dave45678 / basicoop Goto Github PK

public interface IAnimal {
    public String sleep();
    public String eat();
}

public interface IVolador {
    public String fly();
}

public class Animal implements IAnimal {
    private String color;
    private String name;
...

public class Bird extends Animal implements IVolador{

    public Bird() {
        // super();
        System.out.println("A bird is hatched...");
    }
...

public class AnimalApp {
    List<IAnimal> list;

    public AnimalApp(List<IAnimal> list){
        this.list = list;
    }

    public static void main(String[] args) {
        List<IAnimal> animales = new ArrayList<>();
        IAnimal a = new Animal();
        IAnimal c = new Cat();
        IAnimal b = new Bird();
        animales.add(a);
        animales.add(b);
        animales.add(c);

        AnimalApp system = new AnimalApp(animales);

    }

 * All Birds are Animals but all Animals are not Birds
 
    public class Bird extends Animal {
    public Bird() {
        // super();
        System.out.println("A bird is hatched...");
    }

    @Override
    public String sleep() {
        return "A bird sleeps soundly...";
    }

    @Override
    public String eat() {
        return "A bird eats...";
    }
}

* Class FlyingBird

      public class FlyingBird extends Bird {
               public String fly(){
               return "A bird flies...";
              }
      }

 * Example 

     public class Pinguino extends Bird {
        public Pinguino() {
            // super();
            System.out.println("A bird is hatched...");
        }

        @Override
        public String sleep() {
            return "A bird sleeps soundly...";
        }

        @Override
        public String eat() {
            return "A bird eats...";
        }

    }

    public class Sparrow extends FlyingBird {
        public Sparrow() {
            // super();
            System.out.println("A bird is hatched...");
        }

        @Override
        public String sleep() {
            return "A bird sleeps soundly...";
        }

        @Override
        public String eat() {
            return "A bird eats...";
        }

        @Override
        public String fly() {
            return "A bird flies...";
        }
 }