Enter an array and bubble sort

 public static void main(String[] args) {
        System.out.println("请输入数组,利用空格分开:");
        Scanner sc = new Scanner(System.in);
        int arrLength = 5;
        int[] arr = new int[arrLength];
        for (int i = 0; i < arr.length; i++) {
            arr[i] = sc.nextInt();
        }
        System.out.println("输入的数组为:" + Arrays.toString(arr));
        sortArr(arr);
        System.out.println("冒泡排序以后的数组:"+Arrays.toString(arr));
    }

    /**
     *
     * @param arr 需要排序的数组
     * @return
     */
    public static int[] sortArr(int[] arr) {
        for (int i = 0; i < arr.length - 1; i++) {
            for (int j = 0; j < arr.length - i - 1; j++) {
                //比较相邻的两个元素
                if (arr[j] > arr[j + 1]) {
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }

            }
            System.out.println("每轮排序完都打印出数组:"+Arrays.toString(arr));
        }
        return arr;
    }