关于java中的冒泡排序

public class BubbleSort { public static void main(String[] args) { int[] arr = {3,4,8,2,5,9,1,7}; for (int i =1;i<arr.length ;i++ ) { for (int j = 0;j<arr.length-1 ;j++ ) { if(arr[j]>arr[j+1]) { int temp = arr[j]; arr[j] = arr[j+1]; arr[j+1] = temp; } } }

for (int i :arr ) { System.out.print(i); } } }