Coffee Space 
Below is an incredibly simple example of code that can be written in Java. In the example, “Hello World” is printed 5 times with the number of the print proceeding the String.
To use the code, save the following code block to a file called HelloWorld.java. To compile, run javac HelloWorld.java and then java HelloWorld to run.
0001 /**
0002 * HelloWorld.java
0003 *
0004 * This class is a simple demonstration for the basics of Java.
0005 *
0006 * @author B[]Array
0007 **/
0008 public class HelloWorld{
0009 /**
0010 * main()
0011 *
0012 * Program entry point responsible for creating an instance the
0013 * HelloWorld class.
0014 *
0015 * @param args The command line arguments to the program.
0016 **/
0017 public static void main(String[] args){
0018 // Instantiate and store an instance of HelloWorld
0019 HelloWorld hw = new HelloWorld(5);
0020 // Program self terminates here
0021 }
0022
0023 /**
0024 * HelloWorld()
0025 *
0026 * Constructor for class, responsible for running all code in instance.
0027 *
0028 * @param count The number of lines "Hello World" lines to be printed.
0029 **/
0030 public HelloWorld(int count){
0031 // Itterate over the number of prints we wish to do
0032 for(int i = 0; i < count; i++){
0033 // Print line with line number
0034 System.out.println(i + " Hello World");
0035 }
0036 }
0037 }
As you can see, Java is a really quick and easy program to get started with!