作业

1 package com.wy;
 2 
 3 public class June$9 {
 4     public int id;
 5     public String name;
 6     public int age;
 7     public String city;
 8     public String introduce() {
 9         return "My id=" + id + ", name=" + name + ", age=" + age + ", city=" + city ;
10     }
11     //构造方法
12     public June$9() {
13         
14     }
15     //有参数构造
16     public June$9(int id,String name,int age,String city) {
17         this.id=id;
18         this.name=name;
19         this.age=age;
20         this.city=city;
21     }
22     
23 }

 1 package com.wy;
 2 
 3 public class DemoPerson {
 4 
 5     public static void main(String[] args) {
 6         // TODO Auto-generated method stub
 7         June$9 p1=new June$9();
 8         June$9 p2=new June$9();
 9         June$9 p3=new June$9();
10         June$9 p4=new June$9();
11         p1.id=110001;
12         p1.name="刘备";
13         p1.age=43;
14         p1.city="蜀国";
15         p2.id=110002;
16         p2.name="关羽";
17         p2.age=35;
18         p2.city="蜀国";
19         p3.id=110003;
20         p3.name="张飞";
21         p3.age=32;
22         p3.city="蜀国";
23         p4.id=110004;
24         p4.name="诸葛亮";
25         p4.age=25;
26         p4.city="蜀国";
27         System.out.println(p1.introduce());
28         System.out.println(p2.introduce());
29         System.out.println(p3.introduce());
30         System.out.println(p4.introduce());
31         
32     }
33 
34 }