详细步骤: package com.company; import java.util.Arrays; public class Main { public static void main(String[] args) { int arr[] = {3,9,-1,10,-2}; int temp = 0; for (int i = 0; i < arr.length - 1; i++) { if (arr[i] > arr[i + 1]){ temp = arr[i]; arr[i] = arr[i + 1]; arr[i + 1] = temp; } } System.out....