlength= 50 type = password name = password width = 250px onkeypress= javascript: translate(event) /> </form> <script language= javascript > buttongen( <%=mm.getmessage( ibe ibe_prmt_sign_in_g )%> javascript:submitform( mainform ) ); </script> </code></pre>,javascript | |
| how to add two flavors of objects in one list using generics i am new to java and have small doubt. consider this case: <blockquote> i have fruit class this is super class and two subclasses those are apple and orange. now i want to keep these two types of objects into one list object using generics concept. </blockquote>,java | |
| how to declare a variable to be implemented in the subclass in python <h2>update</h2> actually i have tested all the answers but a feature i want still can t be achieved. using <code>@property</code> force the subclass to directly declare the property but not something like <code>self.property = xxx</code> in one function. how could i also achieve this i mean if the subclass <code>__get__</code> the property before <code>__set__</code> then raise <code>notimplementederror</code>. <hr> how to declare a variable in the super class which should be implemented in the subclass in other word i want to declare a virtual variable in super class. <pre><code>class a: def a(self): # perfect! raise notimplementederror( ... ) b = raise notimplementederror( ... ) #how to declare a variable similar with the function above </code></pre>,python | |
| is it better to store big number in list is it memory efficient to store big number in list why does the following happens <pre><code>>>> a = 100**100 >>> sys.getsizeof(a) 102 >>> b = [100**100] >>> sys.getsizeof(b) 40 </code></pre> why size of a and b are not equal <pre><code>>>> c = [1 100**100] >>> sys.getsizeof(c) 44 >>> d = [1000**1000 100**100] >>> sys.getsizeof(d) 44 </code></pre> why size of c and d are equal,python | |
| javascript - if statement error wondering if someone can steer me into the right direction i m trying to use javascript to make a little game to help me learn. essentially i declare all my variables which i want to change outside of my function so they act global which works in the code but the if statement seems to be not proving successful i cant seem to correct this as tutorials point to my code as correct please see code below; <pre><code>var refresh; refresh = inactive ; var counter; counter = 0; var starttime; function startgame() { var startdate; startdate = new date(); starttime = d.gettime(); refresh = active ; } function functionb1() { if (refresh == active ){ document.getelementbyid( bean1 ).style.display = none ; counter ++; document.getelementbyid( beancount ).innerhtml = counter + out of 150 ; } } </code></pre>,javascript | |
| hung jvm consuming 100% cpu we have a java server running on sun jre 6u20 on linux 32-bit (centos). we use the server hotspot with cms collector with the following options (i ve only provided the relevant ones): <pre><code>-xmx896m -xss128k -xx:newsize=384m -xx:maxpermsize=96m -xx:+useparnewgc -xx:+useconcmarksweepgc </code></pre> sometimes after running for a while the jvm seems to slip into a hung state whereby even though we don t make any requests to the application the cpu continues to spin at 100% (we have 8 logical cpus so it looks like only one cpu does the spinning). in this state the jvm doesn t respond to sighup signals (kill -3) and we can t connect to it normally with jstack. we can connect with jstack -f but the output is dodgy (we can see lots of nullpointerexceptions from jstack apparently because it wasn t able to walk some stacks). so the jstack -f output seems to be useless. we have run a stack dump from gdb though and we were able to match the thread id that spins the cpu (we found that using top with a per-thread view - h option) with a thread stack that appears in the gdb result and this is how it looks like: <pre><code>thread 443 (thread 0x7e5b90 (lwp 26310)): #0 0x0115ebd3 in compactiblefreelistspace::block_size(heapword const*) const () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #1 0x01160ff9 in compactiblefreelistspace::prepare_for_compaction(compactpoint*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #2 0x0123456c in generation::prepare_for_compaction(compactpoint*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #3 0x01229b2c in gencollectedheap::prepare_for_compaction() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #4 0x0122a7fc in genmarksweep::invoke_at_safepoint(int referenceprocessor* bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #5 0x01186024 in cmscollector::do_compaction_work(bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #6 0x011859ee in cmscollector::acquire_control_and_collect(bool bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #7 0x01185705 in concurrentmarksweepgeneration::collect(bool bool unsigned int bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #8 0x01227f53 in gencollectedheap::do_collection(bool bool unsigned int bool int) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #9 0x0115c7b5 in gencollectorpolicy::satisfy_failed_allocation(unsigned int bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #10 0x0122859c in gencollectedheap::satisfy_failed_allocation(unsigned int bool) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #11 0x0158a8ce in vm_gencollectforallocation::doit() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #12 0x015987e6 in vm_operation::evaluate() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #13 0x01597c93 in vmthread::evaluate_operation(vm_operation*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #14 0x01597f0f in vmthread::loop() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #15 0x015979f0 in vmthread::run() () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #16 0x0145c24e in java_start(thread*) () from /usr/java/jdk1.6.0_20/jre/lib/i386/server/libjvm.so #17 0x00ccd46b in start_thread () from /lib/libpthread.so.0 #18 0x00bc2dbe in clone () from /lib/libc.so.6 </code></pre> it seems that a jvm thread is spinning while doing some cms related work. we have checked the memory usage on the box there seems to be enough memory available and the system is not swapping. has anyone come across such a situation does it look like a jvm bug <strong>update</strong> i ve obtained some more information about this problem (it happened again on a server that has been running for more than 7 days). when the jvm entered the hung state it stayed like that for 2 hours until the server was manually restarted. we have obtained a core dump of the process and the gc log. we tried to get a heap dump as well but jmap failed. we tried to use jmap -f but then only a 4mb file was written before the program aborted with an exception (something about the a memory location not being accessible). so far i think the most interesting information comes from the gc log. it seems that the gc logging stopped as well (possibly at the time when the vm thread went into the long loop): <pre><code>657501.199: [full gc (system) 657501.199: [cms: 400352k->313412k(524288k) 2.4024120 secs] 660634k->313412k(878208k) [cms perm : 29455k->29320k(68568k)] 2.4026470 secs] [times: user=2.39 sys=0.01 real=2.40 secs] 657513.941: [gc 657513.941: [parnew: 314624k->13999k(353920k) 0.0228180 secs] 628036k->327412k(878208k) 0.0230510 secs] [times: user=0.08 sys=0.00 real=0.02 secs] 657523.772: [gc 657523.772: [parnew: 328623k->17110k(353920k) 0.0244910 secs] 642036k->330523k(878208k) 0.0247140 secs] [times: user=0.08 sys=0.00 real=0.02 secs] 657535.473: [gc 657535.473: [parnew: 331734k->20282k(353920k) 0.0259480 secs] 645147k->333695k(878208k) 0.0261670 secs] [times: user=0.11 sys=0.00 real=0.02 secs] .... .... 688346.765: [gc [1 cms-initial-mark: 485248k(524288k)] 515694k(878208k) 0.0343730 secs] [times: user=0.03 sys=0.00 real=0.04 secs] 688346.800: [cms-concurrent-mark-start] 688347.964: [cms-concurrent-mark: 1.083/1.164 secs] [times: user=2.52 sys=0.09 real=1.16 secs] 688347.964: [cms-concurrent-preclean-start] 688347.969: [cms-concurrent-preclean: 0.004/0.005 secs] [times: user=0.00 sys=0.01 real=0.01 secs] 688347.969: [cms-concurrent-abortable-preclean-start] cms: abort preclean due to time 688352.986: [cms-concurrent-abortable-preclean: 2.351/5.017 secs] [times: user=3.83 sys=0.38 real=5.01 secs] 688352.987: [gc[yg occupancy: 297806 k (353920 k)]688352.987: [rescan (parallel) 0.1815250 secs]688353.169: [weak refs processing 0.0312660 secs] [1 cms-remark: 485248k(524288k)] 783055k(878208k) 0.2131580 secs] [times: user=1.13 sys =0.00 real=0.22 secs] 688353.201: [cms-concurrent-sweep-start] 688353.903: [cms-concurrent-sweep: 0.660/0.702 secs] [times: user=0.91 sys=0.07 real=0.70 secs] 688353.903: [cms-concurrent-reset-start] 688353.912: [cms-concurrent-reset: 0.008/0.008 secs] [times: user=0.01 sys=0.00 real=0.01 secs] 688354.243: [gc 688354.243: [parnew: 344928k->30151k(353920k) 0.0305020 secs] 681955k->368044k(878208k) 0.0308880 secs] [times: user=0.15 sys=0.00 real=0.03 secs] .... .... 688943.029: [gc 688943.029: [parnew: 336531k->17143k(353920k) 0.0237360 secs] 813250k->494327k(878208k) 0.0241260 secs] [times: user=0.10 sys=0.00 real=0.03 secs] 688950.620: [gc 688950.620: [parnew: 331767k->22442k(353920k) 0.0344110 secs] 808951k->499996k(878208k) 0.0347690 secs] [times: user=0.11 sys=0.00 real=0.04 secs] 688956.596: [gc 688956.596: [parnew: 337064k->37809k(353920k) 0.0488170 secs] 814618k->515896k(878208k) 0.0491550 secs] [times: user=0.18 sys=0.04 real=0.05 secs] 688961.470: [gc 688961.471: [parnew (promotion failed): 352433k->332183k(353920k) 0.1862520 secs]688961.657: [cms </code></pre> i suspect this problem has something to do with the last line in the log (i ve added some .... in order to skip some lines that were not interesting). the fact that the server stayed in the hung state for 2 hours (probably trying to gc and compact the old generation) seems quite strange to me. also the gc log stops suddenly with that message and nothing else gets printed any more probably because the vm thread gets into some sort of infinite loop (or something that takes 2+ hours).,java | |
| += operator and int long usage <pre><code>int a = 1l; </code></pre> this doesn t compile (of course). <em>incompatible types: possible lossy conversion from long to int</em> <pre><code>int b = 0; b += long.max_value; </code></pre> this does compile! but why is it allowed,java | |
| confused by earlier errors - bailing out i am getting an unusual error when i try building or running my iphone game. //gamescene.mm <pre><code>- (void) onexit { if(!([simplebox2dscrollerappdelegate get].paused)) //error comes here { [simplebox2dscrollerappdelegate get].paused = yes; [super onexit]; } } </code></pre> // simplebox2dscrollerappdelegate.mm <pre><code>+(simplebox2dscrollerappdelegate *) get { return (simplebox2dscrollerappdelegate *) [[uiapplication sharedapplication] delegate]; } </code></pre> what might be the reason,iphone | |
| how to get local notifications when app enters the background i am new to iphone. i am doing project in that i have struck in the middle because of local notifications concept.in my applications i am sending the request to the server and getting response for every 20 sec by using timer concept but when the application enter the background how can we get the response from the server for every 20 sec by using local notifications.if anybody knows this concept please help me...,iphone | |
| how can i do custom drawing on part of a view that also contains buttons and other controls i ve tried this demo code and gotten it to work fine: <a href= http://www.techotopia.com/index.php/an_iphone_graphics_drawing_tutorial_using_quartz_2d rel= nofollow >http://www.techotopia.com/index.php/an_iphone_graphics_drawing_tutorial_using_quartz_2d</a> what i d like to do however is to do the same custom drawing onto a panel or canvas of some sort sitting on the view (instead of drawing on the view itself). i d also like to have other controls (like buttons) on the same view and have the button clicks control the actual drawing. is there an easy way to do this,iphone | |
| why isn t my code writing the output to the file created i tried writing my own script in python that takes the output from the iplist variable and prints it to a text file however i m stuck as to why the script will create the file but not print anything i ve been stuck on this for a day now and nothing i ve found online has seemed to help me :/ any pointers would be greatly appreciated! <pre><code>import socket import time as t from os import path def ip_list(dest): iplist = socket.gethostbyname_ex(socket.gethostname()) date = t.localtime(t.time()) name = ip addresses on %d_%d_%d.txt % (date[1] date[2] date[0] % 100) if not (path.isfile(name)): file = open(name w ) for str in iplist: print >>f str f.close() ## has to match open indentation if __name__ == __main__ : destination = c:\\users\\kl\\desktop\\python files\\ ip_list( destination ) raw_input( done! ) </code></pre> i should also add that i have attempted to use the f.write() command as well not that that might be of much help,python | |
| empty table with no data display i having problem with my table. after loading everything. my data is being loaded and string into name and loadscore. however it will not show in the table. please help. <pre><code>static const nsinteger knamelabeltag = 1337; static const nsinteger kscorelabeltag = 5555; - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { static nsstring *cellidentifier = @ cell ; uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:cellidentifier]; if (cell == nil) { cell = [[[uitableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:cellidentifier] autorelease]; uilabel *namelabel = [[uilabel new] autorelease]; [namelabel settag:knamelabeltag]; [cell.contentview addsubview:namelabel]; uilabel *highscorelabel = [[uilabel new] autorelease]; [highscorelabel settag:kscorelabeltag]; [cell.contentview addsubview:highscorelabel]; } // configure the cell. //cell.textlabel.text = [loadhighscore objectatindex:indexpath.row]; nsdictionary *score = [self.loadhighscore objectatindex:indexpath.row]; nsstring *name = [score objectforkey:@ scorename ]; nsstring *loadscore = [score objectforkey:@ highscore ]; [(uilabel *)[cell.contentview viewwithtag:knamelabeltag] settext:name]; [(uilabel *)[cell.contentview viewwithtag:kscorelabeltag] settext:loadscore]; return cell; } </code></pre>,iphone | |
| nsdate problem with retrieving events from calendar i am receiving two values from nsdatepicker (startdate enddate). after that i try to retrieve calendar events between these two dates. instead of startdate enddate i give distantpast distantfuture. the program not showing any error. when using this code i got exc_bad_access. what s wrong with this code <pre><code>nscalendar *syscalendar = [[nscalendar currentcalendar] autorelease]; unsigned int unitflags = nsdaycalendarunit; nsdatecomponents *difference=[[[nsdatecomponents alloc] init] autorelease]; difference = [[syscalendar components:unitflags fromdate:startdate todate:enddate options:0] autorelease]; double days = [difference day]; nslog(@ dayss %@ days); </code></pre>,iphone | |
| is there anyway to display html content in textview i tried the following one from iphone cook book .i displayed html content through accessing private api of uitextview like <pre><code> @interface uitextview (extended) - (void)setcontenttohtmlstring:(nsstring *) contenttext; @end </code></pre> it works <strong>fine</strong>.but apple wont allow accessing private api.any solution pls,iphone | |
