JavaSE-10.3.2【继承案例-猫和狗】 

 1 package day1.yppah03;
 2 
 3 /*
 4 3.2 案例-猫和狗
 5  */
 6 
 7 public class AnimalDemo {
 8 
 9     public static void main(String[] args) {
10         Cat c1 = new Cat();
11         c1.setName("tom");
12         c1.setAge(5);
13         System.out.println(c1.getName() + "," + c1.getAge());
14         c1.catchMouse();
15 
16         Cat c2 = new Cat("tom", 3);
17         System.out.println(c2.getName() + "," + c2.getAge());
18         c2.catchMouse();
19 
20         Dog d1 = new Dog();
21         d1.setName("wangcai");
22         d1.setAge(2);
23         System.out.println(d1.getName() + "," + d1.getAge());
24         d1.lookDoor();
25 
26         Dog d2 = new Dog("small black", 3);
27         System.out.println(d2.getName() + "," + d2.getAge());
28         d2.lookDoor();
29     }
30 
31 }
 1 package day1.yppah03;
 2 
 3 public class Animal {
 4 
 5     private String name;
 6     private int age;
 7 
 8     public Animal() {
 9     }
10 
11     public Animal(String name, int age) {
12         this.name = name;
13         this.age = age;
14     }
15 
16     public void setName(String name) {
17         this.name = name;
18     }
19 
20     public void setAge(int age) {
21         this.age = age;
22     }
23 
24     public String getName() {
25         return name;
26     }
27 
28     public int getAge() {
29         return age;
30     }
31 
32 }
 1 package day1.yppah03;
 2 
 3 public class Cat extends Animal{
 4 
 5     public Cat() {
 6     }
 7 
 8     public Cat(String name, int age) {
 9         super(name, age);
10     }
11 
12     public void catchMouse(){
13         System.out.println("猫抓老鼠");
14     }
15 
16 }
 1 package day1.yppah03;
 2 
 3 public class Dog extends Animal{
 4 
 5     public Dog() {
 6     }
 7 
 8     public Dog(String name, int age) {
 9         super(name, age);
10     }
11 
12     public void lookDoor(){
13         System.out.println("狗看门");
14     }
15 
16 }

 

posted @ 2021-05-27 20:28  yub4by  阅读(97)  评论(0)    收藏  举报