hackjutsu

## Open the file with read only permit
f = open('myTextFile.txt', "r")

## use readlines to read all lines in the file
## The variable "lines" is a list containing all lines
lines = f.readlines()

## close the file after reading the lines.
f.close()

hackjutsu

def square(x):
    return x**2
    
squares = map(square, range(10))

hackjutsu

import re
testStr = "//gss0.baidu.com/6b1IcTe9R1gBo1vgoIiO_jowehsv/maps/services/thumbnails?width=525&height=295&quality=100&align=middle,middle&src=http://gss0.baidu.com/7LsWdDW5_xN3otqbppnN2DJv/lvpics/pic/item/8cb1cb134954092315ec8fd29258d109b2de4991.jpg"
pattern = "http.*jpg"

m = re.search(pattern, testStr)
print(m.group(0))
# http://gss0.baidu.com/7LsWdDW5_xN3otqbppnN2DJv/lvpics/pic/item/8cb1cb134954092315ec8fd29258d109b2de4991.jpg

hackjutsu

// If you are using Java 7, Files (in the standard library) is the best approach:
/* You can get Path from file also: file.toPath() */
Files.copy(InputStream in, Path target)
Files.copy(Path source, OutputStream out)

hackjutsu

var fs  = require("fs");

// Sync
var array = fs.readFileSync(path).toString().split('\n');

// Async
fs.readFile(path, function(err, f){
    var array = f.toString().split('\n');
    // use the array
});

hackjutsu

class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}

hackjutsu

public class ArrBlockingQueue {

    final private Lock _lock = new ReentrantLock();
    final private Condition _notFull  = _lock.newCondition();
    final private Condition _notEmpty = _lock.newCondition();

    final private Object[] _items;
    private int _putptr, _takeptr, _count;

    public ArrBlockingQueue(final int size) {

hackjutsu

var a = 10;
function add() {
  var b = 20;
  return a + b; // a is bound to the global a when the function object add() is created.
}

// call add() -> 30

(function() {
  var a = 20;

hackjutsu

mvn help:evaluate -Dexpression=settings.localRepository | grep -v '\[INFO\]'

hackjutsu

var fs = require('fs');
var dir = './tmp';

if (!fs.existsSync(dir)){
    fs.mkdirSync(dir);
}