| performance of method i am calling a certain method when i call it alone using a it take an average (for 10000 call) of 11523 nano second but when i call it from a context of another class it take about 95721 the method body is <pre><code>public static byte [] validaterequest(karppacket karppacket) { try { long before time; before =system.nanotime(); byte [] encryptedticket=karppacket.getticket(); byte[] decryptedticket=null; if(encryptedticket==null) return null; if(encryptedticket.length%16==0) { decryptedticket = encryptor.decrypt(encryptedticket clientwindow.getsecretkey()); time=system.nanotime()-before; system.out.println(time); if(karppacket.getsenderprotocoladdressasstring().equals(getsrcaddressfromticket(decryptedticket))) { clientticketmanager.getarpcash().put(karppacket.getsenderprotocoladdressasstring() karppacket.getsenderhardwareaddressformatted()); return decryptedticket; } return decryptedticket; } return null; } catch (exception e) { e.printstacktrace(); return null; } </code></pre> why is that and how to improve its performance. i hope this enough code here is the encryptor.decrypt method <pre><code>public static byte[] decrypt(byte [] encryptedbytearray string keystring)throws nosuchalgorithmexception nosuchpaddingexception invalidkeyexception illegalblocksizeexception badpaddingexception { secretkey key=loadkey(keystring); byte[] clearbytearray; cipher dcipher=cipher.getinstance( aes ); dcipher.init(cipher.decrypt_mode key ); clearbytearray=dcipher.dofinal(encryptedbytearray); return clearbytearray; </code></pre> } and the load key <pre><code>public static secretkey loadkey(string keystring) { byte[] encoded = keystring.getbytes(); secretkey key = new secretkeyspec(encoded aes ); return key; } </code></pre> the other context at which a run the validate request method <pre><code>package karp.client; import java.awt.color; import java.net.inet4address; import java.net.inetaddress; import java.net.networkinterface; import java.security.invalidkeyexception; import java.security.nosuchalgorithmexception; import java.sql.timestamp; import java.util.date; import javax.crypto.badpaddingexception; import javax.crypto.illegalblocksizeexception; import javax.crypto.nosuchpaddingexception; import javax.swing.joptionpane; import javax.swing.text.style; import javax.swing.text.styleconstants; import javax.swing.text.styleddocument; import karp.client.presentation.clientwindow; import karp.client.util.constants; import karp.generalutil.common.encryptor; import karp.generalutil.destination.ticketdestination; import karp.packet.karppacket; public class karpmessagehandlerp { string localipaddress=null; clientticketmanager clientticketmanager; karpsender karprequestsender=new karpsender(); byte [] srcmac; networkinterface network; public karpmessagehandlerp(karppacket karppacket) { try { long before time; localipaddress=karpreciever.localipaddress; clientticketmanager=karpreciever.clientticketmanager; srcmac = karpreciever.srcmac; // if(karppacket.getoperation()==karppacket.arp_reply) { if(karppacket.getsenderprotocoladdressasstring().equals(localipaddress))//request sent by client { // if the reply was sent by the client no action must be taken. } else { if(karppacket.gettargetprotocoladdressasstring().equals(localipaddress)) { byte [] ticket=karppacket.getticket(); if(ticket==null) { //delete the new entry from cash and refresh the cash deleteentry(karppacket.getsenderprotocoladdressasstring()); } else { if(validatereply(karppacket) ) { } else { deleteentry(karppacket.getsenderprotocoladdressasstring()); //delete entry and refresh cash } } } } } else if(karppacket.getoperation()==karppacket.arp_request) { if(karppacket.getsenderprotocoladdressasstring().equals(localipaddress))//request sent by client { //1 if(karppacket.getticket()!=null) { //custom request no need to add; } //2 else //new request need to add ticket { string destinationid=(karppacket.gettargetprotocoladdressasstring()); // if the map contain ticket to destination add the ticket directly //2-1 karppacket customkarppacket; byte [] ticketdestinationbyte=null; if(clientticketmanager.getdestinationticketmap().containskey(destinationid)) { ticketdestinationbyte=clientticketmanager.getdestinationticketmap().get(destinationid); } //2-2 send ticket request else { ticketdestinationbyte=clientticketmanager.getdestinationticket(destinationid); } if(ticketdestinationbyte!=null) { customkarppacket= karprequestsender.createkarppacket(karppacket.getdstaddress() karppacket.getsrcaddress() inetaddress.getlocalhost().getaddress() karppacket.gettargetprotoaddr() karppacket.gettargethardaddr() ticketdestinationbyte karppacket.arp_request); karprequestsender.sendkarppacket(customkarppacket); } } } else { if(karppacket.gettargetprotocoladdressasstring().equals(localipaddress))//check to see if the request is for the client { byte [] ticketrequest=validaterequest(karppacket); if(ticketrequest!=null) { //reply to the request; string sessionkey=getsessionkeyfromticket(ticketrequest); ticketdestination ticketdestination=new ticketdestination(); ticketdestination.setdestinationid(karppacket.getsenderprotocoladdressasstring()); ticketdestination.setsourceid(karppacket.gettargetprotocoladdressasstring()); ticketdestination.setsourcedestinationkey(sessionkey); byte [] ticketdestinationbyte=ticketdestination.getasbyte(); byte [] encryptedticketdestination=encryptor.encrypt(ticketdestinationbyte sessionkey); ///need to review target hardware address karppacket karppacketreply=karprequestsender.createkarppacket(karppacket.getsrcaddress() srcmac inetaddress.getlocalhost().getaddress() karppacket.getsenderprotoaddr() karppacket.getsrcaddress() encryptedticketdestination karppacket.arp_reply); karprequestsender.sendkarppacket(karppacketreply); } else //delete ticket invalid request { deleteentry(karppacket.getsenderprotocoladdressasstring()); } } } } } catch(exception e) { e.printstacktrace(); } //system.out.println(timeconsumed); } public static byte [] validaterequest(karppacket karppacket) { try { long before time; before =system.nanotime(); byte [] encryptedticket=karppacket.getticket(); byte[] decryptedticket=null; if(encryptedticket==null) return null; if(encryptedticket.length%16==0) { decryptedticket = encryptor.decrypt(encryptedticket clientwindow.getsecretkey()); time=system.nanotime()-before; system.out.println(time); if(karppacket.getsenderprotocoladdressasstring().equals(getsrcaddressfromticket(decryptedticket))) { clientticketmanager.getarpcash().put(karppacket.getsenderprotocoladdressasstring() karppacket.getsenderhardwareaddressformatted()); return decryptedticket; } return decryptedticket; } return null; } catch (exception e) { e.printstacktrace(); return null; } } public boolean validatereply(karppacket karppacket) throws invalidkeyexception nosuchalgorithmexception nosuchpaddingexception illegalblocksizeexception badpaddingexception { // karpreciever.stop=true; // for(int i=0;i<10000;i++) // { string sessionkey; byte[] encryptedticket=karppacket.getticket(); if(clientticketmanager.getdestinationkeymap().containskey(karppacket.getsenderprotocoladdressasstring())) { sessionkey=clientticketmanager.getdestinationkeymap().get(karppacket.getsenderprotocoladdressasstring()); byte[] decryptedticket=encryptor.decrypt(encryptedticket sessionkey); if(karppacket.getsenderprotocoladdressasstring().equals(getsrcaddressfromticket(decryptedticket))) { clientticketmanager.getarpcash().put(karppacket.getsenderprotocoladdressasstring() karppacket.getsenderhardwareaddressformatted()); // after=system.nanotime(); // timeconsumed=(after-before); // system.out.print( kl +timeconsumed); return true; } } //} return false; } public void deleteentry(string entryipaddress) { try { if(!clientticketmanager.getauthenticateduser().contains(entryipaddress)) { if(clientticketmanager.getarpcash().containskey(entryipaddress)) { string updatecommand= arp -s +entryipaddress+ +clientticketmanager.getarpcash().get(entryipaddress); //printcash(); runtime.getruntime().exec(updatecommand); } else { string deletecommand = arp -d +entryipaddress; runtime.getruntime().exec(deletecommand); } } } catch(exception e) { } } public static string getsrcaddressfromticket(byte [] ticket) { byte [] srcbyte=new byte[4]; system.arraycopy(ticket 16 srcbyte 0 4); string srcstring=ticketdestination.getipaddressasstring(srcbyte); return srcstring; } public string getsessionkeyfromticket(byte [] ticket) { byte [] sessionkeybyte=new byte[16]; system.arraycopy(ticket 0 sessionkeybyte 0 16); return new string(sessionkeybyte); } public void printcash() { for(object entry:clientticketmanager.getarpcash().entryset().toarray()) { system.out.println(entry+ +clientticketmanager.getarpcash().get(entry)+ entry in cash ); } } } </code></pre>,java | |
| uitableview select starting cell programmatically i used uitableview in my iphone application. i move to next view using tableviewcell click event. but when i click uinavigation s back button the tableview cell selection is like as previous click. but i need when i click navigation s back button then the cursor position move to tableview s starting cell. that is when i click the back button the table view automatically select first cell.,iphone | |
| javascript dateformat for different timezones i m a java developer and i m used to the simpledateformat class that allows me to format any date to any format by settings a timezone. <pre><code>date date = new date(); simpledateformat sdf = new simpledateformat( dd-mm-yyyy hh:mm:ss ); sdf.settimezone(timezone.gettimezone( america/los_angeles )); system.out.println(sdf.format(date)); // prints date in los angeles sdf.settimezone(timezone.gettimezone( america/chicago )); system.out.println(sdf.format(date)); // prints same date in chicago </code></pre> simpledateformat is a pretty neat solution in java but unfortunately i can t find any similar alternative in javascript. i m extending the date prototype in <strong>javascript</strong> to do exactly the same. i have dates in unix format but i want to format them in different timezones. <pre><code>date.prototype.format = function(format timezone) { // now what return formatteddate; } </code></pre> i m looking for a neat way to do this rather than a hack. thanks,javascript | |
| cant access new frameworks with xcode 3.2 i had x code 3.1 and sdk 3.2 but i wanted to use new frameworks so i installed x code 3.2 but i cannot run new applications now.can anyone tell what is the problem i also want to tell that i installed only x code not iphone sdk,iphone | |
| is it possible to get flat (unboxed) structures in java i want to create a structure with several arrays inside and possibly other structures. is it possible to have flat memory layout for this i.e. one piece of memory witout pointers,java | |
| how to get the temporary recorded videopath in iphone i want to know is it possible to get the temporary path of the video that has been recorded in iphone i want to create an app that record through iphone and then saved the video to a place where i want.,iphone | |
| how can i get image from local folder through xml file i am new to iphone. what i need is i have to get image through xml parsing and that image is from local folder. what i am doing is store the name of the images in the xml and fetch the name accordingly... it gets name but image is not displayed is there any necessity of converting image string name to bitmap code or anything. my code is as fallows. <pre><code> < xml version= 1.0 encoding= utf-8 > <kids> <image>apple.png</image> </kids> kids*obj = [appdelegate.kids objectatindex:0]; nslog( image %@ obj.image); nsstring *strring = obj.image; imageview = [[uiimageview alloc]initwithimage:[uiimage imagenamed:string]]; </code></pre> here i am getting image string name in console as apple.png but it did n t display image in imageview is there anything wrong. if any thing wrong please post any link related to how to get image from local folder through xml file.,iphone | |
| java jframe height excluding title bar when you specify height for jframe the title bar consumes a part of this height is there a method or something to know the amount of this consumed part,java | |
| how to prevent .plist file name from showing i am making a multi- timer app that uses plist files. the plist files are loaded into a tableview. i don t want the .plist extension from showing in the tableview. is there a solution for this here is the code that i need help with. this is a nsarray not nsstring <pre><code>self.files = [[nsbundle mainbundle] pathsforresourcesoftype:@ plist indirectory:@ timers1 ]; </code></pre>,iphone | |
| javascript reccurrency picker is there a javascript library which makes it possible to choose from every hour of the day and have options like every work day only on weekends etc. or every sunday 19:00.,javascript | |
| event handling for ios - how hittest:withevent: and pointinside:withevent: are related while most apple documents are very well written i think <a href= http://developer.apple.com/library/ios/#documentation/eventhandling/conceptual/eventhandlingiphoneos/introduction/introduction.html rel= noreferrer >event handling guide for ios</a> is an exception. it s hard for me to clearly understand what s been described there. the document says <blockquote> in hit-testing a window calls <code>hittest:withevent:</code> on the top-most view of the view hierarchy; this method proceeds by recursively calling <code>pointinside:withevent:</code> on each view in the view hierarchy that returns yes proceeding down the hierarchy until it finds the subview within whose bounds the touch took place. that view becomes the hit-test view. </blockquote> so is it like that only <code>hittest:withevent:</code> of the top-most view is called by the system which calls <code>pointinside:withevent:</code> of all of subviews and if the return from a specific subview is yes then calls <code>pointinside:withevent:</code> of that subview s subclasses,iphone | |
| combine variable with loop i need to combine 2 variable names but it must be in a for loop. also i need to get the variable from a php file to know how long the loop must be. i have while loop in php file which count how many objects i have and make $k++ for every object. after while loop i have variable what store count of objects $galak=$k-1 ... i need to make javascript something like: <pre><code>document.getelementbyid( galak ); var i; for (i = 1; i < galak; i++) { var decimalmask.i = new inputmask(jst_mask_decimal rdcena .i); } </code></pre> after loop for there must be decimalmask1 decimalmask2 decimalmask3 etc. and rdcena1 rdcena2 rdcena3 etc. so question is how to add variable i value to other variables decimalmask and rdcena !,javascript | |
| javascript - is there any way to register an event on class change i m trying to understand whether there s a way to register an event whenever an element s class has been changed. i afraid of using setinterval for a check cause it might cause the browser to stuck. thanks.,javascript | |
| required a code <blockquote> <strong>possible duplicates:</strong><br> <a href= https://stackoverflow.com/questions/5528664/problem-with-alphabetic-sorting >problem with alphabetic sorting</a><br> <a href= https://stackoverflow.com/questions/5521433/i-want-to-search-the-name-alphabetically-required-query-for-that >i want to search the name alphabetically required query for that</a> </blockquote> sir i am searching the person name by alphabet and my code searching the result by alphabet as well but i am getting the result in string means(all the name in same line) but i want answer in list help me in this my code is: <pre><code> if(searchby.equals( name )) { try { class.forname( sun.jdbc.odbc.jdbcodbcdriver ); system.out.println( \n driver loaded ); connection con=drivermanager.getconnection( jdbc:odbc:wanisamajdb ); statement stmt=con.createstatement(); // resultset rs = stmt.executequery( select * from familycensus where name > + tfsearch.gettext()+ order by name asc +maxresults); resultset rs = stmt.executequery( select * from familycensus where name like + tfsearch.gettext()+ % order by name asc ); system.out.println( hi ); // while (rs.next()) { // string names = rs.getstring( name ); // system.out.println( name: + names); // } stringbuilder sb = new stringbuilder(); while (rs.next()) { string name = rs.getstring( name ); sb.append(name + ); } string names = sb.tostring().trim(); // rs.next(); // string names = rs.getstring( name ); // system.out.println( name: + names ); joptionpane.showmessagedialog(null record found ); tasearch.settext(names); } catch (exception e) { system.out.println( exception + e); } } </code></pre>,java | |
| converting javascript integer to byte array and back <pre><code>function intfrombytes( x ){ var val = 0; for (var i = 0; i < x.length; ++i) { val += x[i]; if (i < x.length-1) { val = val << 8; } } return val; } function getint64bytes( x ){ var bytes = []; var i = 8; do { bytes[--i] = x & (255); x = x>>8; } while ( i ) return bytes; } </code></pre> i am trying to convert a javascript number to a byte array and then back to a number. however the above functions produce incorrect output with a very large number. <pre><code>var array = getint64bytes(23423423); var value = intfrombytes(array); console.log(value); //prints 23423423 - correct var array = getint64bytes(45035996273704); var value = intfrombytes(array); console.log(value); //prints -1030792152 - incorrect </code></pre> it is my understanding that javascript floats are 53 bits so it shouldn t be overflowing alert(math.pow(2 53)) works fine.,javascript | |
| how can i develop my own java library are there any good tutorials / starting points you can suggest for me to develop my own java libraries (i m thinking about developing a small graphics library at the moment.) thanks.,java | |
| how to get the title of the metadata which is placed in directories in resources folder i am new to iphone programming. i want to get the title of mp3 file which is located in directory of resourse folder resourse folder structure is following resourse raj(directory)---->1.mp3 ---->2.mp3 here i know to get the path of the file if i get path it shows like this /users/chary/library/application support/iphone simulator/5.0/applications/b02404e5-52dc-49b6-8dbb-c9946e4331af/bibleplayer.app/raj/1.mp3 i have a picker view in that i have to show only title like as 1 2 for 1.mp3 and 2.mp3 but how can get like this it will show the entire path so if any body know this please help me.,iphone | |
| questions on javascript hoisting while i was reading about javascript hoisting i tried the following. i am not sure why the first one and second one output differently. thanks in advance. (i am not even sure that this is related to hoisting. ) <pre><code>var me = 1; function findme(){ if(me){ console.log( me );//output 1 } console.log( me ); //output 1 } findme(); </code></pre> however the followings output undefined. <pre><code>var me = 1; function findme(){ if(me){ var me = 100; console.log(me); } console.log(me); } findme(); // undefined </code></pre>,javascript | |
| getting the next key i have an array like this: <pre><code>var bookch = { tomsawyer :[twain 50] parelandra :[lewis 150] roguecode :[russinovich 23] wrinkle :[lengle 12]}; </code></pre> if i match something on roguecode i want to print the next key to the console (e.g. if i match roguecode print wrinkle). here s what i have to do the match but i have no idea how to print the next key in the array instead of the current one. if they were numbered keys it would obviously be easy but they aren t... <pre><code>var currentbook = roguecode ; for (var bookkey in bookch) { if (bookkey == currentbook) { console.log( next book: + ); } } </code></pre>,javascript | |
| program received signal sigabrt when presses info button on the application when you receive this message <strong>program received signal sigabrt</strong> while pressing info button on the application. then how to figure out what is wrong and exactly where code is wrong. thanks for help.,iphone | |
