效果图
/*
* 把学生的成绩从高到低排序
* arr 整形的分数数组
*/
public static void test2(int[] arr) {
int leg = arr.length;
for (int i = 0; i < leg; i++) {
for (int j = i + 1; j < leg; j++) {
if (arr[i] > arr[j]) {
int first = arr[i];
arr[i] = arr[j];
arr[j] = first;
}
}
}
for (int i = 0; i < arr.length; i++) {
System.out.print(arr[i]+" ");
}
System.out.println();
}