Question

use the animal examples and recreate your animal project you created for the Polymorphism project and use interfaces instead of classes.

=============================================================================

public class Animal {

    public void makeSound(){
        System.out.println("“The animal is making a sound...”.");
    }


}

=============================================================================

public class Horse extends Animal {

    @Override
    public void makeSound() {

        System.out.println(" “Whinny”, “Neigh”or “Hi, I’m Mr. Ed.”");
    }
}

=============================================================================

public class Cow extends Animal {

    @Override
    public void makeSound() {
        System.out.println(" “BoWow”, BoWoW, Cow Cow");
    }
}

=============================================================================

public class Dog extends Animal {

    @Override
    public void makeSound() {

        System.out.println("Bark Bark !! !! Bark");
    }
}

=============================================================================

public class Hen extends Animal {

    @Override
    public void makeSound() {
        System.out.println("Chirp!Chirp!!Chirp!!! Hen");
    }
}

=============================================================================

public class AnimalWorld {

    public static void main(String[] args) {


        Animal horse = new Horse();
        Animal dog = new Dog();
        Animal cow = new Cow();
        Animal hen = new Hen();

        System.out.print("Horse sounds:");
        horse.makeSound();
        System.out.print("Dog sounds:");
        dog.makeSound();
        System.out.print("Cow sounds:");
        cow.makeSound();
        System.out.print("Hen sounds:");
        hen.makeSound();
    }
}

Answer 1

public class Animal {

public void makeSound(){
System.out.println("“The animal is making a sound...”.");
}

}
=============================================================================

public class Horse extends Animal {

@Override
public void makeSound() {

System.out.println(" “Whinny”, “Neigh”or “Hi, I’m Mr. Ed.”");
}
}
=============================================================================

public class Cow extends Animal {

@Override
public void makeSound() {
System.out.println(" “BoWow”, BoWoW, Cow Cow");
}
}
=============================================================================

public class Dog extends Animal {

@Override
public void makeSound() {

System.out.println("Bark Bark !! !! Bark");
}
}
=============================================================================

public class Hen extends Animal {

@Override
public void makeSound() {
System.out.println("Chirp!Chirp!!Chirp!!! Hen");
}
}
=============================================================================

public class AnimalWorld {

public static void main(String[] args) {

Animal horse = new Horse();
Animal dog = new Dog();
Animal cow = new Cow();
Animal hen = new Hen();

System.out.print("Horse sounds:");
horse.makeSound();
System.out.print("Dog sounds:");
dog.makeSound();
System.out.print("Cow sounds:");
cow.makeSound();
System.out.print("Hen sounds:");
hen.makeSound();
}
}