| how to splice an array based on the length i pass and also re-initialize array with remaining elements <blockquote> this is the array </blockquote> <pre><code>pickelement = [ 2123 149 3096 1471 ]; var shiftlength = 4; //this is also dynamic </code></pre> <blockquote> from the above i need to splice in loop length to splice will be dynamic </blockquote> <pre><code>for(var s = 0;s<shiftlength;s++){ nofofillres = ext.componentquery.query( [name=resources +s+ ] [shiftreslength].value.length; searchinput = pickelement .splice(nofofillres); // this is not working as expected console.log(searchinput); // each time same number of elements is coming // i need an answer suppose if nofofillres for 1st iteration is 1 and second is 1 and third is 1 and fourth is 1 then spliced element should be 2123 spliced element should be 149 spliced element should be 3096 spliced element should be 1471 and also each time when sliced pickelement should be reinitalzied as below [ 149 3096 1471 ] [ 3096 1471 ]; [ 1471 ]; please provide an answer m stuck with it } </code></pre>,javascript | |
| python list comprehension get dictionary by key given the key joe how can i extract the dictionary <code>{ joe : 60}</code> from <code>my_list</code> <pre><code>my_list = [{ joe : 60} { dave : 61}] </code></pre> i d like to avoid using a for loop,python | |
| iphone application provisioning profile i am working on my iphone application and it was working on the device. i don t know what i did but now it says app cannot be installed on the device. please install the provisioning profile abc_pop . when i say install and run then it says failed to run on device. what should i do. how can i reset everything. i know it was working before.,iphone | |
| python: writing to a file i ve been having trouble with this for a while. how do i open a file in python and continue writing to it but not overwriting what i had written before for instance: the code below will write output is ok . then the next few lines will overwrite it and it will just be done but i want both output is ok done in the file <pre><code>f = open( out.log w+ ) f.write( output is ) # some work s = ok. f.write(s) f.write( \n ) f.flush() f.close() # some other work f = open( out.log w+ ) f.write( done\n ) f.flush() f.close() </code></pre> i want to be able to freely open and write to it in intervals. close it. then repeat the process over and over. thanks for any help :d,python | |
| java - set not printed out in order i just started learning about sets and it was mentioned that it did not care about order unlike lists. however when i typed this piece of code: <pre><code>public class test { public static void main(string[] args) { set<integer> nums = new hashset<integer>(); nums.add(0); nums.add(1); nums.add(2); nums.add(3); for (integer num : nums) system.out.println(num); } } </code></pre> based on the first line the output should have been random but instead it gave ordered output: <pre><code>0 1 2 3 </code></pre> i have tried scrambling the order at which the numbers are being added like this: <pre><code>public class test { public static void main(string[] args) { set<integer> nums = new hashset<integer>(); nums.add(1); nums.add(0); nums.add(3); nums.add(2); for (integer num : nums) system.out.println(num); } } </code></pre> oddly though the output was still ordered! is there anything that somehow sorts the set before i print its elements out or is <code>hashset</code> not meant for creating unordered sets,java | |
| java copy + user input word program with stupid results just tried to create a program that lets the user put a word that will appear in a new .txt file every 3 words. here goes the code: <pre><code>public static void main(string[] args) { if(args.length != 1){ system.out.println( wrong amount of files ); return; } try(filereader fr = new filereader(args[0]); filewriter fw = new filewriter( lorem ipsum1.txt )){ bufferedreader br = new bufferedreader(new inputstreamreader(system.in)); bufferedreader br1 = new bufferedreader(fr); string str; char ch; int count = 0; str = br.readline(); do{ ch = (char) br1.read(); if(ch == ){ count++; } else if(count == 3){ fw.write( +str + ); count = 0; } else{ fw.write(ch); } }while(br1.read() != -1); }catch(ioexception exc){ } } </code></pre> text is just a lorem ipsum. that s the outcome after putting word word : <pre><code>lrmismdlrstae cnettraiicnltiau word prlglttroolscnettri word prsupnisedei word lsmgaaiclsobdutiislgl.di word rtasmnqeusmxmsjsoefctra.cacusnmgai word </code></pre> how to fix this,java | |
| dynamically loading modules in python (+ multi processing question) i am writing a python package which reads the list of modules (along with ancillary data) from a configuration file. i then want to iterate through each of the dynamically loaded modules and invoke a do_work() function in it which will spawn a new process so that the code runs asynchronously in a separate process. at the moment i am importing the list of all known modules at the beginning of my main script - this is a nasty hack i feel and is not very flexible as well as being a maintenance pain. this is the function that spawns the processes. i will like to modify it to dynamically load the module when it is encountered. the key in the dictionary is the name of the module containing the code: <pre><code>def do_work(work_info): for (worker dataset) in work_info.items(): #import the module defined by variable worker here... # [edit] not using threads anymore want to spawn processes asynchronously here... #t = threading.thread(target=worker.do_work args=[dataset]) # i ll not dameonize since spawned children need to clean up on shutdown # since the threads will be holding resources #t.daemon = true #t.start() </code></pre> <strong>question 1</strong> when i call the function in my script (as written above) i get the following error: <blockquote> attributeerror: str object has no attribute do_work </blockquote> which makes sense since the dictionary key is a string (name of the module to be imported). when i add the statement: <strong>import worker</strong> before spawning the thread i get the error: <blockquote> importerror: no module named worker </blockquote> this is strange since the variable name rather than the value it holds are being used - when i print the variable i get the value (as i expect) whats going on <strong>question 2</strong> as i mentioned in the comments section i realize that the do_work() function written in the spawned children needs to cleanup after itself. my understanding is to write a clean_up function that is called when do_work() has completed successfully or an unhandled exception is caught - is there anything more i need to do to ensure resources don t leak or leave the os in an unstable state <strong>question 3</strong> if i comment out the t.daemon flag statement will the code stil run asynchronously . the work carried out by the spawned children are pretty intensive and i don t want to have to be waiting for one child to finish before spawning another child. btw i am aware that threading in python is in reality a kind of time sharing/slicing - thats ok lastly is there a better (more pythonic) way of doing what i m trying to do <strong>[edit]</strong> after reading a little more about pythons gil and the threading (ahem - hack) in python i think its best to use separate processes instead (at least iiuc the script can take advantage of multiple processes if they are available) so i will be spawning new processes instead of threads. i have some sample code for spawning processes but it is a bit trivial (using lambad functions). i would like to know how to expand it so that it can deal with running functions in a loaded module (like i am doing above). this is a snippet of what i have: <pre><code>def do_mp_bench(): q = mp.queue() # not only thread safe but process safe p1 = mp.process(target=lambda: q.put(sum(range(10000000)))) p2 = mp.process(target=lambda: q.put(sum(range(10000000)))) p1.start() p2.start() r1 = q.get() r2 = q.get() return r1 + r2 </code></pre> how may i modify this to process a dictionary of modules and run a do_work() function in each loaded module in a new process,python | |
| trouble with finding a string in my python code i am new to python here is my attempt <pre><code>import urllib2 email_id = input( enter the email id ) content = urllib2.urlopen( https://somewebsite.com/uniqueemail email={email_id}.format(email_id=email_id) ).read() print content if content.find( uniqueemail :false ) == true: print( email exists ) else: print( email doesnt exists ) </code></pre> when the print content code executes my website will display <pre><code>{ params :{ method : get controller : globalusers action : uniqueemail email : theemailaddress_entered } uniqueemail :true} </code></pre> so if uniqueemail prints out true or false depending upon if the email exists. now my doubt is i know i did wrong in passing the email id variable through the parameter in the url. and second is how to check if the value was true or false,python | |
| find a part of a string using python for example: <pre><code>string = abcdefghi separated = abc + x + ghi x = </code></pre> i want to find x using any string.,python | |
| the number of tries never increments by more than one in python - help please whenever it takes me several tries to beat the game it always says the number_of_guesses is 1 which isn t true. what have i done wrong my code: <pre><code>import random print( welcome to rock paper scissors. \nyou will be going up against the computer who will randomly choose an object to duel you with! ) user_win = false while not user_win: user_guess = input( \nchoose either rock paper or scissors: ) user_guess = user_guess.lower() if user_guess != rock and user_guess != paper and user_guess != scissors : print( you didn t enter a valid guess. try again please. ) user_guess = input( \nchoose either rock paper or scissors: ) user_guess = user_guess.lower() computer_guess = random.randint(1 3) if computer_guess == 1: computer_guess = rock elif computer_guess == 2: computer_guess = paper else: computer_guess = scissors print( your guess: user_guess.capitalize() \ncomputer guess: computer_guess.capitalize()) number_of_guesses = 1 if user_guess == computer_guess: print( \nthe game is a tie. you guessed user_guess and so did the computer. ) number_of_guesses += 1 user_win = false elif (user_guess == rock and computer_guess == scissors ) or (user_guess == paper and computer_guess == rock ): print( \ncongratulations! you have beaten the computer by playing user_guess.capitalize() while the computer played computer_guess.capitalize()) user_win = true number_of_guesses += 1 else: print( \ndamn! the computer won by playing computer_guess.capitalize() while you played user_guess.capitalize()) user_win = false number_of_guesses += 1 if number_of_guesses == 1: print( \nyou won and it only took you %d try! % number_of_guesses) else: print( \nyou won and it only took you %d tries! % number_of_guesses) input( \npress enter to exit the program. ) </code></pre> i think that s formatted correctly. it s not easy to put code in here. thank you!,python | |
| function variable s value become undefined after it is returned i wrote a function to find number in 9 99 999 9999... in which the sum of the digit factorials (9! + 9! for 99) of the number is less than the number itself: <pre><code>function findlimit(starting_limit){ var starting_limit_string = starting_limit.tostring(); var limit_factorial = factorial(9) * starting_limit_string.length; if(limit_factorial > starting_limit){ var new_starting_limit = (starting_limit * 10) + 9; findlimit(new_starting_limit); } else { return starting_limit; } } var final_limit = findlimit(9); </code></pre> however final_limit turns out to be undefined. this is despite the fact that when i set a break point at return starting_limit starting_limit is clearly defined as 9999999. so what s going on here why would a defined value change to undefined when returned by my function,javascript | |
| system.getproperty() on a server i m using system.getproperty( user.name ) to get the name of localuser. it works fine and now my class need to work on server. unfortunately system.getproperty( user.name ) try to catch the user name of the server and return root . is it possible using system.getproperty() i get the name of localuser running the class on the server if not is there any way,java | |
| creating a pressure heatmap of a foot for a little background i m part of a project where we are creating a pressure map of foot impacts. an 8x4 layout of the sensors will be made. each cross-section would be a sensor which results in 32 unique pressure points. i am more familiar with the data parsing from sensor data but i do not exactly know the best method to draw a pressure/heatmap of a foot. essentially it would look to be something like <a href= http://i.stack.imgur.com/pkocb.png rel= nofollow >this</a>. what i had in mind was to use some sort of drawing tool to create the foot shape outline and try to find the pixel point or placement for each sensor point. each sensor could be made of a 5x5 pixel block for example to make the coloring resemble a pressure map better. here is <a href= http://i.stack.imgur.com/vqwma.png rel= nofollow >my very first crude design of 8x3 sensors</a>. each block would resemble a sensor (i forgot a fourth column). to better represent a pressure map i was thinking of then making each sensor into a 5x5 or 10x10 pixel block to disperse the colors better. my last thought to create the final visual (first image linked) was to somehow mask the foot shape over the rectangular shape which would make the outside of the foot just blank/white and keep the pressure map colors inside the outline of the foot. how could i mask the foot shape if there is a better tool out there i am open to suggestions or just a nudge to a resource i can use. i appreciate all help!,python | |
| the truth value of an array with more than one element is ambiguous. use a.any() or a.all() i wrote code that returns this in the console: <blockquote> the truth value of an array with more than one element is ambiguous. use a.any() or a.all(). </blockquote> this is my code. <pre><code>import numpy as np import matplotlib.pyplot as plt lambd= np.linspace(0.0 15000.0 100) #lambda in angstroms alpha0=1.0449*10.0**(-26.0) #for lambda in angstroms r=1.0968*10.0**(-3.0) #angstroms^-1 def g_bf(lambd n): return 1.0-((0.3456/(lambd*r)**(1./3.))*((lambd*r / (n**2.0))- (0.5))) def alpha_bf(lambd n): lamb_0=912.0 #angstroms if lambd >= lamb_0: return 0.0 else: return alpha0*g_bf(lambd n)*((lambd**3.0)/(n**5.0)) a_bf= alpha_bf(lambd 1.0) plt.plot(lambd a_bf) </code></pre> what do i have to do,python | |
| is it bad form to treat argument names the same as variable names in javascript whenever i define a function in javascript i frequently name the place holder what i would like them to be. this leads to the problem that declaring those arguments as variables in the function makes them have the same name. is this a problem (because i do not often see it done). for example: <pre><code>var words = hello there ; var talk = function talk (words) { // realizing this does nothing i am leaving it in because other answers refer to it. var words = words; //i suppose this could also be this.words = words console.log(words); } talk(words); //to log hello there </code></pre> this is an extreme example but in many instances it seems like this would make more sense than using similar and not quite correct words (like <code>var letters = words</code>),javascript | |
| delete a record from a file using python i m creating a very basic banking record program in python 3.6. i created a file accounts.txt in which users can add their accounts -- name account number balance. after they add the file looks something like this: 213123 |dgfdg |21312.0<br> 123124 |vxcvx |213123.0<br> 123123 |sfsdf |123123.0 column represents account no. name balance respectively. i want to delete a particular record from this file. i take account no. as input of the record to be deleted. i just can t figure how to do it. ex- if the user enters 213123 the entire record should be deleted. a separate problem in the same case- when i ask the user to input their account number name balance i want to scan accounts.txt and if the account number already exists produce an error instead of creating a new record. avoid duplicate account numbers. i m new to python and this is a basic program so please don t suggest using mysql or mariadb. :d <pre><code>def account_set(): accno = int(input( enter account number \t )) name = str(input( enter name \t )) balance = float(input( enter balance \t )) return accno name balance def new(): account = open( accounts.txt a+ ) info = account_set() account.seek(0 2) for items in info: account.write( {0:<25} {1} .format(items | )) account.write( \n ) account.close() def delete(): accno = (input( enter account number to delete )) file = open( accounts.txt r+ ) print( please choose any one of the following options: \n \n 1. new account \n 2. delete account \n 3. exit ) x = true while x: user_input = int(input( enter an option \t )) if user_input == 1: new() elif user_input == 2: delete() elif user_input == 3: print( thank you for banking with us. ) x = false else: print( invalid choice ) </code></pre>,python | |
| how can we implement pagecurl animation in tableview ha ii every body how can we implement a page-curl in tableview i have a tableview which contains pages of the book and i have implement the touch events in the tableview cell for next chapter and previous chapter left-swipe for next and right-swipe for previous chapter when we swipe the tableview it reloads the next chapter and previous chapter content it really works well but i want it in a page-curl animation when the user swipe left or right tableview loads content with a page-curl animation.is that possible to do in a tableview cell my code for left and right swipe for chapter navigation as follows. <pre><code>-(void) handleswipegesture:(uiswipegesturerecognizer*)recognizer { if(![delegate.selectedchapter isequaltostring:[nsstring stringwithformat:@ %d [dbhandler mnumberofchaptersinbook:delegate.selectedbook]]]) { // if the currentchapter is the last then do nothing delegate.selectedchapter = [nsstring stringwithformat:@ %d [delegate.selectedchapter intvalue] + 1]; [delegate reloadverses]; [self resetreadviewtoverse:1]; [table removegesturerecognizer:recognizer]; } if (recognizer.state==uigesturerecognizerstatebegan ) { self.table.scrollenabled = no; } else if(recognizer.state==uigesturerecognizerstateended) { self.table.scrollenabled = yes; } return; } -(void) handleswipegestureleft:(uiswipegesturerecognizer*)recognizer { if(![delegate.selectedchapter isequaltostring:@ 1 ]) { delegate.selectedchapter = [nsstring stringwithformat:@ %d [delegate.selectedchapter intvalue] - 1]; [delegate reloadverses]; [self resetreadviewtoverse:1]; [table removegesturerecognizer:recognizer]; } if (recognizer.state==uigesturerecognizerstatebegan ) { self.table.scrollenabled = no; } else if(recognizer.state==uigesturerecognizerstateended) { self.table.scrollenabled = yes; } return; } </code></pre> thanks in advance.,iphone | |
