Major Languages Used for Teaching and Working

According to Wesley Chun from Google,  the main languages used at Google for production work are:

• C++
• Java
• Python

Main languages used for teaching children are:

• scratch
• Alice
• Visual Basic
• Python

In this video, Wesley Chun is using video to teach a class to children.  It gives an overview of Google App Engine.  There's also some examples of how Python is used at places like Google and Yahoo.  

Scripting Language Versus Compiled Language

After reviewing some of the basic slides that John Zelle put up about Teaching Computer Science with Python, my student asked me what a scripting language was.  I compared Python to C and then threw in Java, a byte compiled language, to round out the comparison.

Program in C.

/* Hello World program */
#include<stdio.h>
main()

{   

printf("Hello World");

}

 Since we're on a Mac, the command in the terminal is:

gcc -o helloworld helloworld.c

Program in Java

class HelloWorldApp{     

public static void main(String[] args) {         

System.out.println("Hello World!"); // Display the string.    

}

}

byte compile the Java code:

javac HelloWorldApp.java

Run it:

java HelloWorldApp

Python

print ("Hello World")