Abstract class example 2

public class First {

public static void main(String[] args) {
// TODO Auto-generated method stub
Third obj = new four();
obj.First();
obj.like();
obj.display();
}

}

public class Second {

void display(){

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

}

}

abstract class Third extends Second{

abstract void First();

void like(){

System.out.println("like");

}

}

class four extends Third{

void First(){

System.out.println("Testing Third Display");

}

}

output:-

Testing Third Display

like

Testing display