Experiment Continue

Comment out the first constructor for Child:

class Child extends Parent {
/* Child() {
        System.out.println("Creating the Child");
   }
*/
   Child(boolean flag) {
        System.out.println("Creating the Child with parameter");
   }
}

Comment out the first constructor for GrandChild as well:

class GrandChild extends Child {
/* GrandChild() {
        System.out.println("Creating the GrandChild");
   }
*/
   GrandChild(boolean flag) {
        System.out.println("Creating the GrandChild with parameter");
   }
   . . .
}