接口：动物声音模拟器

package 接口模拟器;

public class Simulator {
        void playSound(Animal animal){
            System.out.println("动物的种类是："+animal.getAnimalName());
            animal.cry();
        }
        }

package 接口模拟器;

public interface Animal {
        abstract void cry();
        abstract String getAnimalName();
        }

package 接口模拟器;

public class Dog implements Animal {
    public void cry() {
        System.out.println("汪汪......");
    }
public  String getAnimalName() {
        return "狗";
    }
    }

package 接口模拟器;

public class Cat implements Animal{
    public void cry() {
        System.out.println("喵喵......");
    }
    public String getAnimalName() {
        return "猫";
    }
    }

package 接口模拟器;

public class Application {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Simulator simulator=new Simulator();
        simulator.playSound(new Dog());
        simulator.playSound(new Cat());

    }

}