Java冒泡排序

package com.tj.test;/*** * 冒泡排序 Bubble sort * 一共比较length-1轮 * 第i轮比较j次，i+j=length。 * */public class Demo_21 {public static void main(String[] args) {int arr[]={1,5,8,6,4,3,2};for(int i = 1;i<arr.length;i++){for(int j = 0;j<(arr.length-i);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.println(i);}}}