public class Dog extends Animal implements Pet {
    public Dog(String name, int age) {
        super(name, age);
    }
    
    @Override
    public void makeSound() {
        System.out.println(getName() + " says: Woof! Woof!");
    }
    
    @Override
    public void play() {
        System.out.println(getName() + " is playing with a ball.");
    }
}