PetShop2.0(应用继承 extends）Pet.javapublicclass Pet{private String name;private String color;privateintage;public String getName() {returnname;}publicvoid setName(String name) {this.name = name;}public String getColor() {returncolor;}publicvoid setColor(String color) {this.color = color;}publicint getAge() {returnage;}publicvoid setAge(int age) {this.age = age;}public Pet(String name, String color, int age) {super();this.name = name;this.color = color;this.age = age;}}Dog.javapublicclass Dog extends Pet {private String type;public Dog(String name, String color, int age, String type) {super(name, color, age);this.type = type;}public String getType() {returntype;}publicvoid setType(String type) {this.type = type;}publicvoid eat(){System.out.println("I like eating bone!");}}Cat.javapublicclass Cat extends Pet {privatedoubleweight;public Cat(String name, String color, int age, double weight) {super(name, color, age);this.weight = weight;}publicdouble getWeight() {returnweight;}publicvoid setWeight(double weight) {this.weight = weight;}publicvoid eat(){System.out.println("I like eating fish!");}}Mouce.javapublicclass Mouce extends Pet{private String sex;public Mouce(String name, String color, int age, String sex) {super(name, color, age);this.sex = sex;}public String getSex() {returnsex;}publicvoid setSex(String sex) {this.sex = sex;}}PetShop.javapublicclass PetShop {private Pet[] pets;privateintpetActuralCount;publicstaticfinalintPET_COUNT=100;public PetShop(){super();pets=new Pet[PET_COUNT];}publicboolean add(Pet pet){boolean result=false;if(petActuralCount
