首页 > 分享 > 1.需求：java编写一个宠物类Pet，属性: id,name,health,love ;重写父类toString()方法 o两个子类狗狗和猫类，狗狗有品种(strain),猫类有爱好(hobby),重写父类toString()方法 o宠物饿了，需要主人给宠物喂食，狗狗吃狗粮、猫咪吃小鱼，吃完之后健康值狗狗增加3，猫咪增加5。

1.需求：java编写一个宠物类Pet，属性: id,name,health,love ;重写父类toString()方法 o两个子类狗狗和猫类，狗狗有品种(strain),猫类有爱好(hobby),重写父类toString()方法 o宠物饿了，需要主人给宠物喂食，狗狗吃狗粮、猫咪吃小鱼，吃完之后健康值狗狗增加3，猫咪增加5。

萌宠菠菠乐园
2024-12-09 02:22

好的，下面是代码实现：

public [class](https://wenku.csdn.net/doc/6401ac18cce7214c316ea9b4?spm=1055.2569.3001.10083) Pet { private int id; private String name; private int [health](https://wenku.csdn.net/doc/7snvwd8q6g?spm=1055.2569.3001.10083); private int love; public Pet(int id, String name, int health, int love) { this.id = id; this.name = name; this.health = health; this.love = love; } public void eat() { [system](https://wenku.csdn.net/doc/6412b784be7fbd1778d4a95f?spm=1055.2569.3001.10083).out.[print](https://wenku.csdn.net/doc/6401acb5cce7214c316ecd5e?spm=1055.2569.3001.10083)ln(name + " is eating."); if (this instanceof Dog) { health += 3; } else if (this instanceof Cat) { health += 5; } } @Override public String toString() { return "Pet{" + "id=" + id + ", name='" + name + ''' + ", health=" + health + ", love=" + love + '}'; } } public class Dog extends Pet { private String strain; public Dog(int id, String name, int health, int love, String strain) { [super](https://wenku.csdn.net/doc/6401ad2bcce7214c316ee8d3?spm=1055.2569.3001.10083)(id, name, health, love); this.strain = strain; } @Override public String toString() { return "Dog{" + "id=" + getId() + ", name='" + getName() + ''' + ", health=" + getHealth() + ", love=" + getLove() + ", strain='" + strain + ''' + '}'; } } public class Cat extends Pet { private String hobby; public Cat(int id, String name, int health, int love, String hobby) { super(id, name, health, love); this.hobby = hobby; } @Override public String toString() { return "Cat{" + "id=" + getId() + ", name='" + getName() + ''' + ", health=" + getHealth() + ", love=" + getLove() + ", hobby='" + hobby + ''' + '}'; } }

以上代码定义了Pet类和两个子类Dog和Cat。Pet类中定义了id、name、health、love四个属性和eat()方法。eat()方法用于宠物吃东西，根据宠物类型不同，增加健康值也不同。Dog类和Cat类分别继承了Pet类，Dog类中定义了strain属性，Cat类中定义了hobby属性。同时，两个子类分别重写了父类的toString()方法，用于输出宠物的属性。