用Java程序完成以下場景(用繼承多態(tài))：有一個(gè)主人（Master類），他養(yǎng)了兩只寵物（Pet類）

public?class?Run?{

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public?static?void?main(String[]?args)?{

Master?master?=?new?Master();

master.feedDog("雞骨頭");

master.feedCat("雞骨頭");

}

}

class?Master?{

private?Pet?mPet;

private?Food?mFood;

public?void?feedCat(String?food)?{

mPet?=?new?Cat();

mFood?=?new?Food(food);

mPet.eat(mFood);

}

public?void?feedDog(String?food)?{

mPet?=?new?Dog();

mFood?=?new?Food(food);

mPet.eat(mFood);

}

}

class?Dog?extends?Pet{

@Override

public?void?eat(Food?food)?{

System.out.println("正在喂小狗吃"+food.getFood());

if?(food.getFood().matches(Food.BONE))?{

System.out.println("小狗正在吃"+food.getFood()+"！");

}else?{

System.out.println("但是小狗不喜歡吃"+food.getFood()+"!");

}

}

}

class?Cat?extends?Pet{

@Override

public?void?eat(Food?food)?{

System.out.println("正在喂小貓吃"+food.getFood());

if?(food.getFood().matches(Food.FISH))?{

System.out.println("小貓正在吃"+food.getFood()+"！");

}else?{

System.out.println("但是小貓不喜歡吃"+food.getFood()+"!");

}

}

}

class?Food?{

public?final?static?String?BONE?=?".*骨.*";

public?final?static?String?FISH?=?".*魚.*";

private?String?food;

public?String?getFood()?{

return?food;

}

public?void?setFood(String?food)?{

this.food?=?food;

}

public?Food(String?food)?{

this.food?=?food;

}

}

class?Pet?{

public?void?eat(Food?food)?{

}

}

Dog.java

public class Dog {

String dogName;

int dogAge;

public Dog()

{

dogName="大黃";

dogAge=5;

}

public void dogWalk()

{

System.out.println("挖得意的笑！挖得意的笑！");

}

}

public class Smalldog extends Dog{

}

public class Test {

public static void main(String[] args) {

Smalldog sd=new Smalldog();

System.out.println(sd.dogName);

System.out.println(sd.dogAge);

sd.dogWalk();

}

}

有一個(gè)java的編程題。編寫一個(gè)DOG類，它有名字（name）顏色（color）和年齡（age）三個(gè)屬性

class Dog{

private String name;

private String color;

private int age;

public Dog(String name,String color,int age){

this.name=name;

this.color=color;

this.age=age;

}

public void show(){

System.out.println("狗的名字："+name);

System.out.println("狗的顏色："+color);

System.out.println("狗的年齡："+age);

}

}

class DogText{

public static void main(String args[]){

Dog dog1=new Dog("來福","黑色",7);

Dog dog2=new Dog("旺財(cái)","白色",3);

dog1.show();

dog2.show();

}

}

求一個(gè)JAVA∶貓狗案例代碼

代碼如下

abstract class Dongwu {

void chi(){

System.out.println("吃");

}

}

interface Tiao{

void tiao();

}

interface Suan{

void suan();

}

class Mao extends Dongwu implements Tiao{

public void tiao() {

System.out.println("貓會(huì)跳高");

}

}

class Gou extends Dongwu implements Suan{

public void suan() {

System.out.println("狗會(huì)算數(shù)");

}

}

如果有幫助到你，請(qǐng)點(diǎn)擊采納

Java程序編寫寵物類并封裝

public?class?Pet?{

//pet的屬性

private?String?name;

private?int?age;

private?char?gengder;

//提供無參構(gòu)造方法

public?Pet()?{

super();

}

//提供有參構(gòu)造方法

public?Pet(String?name,?int?age,?char?gengder)?{

super();

this.name?=?name;

this.age?=?age;

this.gengder?=?gengder;

}

//提供get/set方法

public?String?getName()?{

return?name;

}

public?void?setName(String?name)?{

this.name?=?name;

}

public?int?getAge()?{

return?age;

}

public?void?setAge(int?age)?{

this.age?=?age;

}

public?char?getGengder()?{

return?gengder;

}

public?void?setGengder(char?gengder)?{

this.gengder?=?gengder;

}

//重寫tostring方法

@Override

public?String?toString()?{

return?"Pet?[name="?+?name?+?",?age="?+?age?+?",?gengder="?+?gengder?+?"]";

}

}

封裝的基本語法:

屬性私有化

提供無參和有參構(gòu)造方法

提供get/set方法

重寫tostring方法

JAVA代碼主人喂寵物吃東西狗只吃骨頭貓只吃魚求代碼

class 動(dòng)物{

public boolean 吃(食物 sw){

}

}

class 狗 extends 動(dòng)物{

public boolean 吃(食物 sw){

if(sw.種類 == 骨頭) return true;

else return false;

}

}

class 貓 extends 動(dòng)物{

public boolean 吃(食物 sw){

if(sw.種類 == 魚) return true;

else return false;

}

}

你還需要建立一個(gè) 食物 類。