How many objects are created due to inheritance in java?

Question

Let\'s say I have three classes:

class A {
    A() {
        // super(); 
        System.out.println(\"class A\");
    }
}
class B extends A {
    B() {
             


        

Answer 1

I am not sure how polymorphism/overriding works at the time of GC.

But it should be worth a try to override finalize method in all your classes and check when JVM exits main method.

• If only C object is created, it should call finalize for 'C'.
• If all A,B, C object is created, it should call finalize for A,B, C.

I think this is simplest check you can apply.

class A {
    A() {
        //Super(); 
        System.out.println("class A");
    }

    public void finalize(){
    System.out.println("Class A object destroyed");
    }
}
class B extends A {
    B() {
       //Super(); 
        System.out.println("class B");
    }

    public void finalize(){
    System.out.println("Class B object destroyed");
    }
}
class C extends B {
    public static void main(String args[]) {
        C c = new C(); //Parent constructor will get call 
    }

    public void finalize(){
    System.out.println("Class C object destroyed");
    } 
}