| white space in iphone i am optimizing my online portfolio for the iphone. i am using the following media queries for both portrait and landscape orientations. 1)@media screen and (orientation:portrait) {} 2)@media screen and (orientation:landscape) {} the issue i have is that when i rotate my iphone from portrait to landscape or vice versa the design gets messed up adding a lot of white space between elements only if i refresh the browser then the design is fine. when first building the style sheet for the media query in portrait mode i came across a lot of white space and i had to use few negative margins to bring the elements back to their original position... i am assuming there is already something wrong there.. i hope this is enough for you guys to understand my issue. thanks so much,iphone | |
| why python s function open automatically creates a file when the second parameter is w when i use this code it will automatically creates a file.why where can i see the source code of this function <pre><code>with open( e:/test.txt w ) as f: for i in range(10): f.write( abc\n ) f.close() </code></pre>,python | |
| getting a python library listed in easy_setup and pip every python developer is familiar with easy_install and setup tools. if i want to install a library that s well known all i have to do is this: sudo easy_setup install django now i have a library that i ve written and would love to see widespread. how do you get added to this library list,python | |
| dynamic function call for prototype functions i have to make a bunch of <code>.prototype</code> declarations within a function and would like to add some <em>dynamism</em> to reduce the size of my code. here is some pseudo code for what i need to do: <pre><code>window.myclass = function(){ var object_type = getobjecttype(); if (object_type === nodelist ) { nodelist.prototype.func_name = function(){ //some code } } if (object_type === htmlcollection ) { htmlcollection.prototype.func_name = function(){ //the same code again } } } </code></pre> i would like to change this so i can make these declarations dynamic kind of like this: <pre><code>window.myclass = function(){ var object_type = getobjecttype(); object_type.prototype.func_name = function(){ //some code } } </code></pre> is this possible <strong>edit</strong> i forgot to mention that i would love to keep all my functions within the scope of <code>window.myclass</code>,javascript | |
| anonymous function definition in modal.js hey guys i was just going through the scource of modal.js and have a few questions about javascript and also the coding convention used in the modal.js plugin <a href= https://github.com/twbs/bootstrap/blob/master/js/modal.js rel= nofollow >modal.js plugin</a>. well if you see <a href= https://github.com/twbs/bootstrap/blob/master/js/modal.js#l76 rel= nofollow >line 76</a> notice how the ananimous function starts : <pre><code>this.backdrop(function () { </code></pre> i am new to javascript and i have rarely seen something like that why not just do the following : <pre><code>(function () { </code></pre> also where is the <code>this.backdrop</code> defined i see <code>this.$backdrop</code> defined but not <code>this.backdrop</code> secoundly i have a question which should be relatively easy but i just wanted to confirm to make sure even though i ran a few tests the question is what this points to when using prototype . look at the below skeleton code : <pre><code>+function ($) { use strict ; // modal class definition // ====================== var modal = function (element options) { this.options w = options this.$body = $(document.body) this.$element = $(element) this.$backdrop = this.isshown = null this.scrollbarwidth = 0 if (this.options.remote) { this.$element .find( .modal-content ) .load(this.options.remote $.proxy(function () { this.$element.trigger( loaded.bs.modal ) } this)) } } modal.version = 3.3.2 modal.transition_duration = 300 modal.backdrop_transition_duration = 150 modal.defaults = { backdrop: true keyboard: true show: true } modal.prototype.checkscrollbar = function () { } modal.prototype.setscrollbar = function () { } modal.prototype.resetscrollbar = function () { } modal.prototype.measurescrollbar = function () { } }(jquery); </code></pre> what will this refer to inside say for eg. modal.prototype.measurescrollbar modal or modal.prototype.setscrollbar also if i console.log this i get object { options: object $body: object $element: object isshown: false $backdrop: null scrollbarwidth: 17 bodyisoverflowing: false } but why don t i get modal.prototype.setscrollbar modal.prototype.resetscrollbar modal.prototype.measurescrollbar even though they are part of modal. please note that my main difficulty is about the coding convention of <code>this.backdrop(function() { })</code> i would appreciate any help. thank you. alexander .,javascript | |
| checking whether the service is down <pre><code>var model = function() { function checkstatus(){ jsonclient.onload = function() { }; jsonclient.onerror = function(e) { }; } } </code></pre> i know the error handler would be called when my request parameter is wrong or may be even if the service is down too. but is there any way i can check my service is down at first place before sending the data.,javascript | |
| python - how to read path file/folder from server using python how might one read a file s path from a remote server this is a bit more clear to me on my local pc.,python | |
| document.write( <scr + ipt src= vs <script src= apart from allowing you insert js variables into a script tag when written like <code>document.write( <scr + ipt src=</code> what are the pros/cons of this vs a normal <code><script src=></code> tag i m mainly asking with regard to speed but interested in the whole story. thanks denis,javascript | |
| add values to existing entry in dictionary i am starting out with a list like this <pre><code>lists = [[ test 1 -1 0 -1 ] [ test2 0 1 0 -1 ] </code></pre> what i want to end up with is <code>{ test : [1 -1 0 -1] test2 : [0 1 0 -1]}</code> so basically i need to create a dictionary out of the lists. the values of the dictionary need to be integers and not strings. this is my non-working code: <pre><code>endresult = dict() for x in lists: for y in x: endresult.update({x[0]:int(y)}) </code></pre>,python | |
| trying to write a program that simulates a craps using specific rules this is the question: in the game of craps a pass line bet proceeds as follows: two six-sided dice are rolled; the first roll of the dice in a craps round is called the come out roll. a come out roll of 7 or 11 automatically wins and a come out roll of 2 3 or 12 automatically loses. if 4 5 6 8 9 or 10 is rolled on the come out roll that number becomes the point . the player keeps rolling the dice until either 7 or the point is rolled. if the point is rolled first then the player wins the bet. if a 7 is rolled first then the player loses write a program that simulates a craps using these rules without human input. instead of asking for a wager the program should calculate whether the player would win or lose. the programs should simulate rolling the two dice and calculate the sum. add a loop so that program plays several times. add counters that count how many times the player wins and how many times the player loses. at the end of playing the games several times computer the probability of wining ( wins/sins+losses)) and output the value and this is what i did so far <pre><code> import java.util.scanner; public class partb1 { public static void main(string[] args) { int side1=1 side2=1 roll=1 lose=0 win=0 point=0 answer; double winprob loseprob; side1= 1+(int)(math.random() *6); side2= 1+(int)(math.random() *6); scanner kb = new scanner(system.in); do { roll = side1+side2; if ( roll == 7 || roll == 11) { system.out.println( come out wins ); winprob = win + 1; } else if ( roll ==2 || roll ==3 || roll ==12) { system.out.println( come out loses ); loseprob = lose +1; } else { side1= 1+(int)(math.random() *6); side2= 1+(int)(math.random() *6); point = roll; roll = side1+side2; system.out.println( the point ); system.out.println( you won the bet ); winprob = win + 1; while(roll != point || roll!= 7); side1= 1+(int)(math.random() *6); side2= 1+(int)(math.random() *6); roll = side1+side2; } if( roll ==7) { system.out.println( you lost the bet ); answer = kb.nextint(); } else if (roll == point) { system.out.println(win); } while(true) { system.out.println( do you want to play again 0 for no any number for yes ); if (answer ==0) { break; } winprob = (40/(40+60)); system.out.println( the probability of wining is + winprob); loseprob = (40/(40-60)); system.out.println( the probability of losing is + loseprob); } } } } </code></pre> i keep getting this error <pre><code> 1 error found: file: h:\assignment 3\partb1.java [line: 84] error: syntax error insert while ( expression ) ; to complete dostatement </code></pre> i m not sure whether i missed something or did something wrong any clue,java | |
| when i have typed in this code nothing happens <pre><code>def print_menu(): print( 1. print phone numbers ) print( 2. add a phone number ) print( 3. remove a phone number ) print( 4. lookup a phone number ) print( 5. quit ) print() </code></pre> i type in this code and nothing happens it just shows nothing. i dont really know whats wrong with the code can someone help please!!!,python | |
| launch image on main view controller background stretched i want to display the launching image(640x960) of my app on my main view controller. i added uiimageview to the view and set the image to be the launch image. however the image is stretched. i want to be able to make the top 40px of the image to be underneath the status bar so that no streching will be needed. in other words i want to make the image fill up the whole iphone screen and that the status bar will simply be on top of the image. (i think this is what happens when the launch image is initially shown when the app launches.) how can this be done another option is to use photoshop to create the image by cutting off 40 pixels in height of the image so it will be 640x920 and then there wouldn t be any problem but i don t want to create another image as i think there should be a way to do this from code. edit: found the solution read my answer below.,iphone | |
| python newline whitespace how to print with out a whitespace <pre><code>a= python b= learn python print(a \n b) </code></pre> output : <pre><code>python learn python </code></pre> why output newline has a whitespace how to avoid this i don t need whitespace. my code has anything wrong please help me python 3.6.0,python | |
| how to convert a long format date to human readable format i have a time stamp in the format <code>20140110143000</code> i need to convert it into a human readble format. i am using the following code: <pre><code>time.strftime( %y-%m-%d %h:%m:%s time.localtime(20140110143000)) </code></pre> but it is giving the following error: <pre><code>traceback (most recent call last): file <pyshell#6> line 1 in <module> time.strftime( %y-%m-%d %h:%m:%s time.localtime(20140110143000)) valueerror: (22 invalid argument ) </code></pre> can any body please help me out,python | |
| add html within textnode in javascript <pre><code>var node = document.createtextnode( hello world ); document.getelementbyid( main ).appendchild(node); </code></pre> i also want a <code><br /></code> between each hello world <code>createtextnode</code> is not allowing any html. any work around,javascript | |
| update a tabview from within another tab i am having trouble with the tabbar:didselectitem: in my app... i have 4 tabs and 1 of them is a settings tab that updates a plist file with the settings on save. what i want to do is to run an action when another tabbar item is selected so i can update the view with the appropriate settings. i just can t get this to work. can anyone please show me an example on how to use the tabbar:didselectitem: in this way or maybe another way to do it thanks...,iphone | |
| javascript: the event object why can the event object have no properties i get this error in mozilla firefox while in ie and opera all is well. please follow this link to see the problem: <i>here was the link</i>,javascript | |
| check if div there after click remove it if it was there i have a javascript which is create a type of accordion i would like to open <code>div</code>s on click and then close them on a second click. i could done that but then i don t know where to insert the removing code <code>el.classlist.remove( opendiv );</code> to close all tabs that might was open and the only tab which should be open is the clicked one. here is the javascript code: <pre><code>var el = document.getelementsbyclassname( applications ); var i; var action = 1; function addhandler(el) { el.addeventlistener( click function() { if ( action == 1 ) { el.classlist.add( opendiv ); action = 2; } else { el.classlist.remove( opendiv ); action = 1; } }); } for (i = 0; i < el.length; i++) { addhandler(el[i]); } </code></pre> i also created a <a href= http://codepen.io/anon/pen/lgggez rel= nofollow >demo</a>,javascript | |
| document.getelementsbyname returning undefined and it cannot find the value i have the following code <pre><code><!doctype html> <html> <head> <script> var object = document.getelementsbyname( test ); console.log(object[0]); </script> </head> <input type= hidden name= test value= hi /> </body> </html> </code></pre> i need it to log hi though it is failing it says that index [0] is undefined even though when only console logging the object i can see it perfectly along with the value. i tried using it without an index and it failed obviously because it is a nodelist i can t see exactly what is wrong and i tried to fix it a lot. i m sure that index 0 is there and that there is value though i cannot access it..,javascript | |
| best way to show multiple images fetched from api in uiscrollview at runtime in iphone hey i am working on iphone application where i am fetching data from an api xml format.my data contains thousands of images.i am using nsxml parsing and asihttp library to show data in uiscrollview . but it is very time consuming and also sometimes i have to make multiple calls to api in single page. so please anyone suggest me best way to parse data in background or asynchrounasly and show it in chuncks in uiscrollview please help me with the code. thanking you in advance...,iphone | |
| data structure to store table data in java what is the best data structure in java to store data in table format i.e with column headers and a set of rows. the data consists of less than 10 rows. iam dealing with dynamic data. there ca be any number of columns.,java | |
| hide divs from same class then show only one div of the same class by id i want to have only one <code><div></code> showing at a time according to a dropdown menu. i can show the divs fine but i cant hide others when the dropdown menu is changed. i made a class so i can hide <code>getelementbyclassname</code> then show only the <code>getelementbyid</code> i want to show. but nothing is showing up now. here s my jsfiddle - <a href= http://jsfiddle.net/tuliobbs/p732m/ rel= nofollow >http://jsfiddle.net/tuliobbs/p732m/</a> <pre><code>function altera() { document.getelementsbyclassname( nao ).style.display= none ; var mylist=document.getelementbyid( cidade ); var cid=mylist.options[mylist.selectedindex].value; document.getelementbyid(cid).style.display= block ; } </code></pre>,javascript | |
| how do you host your own egg repository say you re on a team that s maintaining a lot of internal python libraries(eggs) and for whatever reason uploading them to pypi is not an option. how could you host the libraries(eggs) so that easy_install can still work for the members of your team basically it would be cool if this worked.... <pre><code>(someproj)uberdev@hackmo:~$ easy_install myproprietary.lib-dev user: uberdev password:... fetching...... searching for myproprietary.lib-dev reading http://dev.mycompany.corp/myproprietary.lib-dev reading http://dev.mycompany.corp reading http://dev.mycompany.corp/dist best match: myproprietary.lib-dev downloading http://dev.mycompany.corp/dist/myproprietary.lib-dev </code></pre> i suppose there s some sort of servers out there that can be installed but i d appreciate some guidance from the experts on this matter. thanks,python | |
| how to release memory created by cgcontextdrawpdfpage this is ipad magazine application. we need to read pdf and convert to png image for thumnail. after reading pdf before conversion which is calling cgcontextdrawpdfpage the memory goes up quickly and never free up till crash. i tried in many ways but it does not work. i really appreciate if anyone could help. cgcontextdrawpdfpage(context apage); //this is the memory killer the following is the complete code: -(uiimage *)image :(cgpdfpageref)apage rect:(cgrect)arect { cgrect pdfcropbox = cgrectintegral(cgpdfpagegetboxrect(apage kcgpdfcropbox)); <pre><code>if ((float)pdfcropbox.size.width/(float)pdfcropbox.size.height > (float)arect.size.width/(float)arect.size.height) //pdf width too big { arect.size.height = arect.size.width * pdfcropbox.size.height / pdfcropbox.size.width; } //cgrect pdfcropbox = arect; cgcolorspaceref colorspace = cgcolorspacecreatedevicergb(); cgcontextref context = cgbitmapcontextcreate(null arect.size.width arect.size.height 8 (int)arect.size.width * 4 colorspace kcgimagealphapremultipliedlast | kcgbitmapbyteorder32big); cgcolorspacerelease(colorspace); colorspace = nil; cgpdfpageretain(apage); cgaffinetransform pdftransform = cgpdfpagegetdrawingtransform(apage kcgpdfcropbox cgrectmake(0 0 arect.size.width arect.size.height) 0 true); cgcontextsavegstate(context); cgcontextconcatctm(context pdftransform); cgcontextdrawpdfpage(context apage); cgpdfpagerelease (apage); apage = nil; cgcontextrestoregstate(context); cgimageref image = cgbitmapcontextcreateimage(context); uiimage *resultingimage = [uiimage imagewithcgimage:image]; cgcontextclearrect(context arect); cgcontextclearrect(context pdfcropbox); cgcontextrelease(context); cgimagerelease(image); context = nil; nslog(@ colorspace :%d apage :%d context :%d [colorspace retaincount] [apage retaincount] [context retaincount]); return resultingimage; </code></pre> },iphone | |
