Method overloading with polymorphic instances

PolymorphicMethodOverloading.java

public class PolymorphicMethodOverloading {

    public static void main(String[] args) {
        Consumer consumer = new Consumer();
        Parent p1 = new Parent();
        Parent p2 = new Child1();
        Parent p3 = new Child2();
        Child1 p4 = new Child1();
        Child2 p5 = new Child2();

        consumer.print(p1);
        consumer.print(p2);
        consumer.print(p3);
        consumer.print(p4);
        consumer.print(p5);

        consumer.print((Child1) p2);
        consumer.print((Child2) p3);
        consumer.print((Parent) p4);
        consumer.print((Parent) p5);
    }
}

class Consumer {

    void print(Child1 obj) {
        System.out.println("Calling Consumer.print(Child1) :: " + obj.getClass());
    }

    void print(Child2 obj) {
        System.out.println("Calling Consumer.print(Child2) :: " + obj.getClass());
    }

    void print(Parent obj) {
        System.out.println("Calling Consumer.print(Parent) :: " + obj.getClass());
    }
}

class Parent {
}

class Child1 extends Parent {
}

class Child2 extends Parent {
}