冒泡排序

1 public class BubbleSort{
2      public static void main(String[] args){
3          int score[] = {67, 69, 75, 87, 89, 90, 99, 100};
4          for (int i = 0; i < score.length -1; i++){    //最多做n-1趟排序
5              for(int j = 0 ;j < score.length - i - 1; j++){    //对当前无序区间score[0......length-i-1]进行排序(j的范围很关键，这个范围是在逐步缩小的)
6                  if(score[j] < score[j + 1]){    //把小的值交换到后面
7                      int temp = score[j];
8                      score[j] = score[j + 1];
9                      score[j + 1] = temp;
10                  }
11              }
12              System.out.print("第" + (i + 1) + "次排序结果：");
13              for(int a = 0; a < score.length; a++){
14                  System.out.print(score[a] + "\t");
15              }
16              System.out.println("");
17          }
18              System.out.print("最终排序结果：");
19              for(int a = 0; a < score.length; a++){
20                  System.out.print(score[a] + "\t");
21         }
22      }
23  }