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());
  }
}

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