FisherYates费雪耶兹随机置乱算法

public class FisherYates {

    public static void main(String[] args) {
        int[] arr = new int[10];
        // 初始有序数组
        System.out.println("初始化有序数组：");
        for (int i = 0; i < arr.length; i++) {
            arr[i] = i + 1;
            System.out.print(" " + arr[i]);
        }
        // 费雪耶兹置乱算法
        System.out.println("
" + "费雪耶兹置乱算法+随机数：");

        for (int j = arr.length - 1; j > 0; j--) {

            int random = (int) (Math.random() * 10);
            System.out.print(" "+random);
            int temp = arr[j];
            arr[j] = arr[random];
            arr[random] = temp;
        }
        System.out.println("
"+"置乱后的数组:");
        for (int i : arr) {
            System.out.print(" "+i);
        }

    }

}