需求:

  键盘录入5个学生信息(姓名,语文成绩,数学成绩,英语成绩),按照总分从高到低存入文本文件

分析:
  A:创建学生类
  B:创建集合对象
      TreeSet<Student>
  C:键盘录入学生信息存储到集合
  D:遍历集合,把数据写到文本文件

 

首先创建个学生类

 1 package zl_Test;
 2 /**
 3  * 这是个记录学生成绩类
 4  * @author LZL
 5  *
 6  */
 7 public class Student {
 8     private String name;
 9     private int chinese;
10     private int math;
11     private int english;
12     
13     
14     public Student() {
15         super();
16         // TODO Auto-generated constructor stub
17     }
18 
19 
20     public Student(String name, int chinese, int math, int english) {
21         super();
22         this.name = name;
23         this.chinese = chinese;
24         this.math = math;
25         this.english = english;
26     }
27 
28 
29     public String getName() {
30         return name;
31     }
32 
33 
34     public void setName(String name) {
35         this.name = name;
36     }
37 
38 
39     public int getChinese() {
40         return chinese;
41     }
42 
43 
44     public void setChinese(int chinese) {
45         this.chinese = chinese;
46     }
47 
48 
49     public int getMath() {
50         return math;
51     }
52 
53 
54     public void setMath(int math) {
55         this.math = math;
56     }
57 
58 
59     public int getEnglish() {
60         return english;
61     }
62 
63 
64     public void setEnglish(int english) {
65         this.english = english;
66     }
67     
68     public int getsum() {
69          return this.chinese + this.english + this.math;
70         
71 
72     }
73     
74 }
View Code

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