选择排序 java

import java.util.Arrays;

public class SelectSort {

    public static void main(String[] args) {
        int a[] = {5, 4, 3, 2, 1};
        int[] result = selectSort(a);
        System.out.println(Arrays.toString(result));
    }

    public static int[] selectSort(int a[]) {
        //获取最小值和它的位置
        for (int i = 0; i < a.length; i++) {
            int minIndex = i;
            int min = a[i];
            boolean swap = false;
            for (int j = i + 1; j < a.length; j++) {
                if (a[j] < min) {
                    minIndex = j;
                    min = a[j];
                    swap = true;
                }
            }
            if (swap) {
                //交换最小值和第一位的位置
                int temp = a[i];
                a[i] = a[minIndex];
                a[minIndex] = temp;
            }
        }
        return a;
    }


}