java多态实现电子宠物系统

java多态实现电子宠物系统

本文实例为大家分享了java多态实现电子宠物系统的具体代码，供大家参考，具体内容如下

效果实现：

代码实现：

1、主人类：

public class Master {

//领养

public Pet adopt(String name){

if ("狗狗".equals(name)){

return new Dog();

}else if (name.equals("企鹅")){

return new Penguin();

}

return null;

}

//喂食

public void feed(Pet pet, String food){

pet.http://eat(food);

}

//玩耍

public void play(Pet pet){

if(pet instanceof Dog){

Dog d= (Dog) pet;

d.catchDisk();

}else if(pet instanceof Penguin){

Penguin p= (Penguin) pet;

p.swimInSouth();

}

}

//捐献

public Pet donate(String name){

if("狗狗".equals(name)){

return new Dog();

}else if(name.equals("企鹅")){

return new Penguin();

}

return null;

}

}

2、狗狗类：

public class Dog extends Pet {

public void catchDisk(){

System.out.println("狗狗接飞盘！");

}

public Dog(int health) {

super(health);

}

public Dog() {

}

@Override

public void eat(String food) {

System.out.println("狗狗吃"+food+"，吃饱后健康值+3");

setHealth(getHealth()+3);

}

}

3、企鹅类：

public class Penguin extends Pet{

public void swimInSouth(){

System.out.println("企鹅在南极游泳！");

}

public Penguin(int health) {

super(health);

}

public Penguin() {

}

@Override

public void eat(String food) {

System.out.println("企鹅宝宝吃"+food+",吃完后，健康值加5");

setHealth(getHealth()+5);

}

}

4、宠物类，Pet：

public class Pet {

private int health;

public int getHealth() {

return health;

}

public void setHealth(int health) {

this.health = health;

if(this.health>100){

this.health=100;

System.out.println("已经吃饱了，再吃就撑破了");

}

}

public Pet() {

}

public Pet(int health) {

this.health = health;

}

public void eat(String food){

System.out.println("宠物吃"+food);

}

}

5、测试类：

public class Test {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

Master master = new Master();

//领养

System.out.CrRztsFEttprint("请输入您要领养的宠物：");

String dname = sc.next();

Pet p = master.adopt(dname);

//主人给狗狗喂食，玩耍

System.out.print("请输入您要喂得食物：");

String dfood = sc.next();

master.feed(p,dfood);

System.out.println(p.getHealth());

master.play(p);

//主人给企鹅喂食，玩耍

System.out.print("请输入您要玩的宠物：");

String pname = sc.next();

p = master.adopt(pname);

System.out.print("请输入您要喂的食物：");

String pfood = sc.next();

master.feed(p,pfood);

System.out.println(p.getHealth());

master.play(p);

//捐赠出去

System.out.print("请输入您要捐赠的宠物：");

String jname = sc.next();

Pet pet = master.donate(jname);

System.out.println();

System.out.println("您捐献的是："+pet.getClass().getName());

}

}

补：这里测试类我是让用户在控制台输入，如果不想输入，可将测试类Test换成下面的代码：

public class TestPet {

public static void main(String[] args) {

Master m = new Master();

//领养

Pet p = m.adopt("狗狗");

//主人给狗狗喂食，玩耍

m.feed(p,"大骨头");

System.out.println(p.getHealth());

http:// m.play(p);

//主人给企鹅喂食，玩耍

p = m.adopt("企鹅");

m.feed(p,"小鱼");

System.out.println(p.getHealth());

m.play(p);

//捐献出去

Pet pet = m.donate("狗狗");

System.out.println("您捐献的是："+pet.getClass().getName());

}

}

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。