MarounMaroun

// defining a simple function that returns the current time
def getTime = System.currentTimeMillis

// defining a function, by NAME, that prints two times: now and one second later
def getTimeByName(f: => Long) = { println(f); Thread.sleep(1000); println(f)}

// defining it again, but this time, by VALUE
def getTimeByValue(f: Long) = { println(f); Thread.sleep(1000); println(f)}

getTimeByName(getTime)

MarounMaroun

from lxml import etree
import urllib

web = urllib.urlopen("https://aws.amazon.com/ec2/instance-types")
s = web.read()

html = etree.HTML(s)

tr_nodes = html.xpath('//*[@id="aws-page-content"]/div/div/main/section/div[2]/div[43]/div/table/tbody/tr')

MarounMaroun

repos=$(curl -s https://api.github.com/users/{USER}/repos?per_page=1000 | grep -oP "(?<=clone_url\": \").*(?=\")")
echo "$repos" | while read line ; do
   git clone $line
done

MarounMaroun

/**
 * Assume we are interested in finding the first two even numbers in a very big file.
 * Since we love functional programming, we don't want to use the traditional for loops.
 * Instead, we want to apply a series of function to get the desired output.
 */

// for the sake of the example, I assume the input is found in a list, not a file
var l = List(1, 47, 38, 53, 51, 67, 39, 46, 93, 54, 45, 33, 87, 96, 100, 4, 84, 17, 31, 81, 88, 35, 36)

// we don't really need toList here, but since we're assuming the data is coming from a file, I'll use it anyway

MarounMaroun

object Singleton {
  private var i = 0

  def create(): Int = {
    i += 1
    i
  }
}

Singleton.create() // 1

MarounMaroun

/**
 * Case classes define a factory method for creating instances:
 *   - lines 24-25 don't have the "new" keyword.
 *
 * Case classes generate implementations of toString, hashCode and quals:
 *   - see output in lines 24-27
 * 
 * Much more differences, like immutability and generation of companion object.
 *
 * Note that in order to run the snippet below, use "scala" directly, don't attempt to compile with "scalac".

MarounMaroun

# add PPA
sudo add-apt-repository ppa:webupd8team/java
# install the installer script
sudo apt update; sudo apt install oracle-java8-installer
# optional - set env vars
sudo apt install oracle-java8-set-default

MarounMaroun

"It is literally true that you can succeed best and quickest by helping others to succeed" - Napoleon Hill

If you've ever been interested in programming or anything related to, and been around the net long enough, you've came across Stack Overflow, accidentally or on purpose.

What is Stack Overflow?

Stack Overflow is a question and answer site for professional and enthusiast programmers. It's built and run by you as part of the Stack Exchange network of Q&A sites. With your help, we're working together to build a library of detailed answers to every question about programming

It was almost four years ago when I asked my first question in Stack Overflow (as a guest), got down-voted and my question was closed. Back then, I didn't know why was that; all what I asked for was a solution for my homework, and by saying "solution" I mean a full solution. I didn't expect comments like:

MarounMaroun

# Ubuntu
sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator

# Fedora
yum install terminator

MarounMaroun

[global_config]
  enabled_plugins = LaunchpadCodeURLHandler, APTURLHandler, LaunchpadBugURLHandler
[keybindings]
  broadcast_all = <Primary>g
  broadcast_group = <Primary><Shift>underscore
  broadcast_off = <Primary><Shift>g
  close_window = <Primary><Shift>q
  move_tab_left = <Shift><Alt>Page_Down
  move_tab_right = <Shift><Alt>Page_Up
  next_tab = <Alt>2