Basics of instanceof and Downcasting

In this problem, you will create a program that checks the types of Dog and Cat objects stored in an Animal array using instanceof, downcasts them to call subclass-specific methods (fetch() and purr()), and displays the result to standard output.

Learning Objective: Understand using instanceof for type checking and downcasting to call subclass-specific methods

Overview

Check the actual type of objects stored in Animal type variables using instanceof, then downcast to call subclass-specific methods.

Specifications

1. Define String name field and constructor in Animal class
2. Dog extends Animal, fetch() prints <name> fetches the ball!
3. Cat extends Animal, purr() prints <name> purrs...
4. In main, store Dog("Rex") and Cat("Mimi") in Animal array
5. Loop and check type with instanceof, call appropriate method

Output Format

Rex fetches the ball!
Mimi purrs...