Create Hello World in Java

Here is simple java basic:

Create HelloWorld.java with code

public class HelloWorld {

    /**
     * @param args
     */
    public static void main(String[] args) {
        System.out.println("Hello world");
    }

}



C:\>set Path=C:\Program Files\Java\jdk1.7.0_45\bin
C:\>javac HelloWorld.java
C:\>java HelloWorld
Hello world

or you can set system variable so no need to set Path=C:\Program Files\Java\jdk1.7.0_45\bin
Path=.........;C:\Program Files\Java\jdk1.7.0_45\bin

Refference: http://www.instructables.com/id/Programing-with-Java-using-Command-Prompt/