//定义动物类
class Animal{
private String name;
private int age;
//无参构造
public Animal(){}
//带参构造
public Animal(String name,int age){
this.name = name;
this.age = age;
}
//set,get
public void setName(String name){
this.name = name;
}
public String getName(){
return name;
}
public void setAge(int age){
this.age = age;
}
public int getAge(){
return age;
}
//定义run成员方法
public void run(){
System.out.println(age + "岁" + name + "爱跑步");
}
//定义eat成员方法
public void eat(){
System.out.println(age + "岁" + name + "还是吃货");
}
}
//定义狗类，继承动物类
class Dog extends Animal{
//无参构造
public Dog(){}
//带参构造
public Dog(String name,int age){
super(name,age);
}
//定义eat成员方法
public void eat(){
System.out.println("dog最爱吃骨头");
}
}
//定义猫类，继承动物类
class Cat extends Animal{
//无参构造
public Cat(){}
//带参构造
public Cat(String name,int age){
super(name,age);
}
//定义eat成员方法
public void eat(){
System.out.println("cat最爱吃鱼");
}
}
//测试类Zoo
class Zoo{
public static void main(String[] args){
//创建Animal对象
//使用方法1
Animal a = new Animal("动物们",1);
a.run();
a.eat();
//创建Dog对象
//Dog d = new Dog("狗狗",3);
//使用方法2
Dog d = new Dog();
d.setName("狗狗");
d.setAge(3);
d.run();
d.eat();
//创建Cat对象
Cat c = new Cat("猫猫",2);
c.run();
c.eat();
}
}