| what is going on in this code (python 2.7) <pre><code>import math def is_prime(n): if n % 2 == 0 and n > 2: return false return all(n % i for i in range(3 int(math.sqrt(n)) + 1 2)) </code></pre> i received an assignment where i had to find the sum of all prime numbers up to 2 million and the code i wrote originally took way too long to run so the teacher gave me this algorithm to check if the number is prime. however i don t quite seem to get what s going on in the return all statement and what it has to do with prime numbers,python | |
| java: creating objects with variable type and calling methods on an object with variable name i have a hashmap with keys of type string and values of type arraylist. it looks something like this: <pre><code>key: .avi value: {new videoresource(var) videoresources } </code></pre> i want to do the following things: 1. create a new variable with the same type as that of the one found in the hashmap. this time i would want to create a new videoresource but it could be anything (audioresource imageresource...) depending on what s inside the hashmap. the types always take the same parameter var however. so i want to do: <pre><code>someresource resource = new someresource(var); </code></pre> where someresource is decided by the type of some object. 2. call a method on an object that is previously instantiated with the name given by <pre><code>string objectname = hashmap.get(key).get(1); </code></pre> the object will always have the method and the method being called will always have the same name. so i want to do: <pre><code>objectname.methodname(); </code></pre> where objectname is decided by some string. how can i achieve this edit the context is this: for an assignment i ve been tasked to refactor a bit of code in the open-source project freecol. the method i am refactoring is createresource shown below. the problem with it is that in addition to the very repetitive if-statements it violates the open/closed principle. we want it to be open for extension i.e. adding a new extension type (.avi etc.) but closed for modification i.e. you shouldn t have to modify a whole bunch of code to do so. the method looks like this: <pre><code>public static void createresource(uri uri resourcesink output) { if(findresource(uri output)) return; try { if ( urn .equals(uri.getscheme())) { if (uri.getschemespecificpart().startswith(colorresource.scheme)) { colorresource cr = new colorresource(uri); output.add(cr); colorresources.put(uri new weakreference<>(cr)); } else if (uri.getschemespecificpart().startswith(fontresource.scheme)) { fontresource fr = new fontresource(uri); output.add(fr); fontresources.put(uri new weakreference<>(fr)); } } else if (uri.getpath().endswith( \ ) && uri.getpath().lastindexof( uri.getpath().length()-1) >= 0) { stringresource sr = new stringresource(uri); output.add(sr); stringresources.put(uri new weakreference<>(sr)); } else if (uri.getpath().endswith( .faf )) { fafileresource far = new fafileresource(uri); output.add(far); fafresources.put(uri new weakreference<>(far)); } else if (uri.getpath().endswith( .sza )) { szaresource szr = new szaresource(uri); output.add(szr); szaresources.put(uri new weakreference<>(szr)); } else if (uri.getpath().endswith( .ttf )) { fontresource fr = new fontresource(uri); output.add(fr); fontresources.put(uri new weakreference<>(fr)); } else if (uri.getpath().endswith( .wav )) { audioresource ar = new audioresource(uri); output.add(ar); audioresources.put(uri new weakreference<>(ar)); } else if (uri.getpath().endswith( .ogg )) { if (uri.getpath().endswith( .video.ogg )) { videoresource vr = new videoresource(uri); output.add(vr); videoresources.put(uri new weakreference<>(vr)); } else { audioresource ar = new audioresource(uri); output.add(ar); audioresources.put(uri new weakreference<>(ar)); } } else { imageresource ir = new imageresource(uri); output.add(ir); imageresources.put(uri new weakreference<>(ir)); } catch (exception e) { logger.log(level.warning failed to create resource with uri: + uri e); } } </code></pre> so what i want to do is to get rid of all the else ifs that handle the file extensions and replace them with a single call to a method assignresource that creates the right resource <pre><code>someresource resource = new someresource(uri); </code></pre> adds it to the output <pre><code>output.add(resource); </code></pre> and puts it in the right weakhashmap <pre><code>someresource.put(uri new weakreference<>(resource)); </code></pre> these hashmaps are declared as following: <pre><code>private static final map<uri weakreference<colorresource>> colorresources = new weakhashmap<>(); private static final map<uri weakreference<fontresource>> fontresources = new weakhashmap<>(); private static final map<uri weakreference<stringresource>> stringresources = new weakhashmap<>(); private static final map<uri weakreference<fafileresource>> fafresources = new weakhashmap<>(); private static final map<uri weakreference<szaresource>> szaresources = new weakhashmap<>(); private static final map<uri weakreference<videoresource>> videoresources = new weakhashmap<>(); private static final map<uri weakreference<imageresource>> imageresources = new weakhashmap<>(); </code></pre> i have code that extracts the file extension from the uri and puts it as a key along with the associated object (i.e. videoresource()) and the name of the object upon with we want to invoke the put() method (i.e. videoresources ) as values. the idea is that if you would add a new extension type you just have to do one function call to my method addresource: <pre><code>addresource(resourcemap .ogg new videoresource(uri) videoresources ); </code></pre> that adds these parameters to the map of file extensions it can handle. instead of all the else if statements a single call to a method assignresource <pre><code>assignresource(uri resourcemap); </code></pre> would be made. so the problem i faced was how to create a new object of a type that matches that of the one found in my hashmap and then invoking method put() on the right weakhashmap (videoresources etc.). edit more questions. the line <code>output.add(resource);</code> gives an error because resource is a resource and not one of the subtypes. the next line <code>resources.add(uri resource);</code> complains about type safety that references should be parameterized. i changed the interface to your second suggested generic one. an example of what a resources implementation now looks like is this: <pre><code>class stringresources implements resources<stringresource> { private final map<uri weakreference<resource>> resources = new weakhashmap<>(); @override public boolean matches(uri uri) { return uri.getpath().endswith( \ ) && uri.getpath().lastindexof( uri.getpath().length() - 1) >= 0; } @override public stringresource from(uri uri) { return new stringresource(uri); } @override public void add(uri uri stringresource resource) { resources.put(uri new weakreference<>(resource)); } } </code></pre> is this how you meant they should look in that case how should we change the lines <pre><code>resource resource = resources.from(uri); output.add(resource); resources.add(uri resource); </code></pre> so that the resource is of the right subtype when we call output.add,java | |
| java incomparable type when using charat() <pre><code> public void keypressed(keyevent e) { if(e.getkeycode()==keyevent.vk_enter){ input.seteditable(false); string quote=input.gettext(); input.settext( ); addtext( you:\t +quote); quote=quote.trim(); while( quote.charat(quote.length()-1)== ! || quote.charat(quote.length()-1)== || quote.charat(quote.length()-1)== . ){ quote=quote.substring(0 quote.length()-1); } quote=quote.trim(); } </code></pre> it s giving me incomparable type on quote.charat and i need to check the last character of the string if he is a punctuation,java | |
| js full page slide navigate with keypress i m building a sort of presentation using intersectionobserver api. and i want to be able to go up/down the slides using the keyboard arrow keys. so far i have managed to make it work on click event. it s easier because i can just ask the intersectionobserver to go to the next sibling on click. but on key press i find the implementation a bit more tricky. i have a reduced test case on codepen <a href= https://codepen.io/umbriel/pen/ppqlxx rel= nofollow noreferrer >https://codepen.io/umbriel/pen/ppqlxx</a> <pre><code>function iohandler(entries) { for (let entry of entries) { entry.target.style.opacity = entry.intersectionratio.tofixed(2); entry.target.addeventlistener( click function(e) { if (this.nextelementsibling !== null) { this.nextelementsibling.scrollintoview({ behavior : smooth }); } } true); if (entry.intersectionratio > .5) { entry.target.classlist.add( active ) } else { entry.target.classlist.remove( active ) } } } </code></pre> thanks!,javascript | |
| python printed variable mismatch this is weird this is a piece of my my code: <pre><code> def vert(vert): c=[] #print b for i in range(3): c.append(list(vert[i])) e=d=c s=[] print c by={0: (1 ) 1: (0 2) 2: (1 )} boolean=false for i in range(3): for j in range(3): if c[i][j]==0: boolean=true print i j for k in by[j]: d[i][j] d[i][k]=d[i][k] d[i][j] print d s+=d d[i][j] d[i][k]=d[i][k] d[i][j] for l in by[i]: e[i][j] e[l][j]=e[l][j] e[i][j] print e s+=e e[i][j] e[l][j]=e[l][j] e[i][j] break; if boolean : print s break; vert(vertices[0]) </code></pre> the output is: <pre><code>[[8 1 0] [5 2 6] [7 3 4]] 0 2 [[8 0 1] [5 2 6] [7 3 4]] #d [[8 1 6] [5 2 0] [7 3 4]] #e [[8 1 0] [5 2 6] [7 3 4] [8 1 0] [5 2 6] [7 3 4]] #s </code></pre> this is what i don t think should happen i add e and d to s and they are added in a different form that i don t want it to be can anyone see what is going on what i want is e and d be in the form they are printed. but there was no way i could see how to add them to s in the right form.,python | |
| get the time elapsed between two timestamps and convert it to date i want to get the time elapsed between two timestamps and then convert the difference to human readble time (hh:mm:ss) i do it like this (just example of values) <pre><code>var difference = 1490265243 - 1490264952 ; </code></pre> while <strong>1490264952</strong> is <code>23/3/2017 11:29:12</code> and <strong>1490265243</strong> is <code>23/3/2017 11:34:03</code> i get difference equal to <code>291</code> then when i convert it to date <pre><code>var date = new date(difference*1000); </code></pre> i get <code>01:04:51</code> while the difference is just <code>00:04:51</code> i want to get the real time elapsed how to solve this issue,javascript | |
| what does this javascript mean src is very strange looking sorry for the bad heading but i couldnt explain it better. im trying to make a trackback on a webshop that should allow me to send the order id and the amount back to a page i control. the only way i can get anything on the confirmation page is by javascript. i looked at one of the examples that was there to begin with (another affiliate) and his javascript looks like this: <pre><code><script language= javascript src= http://dev.domain.com/-119/=125123 type= text/javascript ></script> </code></pre> i have no clue of what this means could anyone point me in the right direkction please,javascript | |
| python error : rpcproxy object is not iterable i am new to python. i have python 2.6 installed on a linux machine. (centos - cloudera vm) when i try this in idle: <pre><code>#!/usr/bin/python import sys for line in sys.stdin: print (line) error : rpcproxy object is not iterable </code></pre>,python | |
| a question regarding to the state maintainance if i have total 10 views such as from 1 to 2 2 to 3 and same as upto 10 if i go to 5 th view then i press home button and then i go to another application and then after doing some task i go to home button and then i press my application my 1 st view opens but i want to open my 5 th view plzzzzzzzzz tell me solution for this waiting fo reply,iphone | |
| python script to write exception.keyerror to text file <h2>i have nested dictionary as following:</h2> <pre><code>dict1 | level 1-1 | level 2-1-1 | level 3-1-1-1 | core [1] | core [2] | core [3] | level 3-1-1-2 | core [1] | core [2] | level 2-1-2 | level 3-1-2-1 | core [1] | core [2] | level 3-1-2-2 | core [1] | level 1-2 | level 2-2-1 | level 3-2-1-1 | core [1] | level 3-2-1-2 | core [1] | level 2-2-2 | level 3-2-2-1 | core [1] | core [2] | level 3-2-2-2 | core [1] </code></pre> <h2> ..........</h2> level 1 would be my <strong>key</strong> level 2 would be my <strong>key1</strong> level 3 would be my <strong>key2</strong> core would be my <strong>value2</strong> for key2 core and level 3 would be my <strong>value1</strong> for key1 core level 3 and level 2 would be my <strong>value</strong> for key when the script was executed there were some errors specifically keyerror of <strong>key2</strong>. i came up with couple lines to put this exception to a log.txt file. ie: <pre><code>except keyerror: save_to_log (time_stamp sys.exc_info()[0] sys.exc_info()[1]) continue </code></pre> however it can only output the <strong>key2</strong> information. i would like to be able to output the <strong>key</strong> information in respect to the <strong>key2</strong> so that i can easily identify the fault in the original file. is this possible in python any suggestion is greatly appreciated. thanks in advance.,python | |
| how to pass class name in function arguments i want to create a function that will perform some operation(most time occurring) i created function like following <pre><code>public void dosth() { //logic classname.staticmethod(); //logic } </code></pre> in my application there are many times this function will be called. only the particular line will be change. i decided to give a common function. now my question is: how do i pass the classname in function arguments so that function body use it dynamically thanks,java | |
| guidelines for building web pages specifically for iphone and ipod touch i need to build a couple of pages that will only be ever viewed from either an iphone or an itouch. are there guidelines or tutorials for building such pages,iphone | |
| javascript: having a var keyword before the this keyword philosophically why can t i declare a new variable in js by using this sort of code: <pre><code>var this.blah = hello </code></pre> i see that it hangs upon <em>this</em> being a variable that has a meaning already but -exactly- how what about corner cases and constructor functions,javascript | |
| javascript hardware access i know difference between browser js and nodejs. i m looking at this trezor.io bitcoin hardware wallet. how are they managing to send information from their drive to javascript on website only trough usb port (device has no wifi or bluetooth),javascript | |
| classobj object is not subscriptable i get the following error while calling a class-method using <code>self.methodname()</code> from inside another class method. <pre><code>typeerror: classobj object is not subscriptable </code></pre> what could the problem be other methods are running fine except this one. code details are <pre><code>class loadbalancer: def __init__(self): #somecode def upload_config(self loadbalancer_doc) #some code def create_loadbalancer(self loadbalancer_doc) self.upload_config(loadbalancer_doc)#trace back shows here i get this error </code></pre> here is the <code>upload_config</code> method: <pre><code>def upload_config(self loadbalancer_doc): no_of_ports=len(loadbalancer_doc[ frontend_ports ]) loadbalancer_config= for i in range(0 no_of_ports): servers= for server_uuid in loadbalancer_doc[ backend_servers ]: ip= 192.168.1.1 server_id=self.vms_collection.find_one({ _id :server_uuid} { id :1})[ id ] servers=servers+ \tserver +server_id+ +ip+ : +loadbalancer_doc[ backend_ports ][i]\ + check port +loadbalancer_doc[ check_port ]+ inter +loadbalancer_doc[ check_interval ]+ \n loadbalancer_config=loadbalancer_config+ listen +loadbalancer_doc[ _id ]+\ str(i)+ \n\tbind +loadbalancer_doc[ frontend_ip ]+ : +loadbalancer_doc[ frontend_ports ][i]\ + \n\toption +loadbalancer_doc[ check_protocol ]+ +loadbalancer_doc[ check_protocol_param ]+ \n +servers+ \n with open(local_dir+loadbalancer_doc[ _id ] w ) as f: f.write(loadbalancer_config) try: filenames=self.loadbalancer_collection.find({ destroyed_time :0}) except exception err: os.remove(local_dir+loadbalancer[ _id ]) raise(err) if not(filenames): os.remove(local_dir+loadbalancer[ _id ]) raise exception( no cursor returned ) configfiles= for file in filenames: configfiles=configfiles+ -f +remote_config_file+file[ _id ] try: self._put_file(local_dir+loadbalancer_doc[ _id ] remote_config_file+loadbalancer_doc[ _id ]) except exception err: os.remove(local_dir+loadbalancer[ _id ]) raise exception( copying config file to remote server failed +str(err)) try: self._exec_command( haproxy +\ -f /etc/haproxy/haproxy.cfg +configfiles+\ -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid) ) except exception err: os.remove(local_dir+loadbalancer[ _id ]) #command_op=commands.getstatusoutput( ssh -i +ssh_keyfile+ +ssh_login+ rm +remote_config_file+loadbalancer_doc[ _id ]) raise exception( haproxy restart failed err: +str(err)) </code></pre>,python | |
