Overriding example in java

public class First {

public static void main(String[] args) {
// TODO Auto-generated method stub
Second obj = new Third();
obj.Common();
Second obj1 = new Four();
obj1.Common();
Second obj2 = new Second();
obj2.Common();
Third obj3 = new Four();
obj3.Common();
}

}

public class Second {

void Common(){

System.out.println("Second class Common");

}

}

class Third extends Second{

void Common(){

System.out.println("Third class Common");

}

}

class Four extends Third{

void Common(){

System.out.println("Four class Common");

}

}

output:-

Third class Common

Four class Common

Second class Common

Four class Common