inheritance/AnimalTest.java

public class AnimalTest {
    public static void main(String[] args) {
        // Create various animal objects
        Animal[] animals = {
            new Fish("Nemo", 1, 2.5),
            new Dog("Rex", 3),
            new Cat("Whiskers", 2),
            new Bird("Tweety", 1)
        };
        
        // Test makeSound() method for all animals
        System.out.println("=== Animal Sounds ===");
        for (Animal animal : animals) {
            animal.makeSound();
        }
        System.out.println();
        
        // Test play() method of Pet interface
        System.out.println("=== Pet Play Behavior ===");
        for (Animal animal : animals) {
            if (animal instanceof Pet) {
                Pet pet = (Pet) animal;
                pet.play();
            } else {
                System.out.println(animal.getName() + " is not a pet and cannot play.");
            }
        }
        System.out.println();
        
        // Test Fish's special swim() method
        System.out.println("=== Fish Special Behavior ===");
        Fish fish = new Fish("Dory", 2, 3.8);
        fish.swim();
    }
}