imooc-java-作业练习-20150918

 1 public class HelloWorld {
 2     
 3       // 完成 main 方法
 4     public static void main(String[] args) {
 5         int[] scores = { 89, -23, 64, 91, 119, 52, 73 };
 6         scores = sortCustom(scores);
 7         for (int n = 0; n < 3; n++) {
 8             System.out.println(scores[n]);
 9         }
10     }
11 
12     // 定义方法完成成绩排序并输出前三名的功能
13     public static int[] sortCustom(int[] scores) {
14         int tmp = 0;
15         for (int k = 0; k < scores.length - 1; k++) {
16             if (scores[k] > 100 || scores[k] < 0) {
17                 for (int m = scores.length - 1; m > k; m--) {
18                     if (scores[m] <= 100 && scores[m] >= 0) {
19                         tmp = scores[m];
20                         scores[m] = scores[k];
21                         scores[k] = tmp;
22                         break;
23                     }
24                 }
25             }
26         }// 将不规范的成绩置于后方
27         for (int i = 0; i < scores.length; i++) {
28             // 这里是自定义的排序，没有使用array的排序
29             for (int j = i + 1; j < scores.length; j++) {
30                 //忽略不规范的成绩
31                 if (scores[j] > 100 || scores[j] < 0) {
32                     continue;
33                 }
34                 //交换数据
35                 if (scores[j] > scores[i]) {
36                     tmp = scores[i];
37                     scores[i] = scores[j];
38                     scores[j] = tmp;
39                 }
40             }
41         }
42         return scores;
43     }
44 }