| how to sort treemap in descending order based on the value <pre><code>treemap<string integer> map = new treemap<>(); map.put( apple 5); map.put( orange 8); map.put( pear 3); map.put( watermelon 10); map.put( melon 1337); </code></pre> how can i sort all the values in descending order and print them,java | |
| set div height to window.innerheight in javascript i wanted to set the div height of element to innerheight of the browser. i dont want css or jquery to take place here. it has to change its height dynamically with window resize. so i made this script and its not working as i thought. here is my code: <pre><code>window.onload= window.onresize=function(){ var left = document.getelementbyid( left ); var height = window.innerheight; left.style.height = height +( px ) ; } </code></pre> can someone correct my code and make it work. any help will be appreciated. thank you. <a href= http://jsfiddle.net/bpsfv/ rel= nofollow >jsfiddle</a> you can add <code>height:500px;</code> to the left element. and see what i want. but i need to fit the browser height. <strong>solved</strong> <pre><code>//<![cdata[ function resize() { var heights = window.innerheight; document.getelementbyid( left ).style.height = heights -50 + px ; } resize(); window.onresize = function() { resize(); }; //]]> </code></pre> thanks to thirumalai murugan s answer.,javascript | |
| will x == (x/10)*10; be optimised away context : we have business requirement that a value is reported at 3 or 4 digit string. if the string is 3 digits it s value is actually *10. e.g. 123 represents 1230 where as 4567 represents 4567. when converting back from a stored integer to the string the above code is seen as one way to determine this. the question we have is would the optimizer remove this code for x (integer and float). specifically looking at java but the follow on question is how would other languages behave the obvious other way to do this is use mod (x%10).,java | |
| specifying an item separator in python i am new to programming in python and using 2.7.5 version. i am running the following python statement <pre><code>monthly_pay = 5000.0 annual_pay = 12*monthly_pay print your annual pay is $ format(annual_pay .2f ) </code></pre> when i run it there is a space between $ sign and the amount 60 000 and i don t want that space so i have tried to use <pre><code>monthly_pay = 5000.0 annual_pay = 12*monthly_pay print ( your annual pay is $ format(annual_pay .2f ) sep= ) </code></pre> but shows an error on idle. i don t understand why. can anybody help also i tried similar statements like <code>print( one two three sep= )</code> but again as above it shows me an error,python | |
| modifying an parameter any of url using javascript i want to change any parameter is available from a url using javascript ex: <a href= http://demo.com/admin/ admin-page=faq&kw=123 rel= nofollow >http://demo.com/admin/ admin-page=faq&kw=123</a> => <a href= http://demo.com/admin/ admin-page=faq&kw=123456 rel= nofollow >http://demo.com/admin/ admin-page=faq&kw=123456</a> i have tried several ways but have not achieved the desired results you can help me solve it,javascript | |
| how to get next n element from array need a function which return next n elements from given array with given offset but when offset larger then array length it must return elements at the beginning of array. <strong>interface:</strong><br> <code>slice2(array chunk offset);</code> <strong>examples:</strong> <code>var array = [1 2 3 4 5];</code><br> <code>slice2(array 2 2)</code> output: [3 4]<br> <code>slice2(array 2 4)</code> output: [5 1]<br> <code>slice2(array 3 4)</code> output: [5 1 2],javascript | |
| positional argument v.s. keyword argument based on <a href= http://infohost.nmt.edu/tcc/help/pubs/python/web/def.html >this</a> <blockquote> a positional argument is a name that is not followed by an equal sign (=) and default value. a keyword argument is followed by an equal sign and an expression that gives its default value. </blockquote> <pre><code>def rectanglearea(width height): return width * height print rectanglearea(width=1 height=2) </code></pre> <strong>question</strong>> i assume that both <code>width</code> and <code>height</code> are positional arguments. then why we can also call it with keyword real argument syntax,python | |
| how to push value to same array key object: <pre><code>{0:{name: amy age:10} 1:{name: bob age:10} 2:{name: tom age:11}}; </code></pre> how to make to category by age like php can loop to <code>array[age][] = value</code>.,javascript | |
| little help with some (simple) javascript code i m a newb when it comes to javascript. perhaps somebody could help me with this. i assume it is not very complicated. this is what i would like: <pre><code><script type=text/javascript> var standardurl = http://site/lists/test/allitems.aspx ; </script> <script type=text/javascript> var filterurl = http://site/lists/test//allitems.aspx filterfield1=judge&filtervalue1= ; </script> </code></pre> <code>var dynamicurl = filterurl + dynamicuserinf</code> (no space between it should be like one url link) dynamicuserinf contains different value depending on the user that is logged in no need to worry what is in it. it already contains a value befor this runs <code>var currenturl = current url where this script is loading</code> <pre><code><script language= javascript type= text/javascript > if (currenturl == standardurl) { location.href= (dynamicurl);} </script> </code></pre> else do nothing (i assume this is not neccarry with only one if statement) hopefully not much of a mess.,javascript | |
| keep the score of a game in javascript when a user clicks the dice are rolling: <pre><code>function launch(){ //random images of the dice var images = [ images/dice-1.jpg images/dice-2.jpg images/dice-3.jpg images/dice-4.jpg images/dice-5.jpg images/dice-6.jpg ]; var random1 = images[math.floor(math.random() * images.length)]; var random2 = images[math.floor(math.random() * images.length)]; document.getelementbyid( firstimage ).src =random1; document.getelementbyid( secondimage ).src =random2; } </code></pre> then if the dice are the same (have the same src) i want to increase the score in a cell: <pre><code>var scoreofplayer = 0; function check(){//check if the dices are the same var dice1 = getelementbyid( firstimage ).getattribute( src ); var dice2 = getelementbyid( secondimage ).getattribute( src ); if (dice1 == dice2){ scoreofplayer +=1; document.getelementbyid( scor1 ).innerhtml=scoreofplayer; } } </code></pre> html: <pre><code><table> <tr> <td>name</td> <td>score</td> </tr> <tr> <td id= firstname ></td> <td id= scor1 ></td> </tr> </table> <button onclick= launch(); >role dice</button> <div id= zaruri style= width:450px;height:300px; > <img id = firstimage src= images/dice-1.jpg /> <img id = secondimage src= images/dice-1.jpg /> </div> </code></pre> nothing appears in <code>scor1</code> cell. what am i doing wrong thanks!,javascript | |
| java sorting string with numbers including symbols < >= what is the best way to sort a string with numbers containing the > < >= ... symbols in it. <pre><code>string[] v = { <0.5 >0.5 0.5 <0.5 }; output: <0.5 <0.5 0.5 >0.5 </code></pre> thanks,java | |
| iphone: uiimage imagenamed doesn t show the image <img src= https://i.stack.imgur.com/jbehl.png alt= enter image description here > hi i am trying to use the attached image in an uitableview cell. images are in application bundle. except this image and few images other images are showing fine in the cell. i couldn t find whats the reason to not showing this image particularly. could someone help me if you came across such problems <pre><code>myimageview.image = [uiimage imagenamed:@ icontemp.png ] </code></pre>,iphone | |
| create a unique object for each customer <strong>this is a hw assignment</strong> displaymenu.java customer.java account.java so the question asks to make a menu and create an account for customer with unique id.once we create a customer object we create an account object for this customer.i could alway s say customer c1 = new customer() but this is manually as i cannot control the number of objects that will be created. my question is how can i create unique objects of customer and account type when the option menu is a do while loop. can some one shed some light on this <pre><code>import java.util.*; public class usercontroller{ public static void main(string args[]){ scanner sn = new scanner(system.in); int option; do { option=0; system.out.println( please select from menu below ); system.out.println( 1.create personal customer ); system.out.println( 2.create commericial customer ); system.out.println( 3.record transaction ); system.out.println( 4.make withdrawl ); system.out.println( 5.display customer ); system.out.println( 6.display customer summary ); system.out.println( 7.display grand summary ); system.out.println( 8.exit ); system.out.println( please enter a option ); try{ option=sn.nextint(); } catch(exception e){ system.out.println( please enter a number ); option = 9; } // system.out.println(option+ value is ); switch(option){ case 1: system.out.println( enter the name of the customer ); string cname = sn.nextline(); personalcustomer p1 = new personalcustomer(cname); break; case 2:break; case 3:break; case 4:break; case 5:break; case 6:break; case 7:break; case 8:break; default: system.out.println( invalid option please choose a valid option ); break; } } while (option!=8); } } </code></pre>,java | |
| string to int conversion bug <blockquote> <strong>possible duplicate:</strong><br> <a href= https://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers >python “is” operator behaves unexpectedly with integers</a> </blockquote> in python 2.6.6 when i use int() to convert a string to a number the below code doesn t behave correct if the string is 257 or larger. <pre><code>curr = int( 256 ) myint = int( 256 ) if curr is myint: print( true ) else: print( false ) </code></pre> this returns true which is correct <pre><code>curr = int( 257 ) myint = int( 257 ) if curr is myint: print( true ) else: print( false ) </code></pre> this returns false,python | |
| doubts on objects in python code i ve copied a python code from a guide: <pre><code>class carta: listasemi=[ fiori quadri cuori picche ] listaranghi=[ impossibile asso 2 3 4 5 6 \ 7 8 9 10 jack regina re ] def __init__(self seme=0 rango=0): self.seme=seme self.rango=rango def __str__(self): return (self.listaranghi[self.rango] + di + self.listasemi[self.seme]) def __cmp__(self altro): #controlla il seme if self.seme > altro.seme: return 1 if self.seme < altro.seme: return -1 #se i semi sono uguali controlla il rango if self.rango > altro.rango: return 1 if self.rango < altro.rango: return -1 return 0 </code></pre> when i call from shell: <pre><code>>>> carta1=carta(1 11) traceback (most recent call last): file <stdin> line 1 in <module> typeerror: module object is not callable </code></pre> i m using python version 2.7. what s wrong thanks,python | |
| why in line 18 the error: attributeerror: fibcounter object has no attribute fibcounter occurs <pre><code>class fibcounter: def __int__(self): self.fibcounter = 0 def getcount(self): return self.fibcounter def resetcount(self): self.fibcounter = 0 return self.fibcounter def fib(self n): self.fibcounter = self.fibcounter + 1 if n<3: return 1 else: return fib(n-1)+fib(n-2) def main(): n = eval(input( enter the value of n (n represents the nth fibonacci number): )) fibonacci = fibcounter() fibonacci.fib(n) print( the number of time fib function is called is: fibonacci.getcount()) fibonacci.resetcount() if __name__ == __main__ : main() </code></pre>,python | |
| xcode 3.2.6 release configuration is missing hello i am trying to submit app to appstore. i had release option in xcode.but some setting has been changed and now i am having only debug option. no release no distribution . what can i do please help,iphone | |
| error: cannot find symbol using if + else i m learning java language one week ago. i have decided to create a simple project: one login screen (jframe) with a register button that brings you to other jframe in order to fill several register fields. on the registere jframe i m working with the register button in order to check empty fields in the register process lauching a pop up message error if some fields have not been filled. here you go: <a href= http://i.stack.imgur.com/xe76o.jpg rel= nofollow >image1</a> it works fine. no problem runnig it. my problema begin when i add an else statement inside the previous if. what is the else function well when the user fills the fields successfully it lauchs a pop up message: register completed and automatically lauchs other jframe with a user menu. i get the error doing it. here you can see my source code: <a href= http://i.stack.imgur.com/swlxa.jpg rel= nofollow >image2</a> whats the problem why the error appears only when i try to add else statement inside my previous if,java | |
| automatically generate a field in javascript i ve been trying to fill in an automatically generated field where for example automatically fill in retired when older then 70 is selected in an option selection box. could i get any help in it please :),javascript | |
| stringescapeutils unicode convert not working in java <pre><code>**jsp code** <% string str= &#2340;&#2369;&#2350;&#2381;&#2361;&#2366;&#2352;&#2366; &#2344;&#2366;&#2350; &#2325;&#2381;&#2351;&#2366; &#2361;&#2376; ; out.println( stringescapeutils.unescapejava(sjava):\n + stringescapeutils.unescapejava(str)); %> </code></pre> <strong>same in java class</strong> <pre><code>public static void main(string[] args) { string str= &#2340;&#2369;&#2350;&#2381;&#2361;&#2366;&#2352;&#2366; &#2344;&#2366;&#2350; &#2325;&#2381;&#2351;&#2366; &#2361;&#2376; ; system.out.println( stringescapeutils.unescapejava(sjava):\n + stringescapeutils.unescapejava(str)); } </code></pre> in jsp its show me perfect output. which i need . but when u use same code in java class.its return same string .,java | |
| iphone autorefresh - updating the view by maintaining the scroll position i am developing a cricket app where there is autorefresh. we use a framework library which handles the autorefresh and layouting of views. the problem is that during autorefresh the data is got the view is created and the existing view is removed and replaced. because of this the scroll position is not maintained and the page scrolls to the top. how can this be avoided. hope am clear about my requirement. the problem is also that the data is dynamic and the layout has to be flexible.,iphone | |
| can someone explain this line of code to me piece by piece: forprice.innerhtml=document.forms[0].elements[2].value; <pre><code>forprice.innerhtml=document.forms[0].elements[2].value; </code></pre> i understant that the forprice variable is changed (basically the left side of the equation) but what i dont understand is the forms[0] part and the elements [2]. value part-my understanding of the elements. value portion is that it takes whatever the value is of the element that is in the second position or possibly the second elements in the form. below is the code for the whole page -thanks <pre><code><!doctype html> <html> <head> <meta charset= utf-8 > <title>untitled document</title> <script> var imgs=new array(); imgs[0]=new image(400 400); imgs[1]=new image(400 400); imgs[2]=new image(400 400); imgs[3]=new image(400 400); imgs[4]=new image(400 400); imgs[0].src= m&p45blackwithcase.jpg ; //the above image does not load for some reason... i have tried changing the array order to included this first imgs[1].src= m&p45optimized.jpg ; imgs[2].src= m&p45blackoptimized.jpg ; //eliminated image due to corruption imgs[3].src= taurus24-7package.jpg ; imgs[4].src= taurus689.jpg ; var imgs2=new array(); imgs2[0]=new image(400 400); imgs2[1]=new image(400 400); imgs2[2]=new image(400 400); imgs2[0].src= ammochart.jpg ; imgs2[1].src= handgun_ammunition_chart.jpg ; imgs2[2].src= rifle-ammo-chart-optimized.jpg ; </script> <script> var i=0; function forward(){ // alert ( function ); i++; if(i==5){ i=0;} document.main.src=imgs[i].src; } function backward (){ i--; if(i==-1){ i=4;} document.main.src=imgs[i].src; } function update(form){ var imgvalue=document.getelementbyid( imgslider ); whichimg=imgvalue.value; document.main.src=imgs[whichimg].src;} function selectthis (form){ var cntr; // alert ( function ); cntr=form.ammodd.selectedindex-1; document.main2.src=imgs2[cntr].src; /* //forprice=document.getelementbyid( desc ); //forprice.innerhtml=document.forms[0].elements[2].value; removed because it s not needed var imgvalue2=document.getelementbyid( secondary ); whichimg=imgvalue2.value; document.secondary.src=imgs2[whichimg].src; */ } var forprice; var cntr; function selectthis (form){ cntr=form.gundd.selectedindex-1; document.main.src=imgs[cntr].src; forprice=document.getelementbyid( price ); forprice.innerhtml=document.forms[0].elements[2].value; } </script> </head> <body> <div align= center > <table width= 600 border= 0 > <caption> <h1>firearms deluxe emporium superstore outlet market discount megacenter</h1> </caption> <tbody> <tr> <td><div align= center ><a href= home.html >home</a></div></td> <td><div align= center ><a href= products(image1works).html >products</a></div></td> <td><div align= center ><a href= checkout(toplayfunctionworks).html >checkout</a></div></td> </tr> </tbody> </table> <h1>&nbsp;</h1> <p><img src= m&p45blackwithcase.jpg name= main width= 640 height= 480 id= main /></p> <form id= form1 name= form1 method= post action = > <p>just </p> <select name = gundd onchange= selectthis(this.form) > <option value = # selected= selected > choose one </option> <option value = 400.00 >psychedelic view 1</option> <option value = 450.00 >psychedelic view 2</option> <option value = 500.00 >psychedelic view 3</option> <option value = 871.00 >psychedelic view 4</option> </select> <table width= 400 border= 4 > <tr> <td align= right > <input type= button name= backup id= backup value= back onclick= backward() /></td> <td align = left > <input type= button name= forwardon id= forwardon value= forward onclick= forward() /></td> </tr> <tr> <td colspan= 2 align= center > <input type= range id= imgslider name= imgslider min= 0 max= 4 value= 0 step= 1 onchange= update(this.form) ></td> </tr> </table> </form> <form id= form2 name= form2 method= post action = > <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p><img src= bullitsassorted-optimized.jpg id= main2 name = main2 width= 620 height= 465 alt= /></p> <p> we have all types of rounds available. </p> <p>whatever your needs are we can fill them. </p> <p> <select name= ammodd onchange= selectthis(this.form) > <option selected= # >we even have amunition</option> <option>rifle rounds</option> <option>handgun rounds</option> <option>uses</option> </select> </form> </div> </body> </html> </code></pre>,javascript | |
