Multilevel Hierarchy

class A{
    A(){
        System.out.println("This is class A");
    }
}
class B extends A{
    B(){
        System.out.println("This is class B");
    }
}
class C extends B{
    C(){
        System.out.println("This is class C");
    }
}
public class Main{
    public static void main(String args[]){
        C c = new C();
    }
}