More than one Main Function in a Single Java File

// MyClass.java

import java.io.*;

class YourClass

{

   public static void main(String[] args)

   {

      System.out.println("Hello from YourClass");

   }

}

class MyClass

{

   public static void main(String[] args)

   {

      System.out.println("Hello from MyClass");

      YourClass.main(null);

   }

}

If you compile this program with JDK 1.6, two class files will be generated - MyClass.class and YourClass.class.

If you then run MyClass, you should see the following output:

   Hello from MyClass
   Hello from YourClass

The program will also work without error if you run YourClass but the output then will be the single line:

   Hello from YourClass