What is Java?

     Java allows you to play online games, chat with people around the world, calculate your mortgage interest, and view images in 3D, just to name a few. It's also integral to the intranet applications and other e-business solutions that are the foundation of corporate computing.nerating HTML pages.

First Java Program:-

../ The smallest Java program possible
public class HelloWorld
public static void main(String[] args)
System.out.println("Hello World");

Step to Run this Program:-

     Write above code on notepad and save it with name.

1-To Run this program you need java to install on your computer if you dont have download it from here

2-After installing java set classpath (step is given below):-

  • Goto My computer properties -> Advanced -> Environment variable
  • Select path and click Edit
  • Add there your java installation directory bin folder path and click ok
  • Now classpath is set for java

3-Goto Start ->Run -> cmd. 

4-Goto that directory where you save file with "cd directoryname" command.

5-Then type javac

6-Then type java helloworld.

7-The system should write "Hello World" on the command line.