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萌宠菠菠乐园
2026-02-19 07:32

#分析以下需求,并用代码实现：

1.定义动物类属性：年龄，颜色行为:eat(String something)方法(无具体行为,不同动物吃的方式和东西不一样,something表示吃的东西)生成空参有参构造，set和get方法

2.定义狗类继承动物类行为:eat(String something)方法,看家lookHome方法(无参数)

3.定义猫类继承动物类行为:eat(String something)方法,逮老鼠catchMouse方法(无参数)

4.定义Person类属性：姓名，年龄行为：keepPet(Dog dog,String something)方法功能：喂养宠物狗，something表示喂养的东西行为：keepPet(Cat cat,String something)方法功能：喂养宠物猫，something表示喂养的东西生成空参有参构造，set和get方法

5.定义测试类(完成以下打印效果): keepPet(Dog dog,String somethind)方法打印内容如下：年龄为30岁的老王养了一只黑颜色的2岁的宠物2岁的黑颜色的狗两只前腿死死的抱住骨头猛吃 keepPet(Cat cat,String somethind)方法打印内容如下：年龄为25岁的老李养了一只灰颜色的3岁的宠物3岁的灰颜色的猫眯着眼睛侧着头吃鱼

#我的分析

猫类：颜色,年龄,吃东西(鱼){},抓老鼠(){} 狗类：颜色,年龄,吃东西(骨头){},看家(){} 人类：姓名,年龄,喂狗(){},喂猫(){} 猫狗有共性，提取一个父类(Pet) 抽象宠物类:颜色,年龄,食物,吃东西(食物);猫类：继承宠物类狗类：继承宠物类

package com.itheima6; //抽象宠物类 public abstract class Pet {private String color;private int age;public Pet() {}public Pet(String color,int age) {this.color = color;this.age = age;}public String getColor() {return color;}public void setColor(String color) {this.color = color;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public abstract void eat(String food); }

package com.itheima6; //猫类 public class Cat extends Pet{public Cat() {}public Cat(String color,int age) {super(color,age);}@Overridepublic void eat(String food) {// TODO Auto-generated method stubSystem.out.println(this.getAge()+"岁的"+this.getColor()+"颜色的"+"猫眯着眼睛侧着头吃"+food);}public void catchMouse() {System.out.println("猫抓老鼠");} }

package com.itheima6; //狗类 public class Dog extends Pet {public Dog() {}public Dog(String color, int age) {super(color, age);}@Overridepublic void eat(String food) {// TODO Auto-generated method stubSystem.out.println(this.getAge() + "岁的" + this.getColor() + "颜色的" + "狗两只前腿死死地抱住" + food + "猛吃");}public void lookHome() {System.out.println("狗看门");} }

package com.itheima6; //人类 public class Person {private String name;private int age;public Person() {}public Person(String name, int age) {this.name = name;this.age = age;}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 void keepPet(Pet p, String food) {if (p instanceof Dog) {Dog d = (Dog) p;System.out.println("年龄为" + age + "岁的" + name + "养了一只" + d.getColor() + "颜色的" + d.getAge() + "岁的宠物");d.eat(food);} else if (p instanceof Cat) {Cat c = (Cat) p;System.out.println("年龄为" + age + "岁的" + name + "养了一只" + c.getColor() + "颜色的" + c.getAge() + "岁的宠物");c.eat(food);}} }

package com.itheima6; public class Test {public static void main(String[] args) {Dog d = new Dog("黑", 2);Person p2 = new Person("老王", 30);p2.keepPet(d, "骨头");Cat c = new Cat("灰", 3);Person p = new Person("老李", 25);p.keepPet(c, "鱼");} }

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