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宠物类继承与多态示例

萌宠菠菠乐园
2024-12-20 09:34

/**
* 抽象的父类：一旦有继承关系存在，此时new无任何意义
*/
public abstract class Animal {
   private String name;
   private int health;
   private int love;

   public Animal(String name, int health, int love) {
       super();
       this.name = name;
       setHealth(health);
       this.love = love;
   }

   public String getName() {
       return name;
   }

   public void setName(String name) {
       this.name = name;
   }

   public int getHealth() {
       return health;
   }

   public void setHealth(int health) {
       if (health >= 1 && health <= 100) {
           this.health = health;
       } else {
           System.out.println("健康状况应该在1-100之间");
           this.health = 10;
       }
   }

   public int getLove() {
       return love;
   }

   public void setLove(int love) {
       this.love = love;
   }

   public void shout() {
       System.out.println("宠物的自白");
       System.out.println("我的名字叫" + name + "n我的健康值" + health + "我和主人的亲密程度是"
               + love);
   }

}

//Animal的两个子类

public class Dog extends Animal{

      private String breed;
   public Dog(String name, int health, String breed, int love) {
       super(name,health,love);
       setBreed(breed);
   }

      public void shout() {
       super.shout();
       System.out.println("我的品种是" + breed);
   }

   public String getBreed() {
       return breed;
   }

   public void setBreed(String breed) {
       this.breed = breed;
   }

}

public class Penguin extends Animal {
private String sex;

   public Penguin(String name, int health, String sex, int love) {
       super(name, health, love);
       setSex(sex);
   }

   public String getSex() {
       return sex;
   }

   public void setSex(String sex) {
       this.sex = sex;
   }

   public void shout() {
       super.shout();
       System.out.println("我的性别是" + sex);
   }
}

//主人

public class Master {

      public void cure(Dog dog) {
       // 如果狗的健康状况不佳
       if (dog.getHealth() < 50) {
           System.out.println("去医院看病");
           System.out.println("打针");
           System.out.println("吃药");
           // 治疗后，狗的健康状况变为60
           dog.setHealth(60);
       }
   }

   public void cure(Penguin penguin) {
       // 如果企鹅的健康状况不佳
       if (penguin.getHealth() < 50) {
           System.out.println("去医院看病");
           System.out.println("吃药");
           System.out.println("疗养");
           // 治疗后，企鹅的健康状况变为70
           penguin.setHealth(70);
       }
   }
}

//宠物商店

import java.io.IOException;
import java.util.Scanner;

public class PetShop {
   public static void main(String[] args) {
       Dog dog=null;
       Penguin penguin=null;
       System.out.println("欢迎来到宠物商店");
       System.out.println("请输入要领养的宠物的名字");
       Scanner input = new Scanner(System.in);
       String name = input.next();
       System.out.println("请输入你要领养的宠物的类型：（1 狗狗 2 企鹅)");
       int type = input.nextInt();
       switch (type) {
       case 1:
           System.out.println("请输入狗的品种(1 聪明的拉布拉多犬 2 酷酷的雪纳瑞)");
           int breed = input.nextInt();
           System.out.println("请输入狗的健康值");
           int health = input.nextInt();
           String s = "";
           if (breed == 1) {
               s = "聪明的拉布拉多犬";
           } else {
               s = "酷酷的雪纳瑞";
           }
           dog = new Dog(name, health, s, 20);
           dog.shout();
           break;
       case 2:
           System.out.println("请输入企鹅的性别(1Q仔 2Q妹)");
           int sex = input.nextInt();
           System.out.println("请输入企鹅的健康值");
           health = input.nextInt();
           s = "";
           if (sex == 1) {
               s = "Q仔";
           } else {
               s = "Q妹";
           }
           penguin = new Penguin(name, health, s, 30);
           penguin.shout();

       }
       //创建主人
       Master master=new Master();
       master.cure(dog);
       dog.shout();
       master.cure(penguin);
       penguin.shout();
       try {
           System.in.read();
       } catch (IOException e) {
           e.printStackTrace();
       }

}

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