public class Test02_SortBasic01_SelectSort02 {

public static void main(String[] args) {

int[] arr = new int[]{4,1,2,3,7,5,6,8};

System.out.println("排序前：");

System.out.println(Arrays.toString(arr));

System.out.println("排序后：");

selectSort(arr);

System.out.println(Arrays.toString(arr));

}

/**

* 选择排序

* @param data

*/

public static void selectSort(int[] arr){

for (int i = 0; i < arr.length; i++) {

//int minIndex = i; 这里定义不也是多余吗？

for (int j = i + 1; j < arr.length; j++) {//这里感觉j = i + 1更合理吧

if(arr[j] < arr[i]){

swap(arr,i,j);

}

}

}

}

private static void swap(int[] arr, int i, int j) {

int temp = arr[i];

arr[i] = arr[j];

arr[j] = temp;

}

}

​