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 }
