冒泡排序

import java.util.Arrays; public class BubbleSort { public static void sort(int[] arr) { for (int i = 0; i < arr.length-1; i++) { for (int j = 0; j < arr.length - i - 1; j++) { //如果当前元素比后一位元素大 交换位置 if (arr[j] > arr[j + 1]) { int temp = arr[j]; arr[j] = arr[j + 1]; arr[j + 1] = temp; } } } } public static void main(String[] args) { int[] ints = {5, 3, 4, 1, 2}; sort(ints); System.out.println(Arrays.toString(ints)); } }