Java基于接口实现模拟动物声音代码实例

(1)编写接口Animal (Animal.java)

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

(2)编写模拟类Simulator (Simulator.java)

public class Simulator {
 public void playSound(Animal animal) {
   System.out.print("正在播放模拟" + animal.getAnimalName() +"的声音：");
   animal.cry();
 }
}

(3)编写Dog类和Cat类 (Dog.java、Cat.java)

Dog类：

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

Cat类：

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

(4)编写主类Application (Application.java)

public class Application{
 public static void main(String[] args) {
   Simulator simulator = new Simulator();
   simulator.playSound(new Dog());
   simulator.playSound(new Cat());
 }
}

来源：https://www.cnblogs.com/chenrengu/p/13171774.html