- 选择排序 每次从待排序区选出最小的（最大的）数 public static void main(String[] args) { // TODO Auto-generated method stub int [] arr = {12,54,9,34,6,7,8,6}; selectSort(arr); for (int i : arr) { System.out.print(i +" "); } } public void selectSort(int []arr){ for (int i = 0; i < arr.length - 1; i++) { for (int j = i; j < arr.length - 1; j++) { if(arr[i] > arr[j + 1]){ int temp = arr[i]; arr[i] = arr[j + 1]; arr[j+1] = temp; } } } }