| how to implement comparator when compare function is used in the same class if a class implements comparator how can we define the compare function <pre><code>public int compare(classname c1 classname c2) { // c1 has to be this.how can we use it } </code></pre>,java | |
| guessing game with minimum guesses used not working in java i m creating a guessing game in java using netbeans. the guessing game allows the user to guess a number between 1 and 10. each round they have 5 chances to guess the number. there are three rounds in the game. after the user finishes the game stats are outputted with the minimum # of guess and maximum # of guesses. the minimum guesses isn t working and it always outputs 1. right now i have the program set up so that it keeps track of how many times the user guesses per round. after each round it compares this value to the min value and max value. the minguess is set as 5 since it isn t possible to guess more than 5 times. the maxguess is set as 1 since they will always guess one time or more than one time. <pre><code>static void numberguess(int guess int randnum) { //creating a method to check if the user has guessed the correct number or if the guess should be higher or lower if (guess < 0 | guess > 10) { system.out.println( please enter a valid number between 1 and 10. ); } else if (guess == randnum) { system.out.println( you guessed the number correctly ); } else if (guess < randnum) { system.out.println( guess is too low ); } else if (guess > randnum) { system.out.println( guess is too high ); } } /** * @param args the command line arguments */ public static void main(string[] args) { /*rational: this program allows a user to guess a number between 1 and 10 five times per round. there are three rounds in one game. the program then outputs the stats for the game. */ //declaration int userguess; //creates a spot in memory for these variables int numofguess = 0; int invalidguess = 0; int minguess = 5; int maxguess = 1; int average; scanner input = new scanner (system.in); //creates an object in the scanner clas //execution system.out.println( welcome to super guessing game! guess a random number between 1 and 10. there are three rounds with one guess each. ); loopone: //labels the loop as looptwo for (int x = 1; x <= 3; x= x + 1 ) { //runs the loop for three rounds system.out.println( ); system.out.println( round + x); system.out.println( to exit the game at any point enter a negative 1 ); system.out.println( ); int randnum; randnum = 1 + (int)(math.random() * ((10 - 1) + 1)); //generates the random number looptwo: //labels the loop as looptwo for (int y = 1; y <= 5; y= y + 1) { //runs the loop five times (five guesses per round) numofguess = numofguess + 1; //counts number of guesses user has made system.out.println( guess + y + out of 5 ); system.out.println( please guess a number between 1 and 10: ); userguess = input.nextint(); if (userguess == -1){ //sentinel to let the user quit at any time system.out.println( thank you for playing ); break loopone; //breaks out of the loops if the user wants to stop playing } numberguess(userguess randnum); //calls the numberguess method if (y < minguess) //compares to see if the minimum number of guesses is less that the number of guesses the user has made this round minguess = y; if (y > maxguess) //compares to see if the maximum number of guesses is greater than the number of guesses that the user has made this round maxguess = y; if (userguess <1 | userguess > 10) { //keeps track of invalid guesses invalidguess = invalidguess + 1; } if (userguess == randnum) { //exits the round if the user guesses correctly break; } } } average = numofguess / 3; //calculates the average number of guesses system.out.println( thanks for playing! ); //outputs the following system.out.println( ); system.out.println( number of guesses made: + numofguess); system.out.println( average number of guesses: + average); system.out.println( number of invalid guesses: + invalidguess); system.out.println( minimum guesses used: + minguess); system.out.println( maximum guesses used: + maxguess); } </code></pre> },java | |
| javascript returning undefined when using .text i know with <code>.value</code> i can get the value of the item selected but what i need is the name of the selected item. for example i have this drop down menu with contains two items: class 1 and class 2. the value of class 1 is 50 and the value of class 2 is 60. if i use dmt5.value (class 1 s value) i get 50 but what i need is the name itself which is class 1 . so i tried using this code : <pre><code>var classrate = document.getelementbyid( dmt5 ) var selectedclassrate = classrate.options[classrate.selectedindex].text </code></pre> however i get an error: unable to get property text of undefined or null reference *edit: here s dmt5: <pre><code><td style= padding-right: 9px; > <select id= dmt5 onchange= jcalculate() style= width: 143px; padding: 2px 5px 2px 5px; > <option></option> <script runat= server language= cache > do init^csp999 #import mx set origin=$g(%session.data( viprates origin )) set id=$g(%session.data( viprates id )) &sql(declare ccursor0 cursor for select vipratesitems_class1 vipratesitems_class2 into :r1 :r2 from mx.viprates_vipratesitems where viprates->customer->custcode=:id and vipratesitems_country=:origin) &sql(open ccursor0) &sql(fetch ccursor0) while sqlcode=0{ w <option value= _r1_ >class 1</option> w <option value= _r2_ >class 2</option> &sql(fetch ccursor0) } &sql(close ccursor0) </script> </select> </td> </tr> </code></pre> and here s my js: <pre><code>function jcalculate(){ document.getelementbyid( s1 ).style.display= inline document.getelementbyid( s2 ).style.display= inline document.getelementbyid( s4 ).style.display= inline var unitmeasure= kg var country=packaget8.value var dm = 3500 repack = 0 dimension=0 volumetric=0 selectedwt=0 othercharges=0 if (country == united states of america ) { var class1 = dmt5.value var dm = 166 } else if (country == united kingdom ) { var class1 = dmt5.value dm=6000 alert(dmt5.value) } else if (country == hong kong ) { var class1 = dmt5.value } else if (country == china ) { var class1 = dmt5.value } else if (country == singapore ) { var class1 = dmt5.value } if (country == united states of america ) { var class2 = dmt5.value } else if (country == united kingdom ) { var class2 = dmt5.value } else if (country == hong kong ) { var class2 = dmt5.value } else if (country == china ) { var class2 = dmt5.value } else if (country == singapore ) { var class2 = dmt5.value } var volumetric= (dmt1.value*dmt2.value*dmt3.value)/dm if (isnan(volumetric)) var volumetric=0 if(volumetric % 1 != 0) volumetric=volumetric+1 var volumetric=parseint(volumetric) if (dmt5.selectedindex== 1 ) var classamt=class1 if (dmt5.selectedindex== 2 ) var classamt=class2 var actualwt=dmt6.value if (isnan(actualwt)) var actualwt=0 if (actualwt>volumetric)var selectedwt=actualwt if (actualwt<=volumetric)var selectedwt=volumetric var vat=(selectedwt*classamt)*(12/100) if (isnan(vat)) var vat=0 if (cb1.checked==true){ var repack=3 } var amountdue=(selectedwt*classamt)+ vat if (isnan(amountdue)) var amountdue=0 if (country== u.s.a ){ var unitmeasure= lb/s } dmt9.value=selectedwt dmt11.value=classamt dmt12.value=volumetric document.getelementbyid( amountdue ).innerhtml=amountdue.tofixed(2) document.getelementbyid( s1 ).innerhtml= volumetric weight: +volumetric + unitmeasure document.getelementbyid( s2 ).innerhtml= chargable weight: +selectedwt + unitmeasure document.getelementbyid( s3 ).style.display= inline //----other charges if (country== u.s.a ){ var volumetric=((dmt1.value * 2.54) * (dmt2.value * 2.54) * (dmt3.value * 2.54))/3500 if (isnan(volumetric)) var volumetric=0 if(volumetric % 1 != 0) volumetric=volumetric+1 var volumetric=parseint(volumetric) var actualwt=dmt6.value actualwt=actualwt/2.2 if(actualwt% 1 != 0) actualwt=actualwt+1 var actualwt=parseint(actualwt) if (isnan(actualwt)) var actualwt=0 if (actualwt>volumetric)var selectedwt=actualwt if (actualwt<=volumetric)var selectedwt=volumetric } if (selectedwt<=3 ){ if (country== u.s.a ){ dimension = ((dmt1.value * 2.54) * (dmt2.value * 2.54) * (dmt3.value * 2.54))/3500 } else{ dimension = (dmt1.value * dmt2.value * dmt3.value)/3500 } if (isnan(dimension )) var dimension = 0 if(dimension % 1 != 0) dimension =dimension +1 var dimension =parseint(dimension ) if ((dmt4.value== mmnl || dmt4.value== luzon ) && (country!= u.s.a )){ var othercharges = 4.48 } else if ((dmt4.value== visayas || dmt4.value== mindanao ) && (country!= u.s.a )){ var othercharges = 4.62 } else if(dmt4.value== luzon ){ var othercharges = 4.48 } else if (dmt4.value== visayas || dmt4.value== mindanao ){ var othercharges = 4.62 } } if (selectedwt>=4){ if (country== u.s.a ){ dimension = ((dmt1.value * 2.54) * (dmt2.value * 2.54) * (dmt3.value * 2.54))/3500 } else{ dimension = (dmt1.value * dmt2.value * dmt3.value)/3500 } if (isnan(dimension )) var dimension =0 if(dimension % 1 != 0) dimension =dimension +1 var dimension =parseint(dimension ) if ((dmt4.value== mmnl || dmt4.value== luzon ) && (country!= u.s.a )){ var othercharges = 2.30 * dimension } else if ((dmt4.value== visayas || dmt4.value== mindanao ) && (country!= u.s.a )){ var othercharges = 2.50 * dimension } else if(dmt4.value== luzon ){ var othercharges = 2.30 * dimension } else if (dmt4.value== visayas || dmt4.value== mindanao ){ var othercharges = 2.50 * dimension } } if (country== u.s.a && dmt4.value== mmnl ){ var othercharges=0 } if (paymentt3.value== for pick up ){ var othercharges=0 } var amountdue=amountdue+othercharges+repack if (isnan(amountdue)) var amountdue=0 dmt7.value=vat.tofixed(2) dmt8.value=othercharges.tofixed(2) #server(..camountinpeso(amountdue.tofixed(2) dmt13.value dmt14.value))# document.getelementbyid( s4 ).innerhtml= delivery charges: usd + othercharges.tofixed(2) } </code></pre> i think i ve solved it by using selectedindex . i get the index of the selected item.,javascript | |
| changing uiimage in uiimageview in uiscrollview i have a uiscrollview with a uiimageview subview created in ib. the first time i create a uiimage and set it to be the image in the uiimageview all works fine. if i create a new uiimage and set it to be the image in the uiimageview the image is offset by some (seemingly) random offset. how can i make this work,iphone | |
| why doesn t my simple if-statement render false in javascript i call a function like this: <pre><code>call_facebook(103138046395999 samåkning.se http://www.facebook.com/samakning page ); call_facebook(16089699074 jag ska köra bil vem vill åka med http://www.facebook.com/groups/16089699074/ grupp ) </code></pre> the function looks like this: <pre><code>function call_facebook(id name link type){ //snip console.log(type) if (type = grupp ){ var postid=fbposts[fbpost].id.split( _ ); return https://www.facebook.com/groups/ +postid[0]+ /permalink/ +postid[1]+ / } else { return fbposts[fbpost].actions[0].link; } } //snip }; </code></pre> i have confirmed that they have different type arguments but still the first case <code>if (type = grupp )</code> always ends up <code>true</code>. why,javascript | |
| how can set select wifi network through programming as alternate of uirequirespersistentwifi <blockquote> <strong>possible duplicate:</strong><br> <a href= https://stackoverflow.com/questions/8213862/how-can-i-connect-to-a-password-proctected-wifi-named-as-a >how can i connect to a password proctected wifi named as “a”</a> </blockquote> i need to hardcode the wifi password and how can i connect to specific wifi network when it is available as alternate of uirequirespersistentwifi(which shows a dialog box for wifi). please help my task is that i need to connect a network names as a and its password in 2322,iphone | |
| is there any way better than this to do a factory i have created a factory like this to create an specific object depending of a <code>select</code> value: <pre><code>let myfactory = { create_doctor : function(){return new doctor();} create_nurse : function(){return new nurse();} create_patient : function(){return new patient();} }; let aperson=[]; myselect.addeventlistener( change function(){ aperson.push(myfactory[ create_ +myselect.options[myselect.selectedindex].value]()); } </code></pre> of course i have all the classes that i can create in the factory and myselect gets the reference to the html select. but my question is... is there an (even) better way to do this because the other way that i know is doing a really big if/else that consider all alternatives which makes the code less maintainable.,javascript | |
| how to load js scripts that will add only one additional script i have 2 script files that you put in the <code><head></code> however they share the same util script file. i want that in case they are both loaded on the same page the util file will load only once. if only one of them is loaded the util will still be loaded once... i cant use <code><script src=...utils.js></code>... only the 2 scripts i am using <pre><code>var s = document.createelement( script ); s.src = s3 + /js_enc/utils.js ; s.type = text/javascript ; document.getelementsbytagname( head )[0].appendchild(s); </code></pre> what is the best way to achieve this thanks,javascript | |
| splitting python 1d array into 2d array by comma i m relatively new to python (experience in c#) and i have a list in a text file that i dumped into a list using; <pre><code>with open(fname) as f: content = f.readlines() content = [x.strip() for x in content] </code></pre> the thing is every line is in the form xxxxx xxxxx (with varying lengths of xxxxx) and i want to convert f into a 2-dimensional array with things in the line before the comma in the first dimension and everything after in the second. what s the best practice for doing something like that,python | |
| iphone - what is the difference between nsweekcalendarunit and nsweekdaycalendarunit i am trying to set a repeatinginterval of a uilocalnotification using these values but as always apple docs are vague as hell. any clues thanks.,iphone | |
| how to simultaneously process 2 fasta generators this seems so trivial yet its giving me a hard time. i would simply like to process two fasta generators at the same time so as to compare the first header and sequence of one file with the first header and sequence of another file the second to the second and so on until both files are complete. both fasta files have the same number of sequences and they are ordered as 2 reads of a pair e.g. the first sequence of fasta1 and the first sequence of fasta 2 are read pairs and so on til the end of the files. i have a generator that gives me the header and sequence for each sequence of a fasta file <pre><code>def fileparse (self): # get file from __init__ and open. # parse header and sequence yield (header sequence) </code></pre> however i can t seem to figure out how to iterate over two files at the same time. i started with this: <pre><code># x class variable sends first fasta # y class variable sends second fasta for header sequence in x.fileparse(): for header2 sequence2 in y.fileparse(): # compare headers and evaluate. </code></pre> obvsiously the problem here is that i compare each header in one file to each header in another where i only want to compare the first header to the first header the second to the second and so on. i am having difficulty cause it seems as if i always need to iterate through the generator. maybe i need to adjust the genrator method itself to generate a header and sequence for two files simultaneously thank you,python | |
| correct syntax for inheritance in javascript very trivial question i m trying to understand inheritance in javascript <pre><code>function animal() { this.eats = true; } function rabbit() { this.jumps = true; } //rabbit is-a animal rabbit.prototype = animal; //i m assuming this does not inherit alert(rabbit.prototype.eats); // returns undefined </code></pre> what is the right way,javascript | |
| what propagation i m stopping in drag and drop following the mdn guide <em>selecting files using drag and drop</em> the code is: <pre><code>var dropbox; dropbox = document.getelementbyid( dropbox ); dropbox.addeventlistener( dragenter dragenter false); dropbox.addeventlistener( dragover dragover false); dropbox.addeventlistener( drop drop false); function dragenter(e) { e.stoppropagation(); e.preventdefault(); } function dragover(e) { e.stoppropagation(); e.preventdefault(); } function drop(e) { e.stoppropagation(); e.preventdefault(); var dt = e.datatransfer; var files = dt.files; handlefiles(files); } </code></pre> i understand that i ve to use <code>preventdefault()</code> to avoid the browser from open the file that i drop. but why do i ve to use <code>stoppropagation()</code> what bubbling/capturing am i stopping here,javascript | |
