选择排序

public class SelectSort {
    public static void sort(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            int minIndex = i;
            for (int j = i; j < arr.length; j++) {
                if (arr[j] < arr[minIndex]) {
                    minIndex = j;
                }
            }

            if (minIndex != i) {
                swap(arr, i, minIndex);
            }
        }

    }

    private static void swap(int[] arr, int i, int j) {
        int temp = arr[i];
        arr[i] = arr[j];
        arr[j] = temp;
    }

    public static void main(String[] args) {
        int[] arr = {10,7,2,4,7,62,3,4,2,1,8,9,19};
        sort(arr);
        System.out.println(Arrays.toString(arr));
    }
}