宠物类：

/** * @author Mr.Wang * 宠物类 * */public class Animals {    private int health;//健康值    private int love;//亲密度    private String name;//名字    private String sex;//性别    public int getHealth() {        return health;    }    public void setHealth(int health) {        if(health<0||health>100){            //System.out.println("健康值应该在0至100之间，默认值为60。");            this.health=60;            return;        }        this.health = health;    }    public int getLove() {        return love;    }    public void setLove(int love) {        this.love = love;            }        public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getSex() {        return sex;    }    public void setSex(String sex) {        this.sex = sex;    }        public Animals() {}    public Animals(int health, int love, String name,String sex) {        if(health<0||health>100){            System.out.println("健康值应该在0至100之间，默认值为60。");            this.health=60;        }else {            this.health = health;        }        this.love = 60;        this.name = name;        this.sex = sex;    }    //宠物自白    public String toString() {        System.out.println("宠物的自白：");        return "我的名字叫"+this.getName()+"，我是"+this.getSex()+"，健康值是"+this.getHealth()+",初始亲密度为"+this.getLove();             }}

 

企鹅类：

/** * @author Mr.Wang * 企鹅类 * */public class Penguin extends Animals{        public Penguin(int health, int love, String name,String sex) {        super(health, love, name,sex);    }    }

 

狗狗类：

/** * @author Mr.Wang * 狗狗类 * */public class Dog extends Animals{        public Dog(int health, int love, String name,String sex) {        super(health, love, name,sex);    }    }

 

测试类：

import java.util.Scanner;public class Text01 {    static Scanner input = new Scanner(System.in);    public static void main(String[] args) {        String sex;        int love = 60;        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：");        String name = input.next();        System.out.print("请选择要领养的宠物类型：(1、狗狗  2、企鹅)");        int choose = input.nextInt();        switch (choose) {        case 1:            System.out.println("请选择狗狗的性别：(1、雄性   2、雌性)");            int choose1 = input.nextInt();            if(choose1 == 1) {                sex = "雄性";            }else {                sex = "雌性";            }            System.out.println("请输入狗狗的健康值：(0~100)");            int health = input.nextInt();            System.out.println("我的亲密度初始值为60。");            Dog dog = new Dog(health, love, name, sex);            String str = dog.toString();            System.out.println(str);            break;        case 2:            System.out.println("请选择企鹅的性别：(1、Q仔   2、Q妹)");            int choose2 = input.nextInt();            if(choose2 == 1) {                sex = "Q仔";            }else {                sex = "Q妹";            }            System.out.println("请输入企鹅的健康值：(0~100)");            int health1 = input.nextInt();            System.out.println("我的亲密度初始值为60。");            Penguin penguin = new Penguin(health1, love, name, sex);            String str1 = penguin.toString();            System.out.println(str1);            break;        default:            System.out.println("欢迎使用宠物商店！");            break;        }    }}

运行结果：