JAVA(Demo of Interface)---------------------

//Interface Example

interface InterfaceDemo

{

public void show();

public int display();

}

class A implements InterfaceDemo

{

public void message(int num)

{

System.out.println("Message method..."+num);

}

public void show()

{

System.out.println("show method...");

}

public int display()

{

System.out.println("display method...");

return(0);

}

}

class InrterfaceExample

{

public static void main(String jj[])

{

A a=new A();

a.message(5);

a.show();

a.display();

}

}
Output:-