java Bubble sort

1 图形

2 java 冒泡排序

        int[] arr = {5, 4, 3, 2, 1};
        for(int i =0;i arr[j + 1]) {// 和+1 元素比较，大于互换
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
        }
        for (int temp : arr){
            System.out.print(temp + " ");
        }