| javascript sum array of arrays of objects together i have an array with the following format <pre><code>[ [{year:2015 value:23000 value1:1000} {year:2016 value:1000 value1:2000} {year:2017 value:400 value1:3000}] [{year:2015 value:10000 value1:1000} {year:2016 value:2000 value1:3000} {year:2017 value:500 value1:2000}] ] </code></pre> i want to sum them together in this example i want to have <pre><code>[{year:2015 value:33000 value1:2000} {year:2016 value:3000 value1:5000} {year:2017 value:900 value1:5000}] </code></pre> if there are only two arrays in the array but there maybe more arrays in the bigger array. how can i achieve this currently i am not able to figure out a good method. thanks,javascript | |
| standard individual and standard company my question is: i know the difference between a standard individual program and a standard company program that with the individual program only one developer can develop an application with this account but in the real life with a standard individual program there are many developers who can works with this count. my question is what is the difference between both programs thanks.,iphone | |
| when does static inner class get loaded into the jvm memory i was playing around some static nested class. <pre><code>package com.tutorial; public class myupperclass { private myupperclass () { } private static class mystaticinnerclass{ private static final myupperclass muc = new myupperclass (); } public static myupperclass getinstance() { return mystaticinnerclass.muc; } } </code></pre> when does <code>mystaticinnerclass</code> get loaded into the jvm memory at the time of when <code>myupperclass</code> get loaded or <code>getinstance()</code> get called,java | |
| problem in calling a function from different class using protocols-iphone i use cocos2d for my game. in which i play a movie and have a separate overlay view for controls.the touches are detected in the overlay view. now when the touches are detected the function in the game code has to be invoked. but the function is not detected and there is no error. i dont know what has gone wrong. someone please help me. the code are as follows the protocol part is <pre><code>@protocol protocol @required - (void)transition1:(id)sender; @end </code></pre> the function which is to be invoked in the game code is <pre><code>- (void)transition1:(id)sender { [[director shareddirector] replacescene: [ [scene node] addchild: [layer4 node] z:0] ]; } </code></pre> the code in the overlay view in movieoverlayviewcontroller.h <pre><code>#import protocol.h @interface movieoverlayviewcontroller : uiviewcontroller { uiimageview *overlay; nsobject <protocol> *transfer; } @end </code></pre> the code in the overlay view in movieoverlayviewcontroller.m <pre><code>@implementation movieoverlayviewcontroller - (id)init { if ((self = [super init])) self.view = [[[uiview alloc] initwithframe:[[uiscreen mainscreen] applicationframe]] autorelease]; return self; } -(void) viewwillappear:(bool)animated { overlay = [[[uiimageview alloc] initwithimage:[uiimage imagenamed:@ overlay.png ]] autorelease]; [self.view addsubview:overlay]; } - (void)touchesbegan:(nsset *)touches withevent:(uievent *)event { uitouch *touch = [touches anyobject]; cgpoint point = [touch locationinview:self.view]; nslog(@ pointx: %f pointy:%f point.x point.y); if (cgrectcontainspoint(cgrectmake(1 440 106 40) point)) { // the function is called here [transfer transition1: nil]; } else if (cgrectcontainspoint(cgrectmake(107 440 106 40) point)) nslog(@ tab 2 touched ); } - (void)dealloc { [overlay release]; [super dealloc]; } @end </code></pre>,iphone | |
| passing the argument name while calling function in javascript i have a function which looks like this: <pre><code>function helo(a b){ if(a) { //do something } if(b) { //do something } } </code></pre> now if i want to specify which parameter has to be passed while calling helo how do i do it in javascript i.e if i want to send only parameter b how do i call the function helo <pre><code>helo(parameterb); </code></pre> right now parameter a takes the value,javascript | |
| how to make the ball bounce off the circle graphic2d - java i m working on air hockey game. until now i ve moved both handles and bounce the ball in my air hockey table actually ball can bounce off the walls but my problem is i can t hit the ball with my handles and i don t have any idea for that. i searched in the net but i couldn t find any thing. i ll appreciate if you help me as soon as you can!! this is all my code that you need: <pre><code>public class startgamepanel extends jpanel implements actionlistener keylistener runnable { private static final long serialversionuid = 1l; double xcircle1=200; double ycircle1 =100 ; double xcircle2=200; double ycircle2 =700 ; double xball=200; double yball=400; double rball=20; double ballspeedx=-3; double ballspeedy=0; private ball m_ball = new ball(0 0 7 7); private int m_interval = 35; private timer m_timer; double dx = 0 dy = 0 dx2=0 dy2=0; private graphics2d circle1; private graphics2d circle2; private graphics2d circle3; public static void main(string[] args) { jframe f=new jframe(); f.setsize(new dimension(512 837)); startgamepanel p=new startgamepanel(); f.add(p); f.setdefaultcloseoperation(jframe.exit_on_close); f.setvisible(true); } public startgamepanel(){ m_timer = new timer(m_interval new timeraction()); m_timer.start(); // start animation by starting the timer. timer t = new timer(5 this); t.start(); addkeylistener(this); setfocusable(true); } public void paintcomponent(graphics g) { super.paintcomponent(g); addkeylistener(this); containertable table=new containertable(2 0 493 800 new color(51 153 255) color.white); table.draw(g); circle1 = (graphics2d) g; circle1.setcolor(new color(255 51 51)); shape thecircle = new ellipse2d.double(xcircle1 - 40 ycircle1 - 40 2.0 * 40 2.0 * 40); circle1.fill(thecircle); circle2 = (graphics2d) g; circle2.setcolor(new color(255 102 102)); shape thecircle2 = new ellipse2d.double(xcircle1 - 35 ycircle1 - 35 2.0 * 35 2.0 * 35); circle2.fill(thecircle2); circle3 = (graphics2d) g; circle3.setcolor(new color(255 51 51)); shape thecircle3 = new ellipse2d.double(xcircle1 - 20 ycircle1 - 20 2.0 * 20 2.0 * 20); circle3.fill(thecircle3); graphics2d circleprim = (graphics2d) g; circleprim.setcolor(new color(0 51 102)); shape thecircleprim = new ellipse2d.double(xcircle2 - 40 ycircle2 - 40 2.0 * 40 2.0 * 40); circleprim.fill(thecircleprim); graphics2d circle2prim = (graphics2d) g; circle2prim.setcolor(new color(0 102 204)); shape thecircle2prim = new ellipse2d.double(xcircle2 - 35 ycircle2 - 35 2.0 * 35 2.0 * 35); circle2prim.fill(thecircle2prim); graphics2d circle3prim = (graphics2d) g; circle3prim.setcolor(new color(0 51 102)); shape thecircle3prim = new ellipse2d.double(xcircle2 - 20 ycircle2 - 20 2.0 * 20 2.0 * 20); circle3prim.fill(thecircle3prim); g.setcolor(color.gray); m_ball.draw(g); graphics2d goal = (graphics2d) g; goal.setcolor(color.black); goal.fill3drect(100 0 300 10 true); graphics2d goal2 = (graphics2d) g; goal2.setcolor(color.black); goal2.fill3drect(100 790 300 10 true); } class timeraction implements actionlistener { public void actionperformed(actionevent e) { m_ball.setbounds(getwidth() getheight()); m_ball.move(); repaint(); } } @override public void actionperformed(actionevent e) { repaint(); xcircle1 += dx; ycircle1 += dy; ycircle2 += dy2; xcircle2+= dx2; } @override public void keypressed(keyevent e) { int code = e.getkeycode(); if (code == keyevent.vk_up) { if(ycircle1>40){ dy = -2; dx = 0; }else{ ycircle1=40; dy *= -1; dx=0; } } if (code == keyevent.vk_down) { if(ycircle1<360){ dy = 2; dx = 0; }else{ ycircle1=360; dx =0; dy *= -1; } } if (code == keyevent.vk_left) { if (xcircle1 < 30) { xcircle1=30; dy = 0; dx *= -1; }else { dy = 0; dx = -2; } } if (code == keyevent.vk_right) { if (xcircle1 > 460) { xcircle1= 460; dx *= -1; dy = 0; }else{ dy = 0; dx = 2; } } if (code == keyevent.vk_f) { if (xcircle2 > 460) { xcircle2= 460; dy2 = 0; dx2 *= -1; }else{ dy2 = 0; dx2 = 2; } } if (code == keyevent.vk_s) { if (xcircle2 < 30) { xcircle2=30; dy2 = 0; dx2 *= -1; }else { dy2 = 0; dx2 = -2; } } if (code == keyevent.vk_e) { if(ycircle2>430){ dy2 = -2; dx2 = 0; }else{ ycircle2=430; dy*= -1; dx=0; }} if (code == keyevent.vk_d) { if(ycircle2>750){ ycircle2=750; dy2 *= -1; dx2=0; }else{ dy2 = 2; dx2 = 0; }} } @override public void keyreleased(keyevent e) { int code = e.getkeycode(); if (code == keyevent.vk_up) { dy = 0; dx = 0; } if (code == keyevent.vk_down) { dy = 0; dx = 0; } if (code == keyevent.vk_left) { dy = 0; dx = 0; } if (code == keyevent.vk_right) { dy = 0; dx = 0; } if (code == keyevent.vk_e) { dy2 = 0; dx2 = 0; } if (code == keyevent.vk_d) { dy2 = 0; dx2 = 0; } if (code == keyevent.vk_s) { dy2 = 0; dx2 = 0; } if (code == keyevent.vk_f) { dy2 = 0; dx2 = 0; } } @override public void keytyped(keyevent e) { } @override public void run() { thread.currentthread().setpriority(thread.min_priority); while (true) { xball += ballspeedx; yball += ballspeedx; repaint(); if (xball < 30) { ballspeedx = -ballspeedx; xball = 30; } if (xball > 470) { ballspeedx = -ballspeedx; xball = 470; } try { thread.sleep (20); } catch (interruptedexception ex) {} thread.currentthread().setpriority(thread.max_priority); }}} class ball { final static int diameter = 50; private int m_x; private int m_y; private int m_velocityx; private int m_velocityy; private int m_rightbound; private int m_bottombound; public ball(int x int y int velocityx int velocityy) { m_x = x; m_y = y; m_velocityx = velocityx; m_velocityy = velocityy; } public void setbounds(int width int height) { m_rightbound = width - diameter; m_bottombound = height - diameter; } public void move() { m_x += m_velocityx; m_y += m_velocityy; if (m_x < 0) { m_x = 0; m_velocityx = -m_velocityx; } else if (m_x > m_rightbound) { m_x = m_rightbound; m_velocityx = -m_velocityx; } if (m_y < 0) { m_y = 0; m_velocityy = -m_velocityy; } else if (m_y > m_bottombound) { m_y = m_bottombound; m_velocityy = -m_velocityy; } } public void draw(graphics g) { g.filloval(m_x m_y diameter diameter); } public int getdiameter() { return diameter;} public int getx() { return m_x;} public int gety() { return m_y;} public void setposition(int x int y) { m_x = x; m_y = y; } } class containertable { public int minx; public int maxx; public int miny; public int maxy; private color colorfilled; private color colorborder; public containertable(int x int y int width int height color colorfilled color colorborder) { minx = x; miny = y; maxx = x + width - 1; maxy = y + height - 1; this.colorfilled = colorfilled; this.colorborder = colorborder; } public void set(int x int y int width int height) { minx = x; miny = y; maxx = x + width - 1; maxy = y + height - 1; } public void draw(graphics g) { g.setcolor(colorfilled); g.fillrect(minx miny maxx - minx - 1 maxy - miny - 1); g.setcolor(colorborder); g.drawrect(minx miny maxx - minx - 1 maxy - miny - 1); graphics2d southarc = ( graphics2d ) g; southarc.setcolor ( color.white ); southarc.setstroke(new basicstroke(3)); southarc.drawarc ( 98 640 300 300 0 180 ); graphics2d northarc = ( graphics2d ) g; northarc.setcolor ( color.white ); northarc.setstroke(new basicstroke(3)); northarc.drawarc ( 98 -143 300 300 180 180 ); graphics2d line = ( graphics2d ) g; line.setstroke(new basicstroke(3)); line.setcolor(color.white); line.drawline(4 395 491 395); graphics2d dot=(graphics2d) g; dot.setcolor(color.black); for(int j=10;j<800;j+=20){ for(int i=6;i<502;i+=20){ dot.drawline(i j i j); } } } public int getminx() { return minx; } public void setminx(int minx) { this.minx = minx; } public int getmaxx() { return maxx; } public void setmaxx(int maxx) { this.maxx = maxx; } public int getminy() { return miny; } public void setminy(int miny) { this.miny = miny; } public int getmaxy() { return maxy; } public void setmaxy(int maxy) { this.maxy = maxy; }} </code></pre>,java | |
| how to add a ui button that calls a number from an array and displays the phone number as the button title <pre><code>anotherviewcontroller.mylabel = [nsstring stringwithformat:@ telephone %@ anotherviewcontroller.title]; </code></pre> this is the declaration for a previus label however im not sure how to do this for a button... the data array is located made in this format <pre><code> phonenumbers = [[nsarray alloc] initwithobjects:@ 6940313388 @ 4045434218 nil ]; self.phonenumbers =phonenumbers; </code></pre> and then the labels are simply added by <pre><code> thelabel.text = mylabel; </code></pre> where mylabel is an nsstring please help ive been trying to solve this for a very long time ...,iphone | |
| how to create expected object like tree i am trying to create an output object using the below object <pre><code>[{ department_name : education sub_department_name : [{ name : e1 app : [{ name : app1 date : 2018-02-06t18:30:00.000z }] } { name : e2 app : [{ name : app2 date : 2018-02-13t06:38:02.109z } { name : app3 date : 2018-02-13t06:38:50.012z }] }] }]; </code></pre> the final output should look like this <pre><code>[ { label : root children : [ { label : education collapsed : true children : [ { label : e1 collapsed : true children : [ { label : app1 collapsed : true } ] } { label : e2 collapsed : true children : [ { label : app2 collapsed : true } { label : app3 collapsed : true } ] } ] } ] } ] </code></pre> i have tried using javascript method but not able to achieve the expected output. any help on this will be really helpful. <a href= https://jsfiddle.net/mpq2tazt/10/ rel= nofollow noreferrer >jsfiddle</a> as requested posting my code here <pre><code>var obj = [{ department_name : education sub_department_name : [{ name : e1 app : [{ name : app1 date : 2018-02-06t18:30:00.000z }] } { name : e2 app : [{ name : app2 date : 2018-02-13t06:38:02.109z } { name : app3 date : 2018-02-13t06:38:50.012z }] }] }]; var deptobj = {}; var submainobj = {}; var subchildrenarr = []; var applnarr = []; for (x in obj) { deptobj.label = obj[x].department_name; for (y in obj[x].sub_department_name) { var subdeptobj = {}; subdeptobj.label = obj[x].sub_department_name[y].name; subchildrenarr.push(subdeptobj); for (z in obj[x].sub_department_name[y].app) { var applnobj = {}; applnobj.label = obj[x].sub_department_name[y].app[z].name; applnarr.push(applnobj); subdeptobj.children = applnarr; } } } deptobj.children = subchildrenarr; var deptarr = deptobj; var root = {}; root.label = root ; root.children = deptarr; alert(json.stringify(root)); </code></pre>,javascript | |
| python:print( .join(doc.xpath( //text() )) what is wrong please somebody says me what i have to write instead of application/x-abiwordabiword. <pre><code>python 3.2.3 (default apr 11 2012 07:15:24) [msc v.1500 32 bit (intel)] on win32 type copyright credits or license() for more information. >>> f=open( a.abw r ).read() >>> from lxml import etree >>> doc=etree.fromstring >>> from lxml import html >>> doc=html.fromstring >>> doc <function fromstring at 0x0113b858 >>> print( .join(doc.xpath( //text() )) application/x-abiwordabiword syntaxerror: invalid syntax </code></pre>,python | |
| i am using a modal view to display content on the screen but keyboard covering some field i am displaying a modal dialog but the keyboard is covering some of the editable fields. is there any way of making the view move automatically...or must i manually write the code required to do this i.e. change the location of the modal view etc <pre><code>uinavigationcontroller *navcontroller = [[uinavigationcontroller alloc]initwithrootviewcontroller:editviewcontroller]; navcontroller.modalpresentationstyle = uimodalpresentationformsheet; navcontroller.modaltransitionstyle = uimodaltransitionstylefliphorizontal; [editviewcontroller release]; [self presentmodalviewcontroller:navcontroller animated:yes]; </code></pre>,iphone | |
| javascript - displaying saved comment the name and comment are displayed next to each other rather than on top i want the js to be able to save the comment of the inputted name and comment and for it to be displayed after clicking the save comment button underneath the comments at the bottom. it does that but the name and the comment are side by side instead of on top of each other and looks confusing <pre><code>// utility functions for localstorage function setobject(key value) { window.localstorage.setitem(key json.stringify(value)); } function getobject(key) { var storage = window.localstorage value = storage.getitem(key); return value && json.parse(value); } function clearstorage() { window.localstorage.clear(); } // clear inputfields and localstorage function clearcomment(){ $( #txt1 ).val( ); $( #namebox ).val( ); clearstorage(); } function savecomment(){ var ctext = $( #txt1 ).val() cname = $( #namebox ).val() cmtlist = getobject( cmtlist ); if (cmtlist){ cmtlist.push({name: cname text: ctext}); setobject( cmtlist cmtlist); }else{ //add a comment setobject( cmtlist [{name: cname text: ctext}]); } bindcmt(); } function bindcmt(){ var cmtlistelement = $( #cmtlist ) cmtlist = getobject( cmtlist ); //out with the old cmtlistelement.empty(); //and in with the new $.each(cmtlist function(i k){ cmtlistelement.append( $( <p><span> + k.name + </span> + k.text + </p> ) ); }); } //get the comments on page ready $(function(){ bindcmt(); }); </code></pre> it looks like this: <img src= https://i.stack.imgur.com/xev6n.png alt= the nametest and commenttest are next to each other in the comments section >,javascript | |
| iphone: progress indicator in my app when i download something from service i show progress indicator: <pre><code> - (void)setupprogressindicator { mbprogresshud *progresshud = [[mbprogresshud alloc] initwithview:self.view]; [self.view addsubview:progresshud]; self.progressindicator = progresshud; [progresshud release]; } [self.progressindicator show:yes]; </code></pre> my view has navigation bar which i setup in my appdelegate and when indicator is shown i still can tup on navigation bar buttons...can mbprogresshub cover whole screen because i don t want to disable buttons on sync start and than make them enable on sync finish...i think indicator should cover whole screen. any ideas thanks...,iphone | |
| property ctlineref not found on object of type uitextview i m using the below statement for <code>uitext |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment