1 /**
2 * @author 冰樱梦
3 * 时间：2018年12月
4 * 题目：按考分对学生排序
5 *
6 */
7 public class Exercise08_03 {
8 public static void main(String args[]) {
9 int names[]=new int[8];
10 int[] list=new int[8];
11 // Students' answers to the questions
12 char[][] answers = {
13 {'A', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'},
14 {'D', 'B', 'A', 'B', 'C', 'A', 'E', 'E', 'A', 'D'},
15 {'E', 'D', 'D', 'A', 'C', 'B', 'E', 'E', 'A', 'D'},
16 {'C', 'B', 'A', 'E', 'D', 'C', 'E', 'E', 'A', 'D'},
17 {'A', 'B', 'D', 'C', 'C', 'D', 'E', 'E', 'A', 'D'},
18 {'B', 'B', 'E', 'C', 'C', 'D', 'E', 'E', 'A', 'D'},
19 {'B', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'},
20 {'E', 'B', 'E', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}};
21
22 // Key to the questions
23 char[] keys = {'D', 'B', 'D', 'C', 'C', 'D', 'A', 'E', 'A', 'D'};
24
25 // Grade all answers
26 for (int i = 0; i < answers.length; i++) {
27 // Grade one student
28 int correctCount = 0;
29 for (int j = 0; j < answers[i].length; j++) {
30 if (answers[i][j] == keys[j])
31 correctCount++;
32 }
33 list[i]=correctCount;
34 names[i]=i;
35
36
37 }
38
39 BubbleSort(list,names);
40 }
41
42 //冒泡排序从大到小，稍微修改了一下程序，让名字跟着分数一起排序。
43 public static void BubbleSort(int[] scores,int[] names){
44 for(int i=scores.length-1;i>=0;i--){
45 for(int j=0;j<scores.length-i-1;j++){
46 if(scores[j]>scores[j+1]){
47 int temp=scores[j];
48 scores[j]=scores[j+1];
49 scores[j+1]=temp;
50
51 int tem=names[j];
52 names[j]=names[j+1];
53 names[j+1]=tem;
54 }
55 }
56 }
57 for(int i=0;i<names.length;i++){
58 System.out.println("Student " + names[i]);
59 }
60
61 }
62
63
64
65 }
