题解 | #冒泡排序#

import java.util.Arrays;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] arr = new int[7];
        for (int i = 0; i < arr.length; i++) {
            arr[i] = scanner.nextInt();
        }
        scanner.close();

        //write your code here......
        for (int i = arr.length - 1; i > 0; i--) {
            for (int j = 0; j < i; j++) {
                if (arr[j] > arr[j + 1]) {
                    swap(arr,j,j+1);
                }
            }
        }
        for (int k = 0; k < arr.length; k++) {
            System.out.print(arr[k] + " ");
        }
    }
    // 定义一个值交换的方法
    public static void swap(int[] arr, int i, int j) {
        arr[i] = arr[i] ^ arr[j];
        arr[j] = arr[i] ^ arr[j];
        arr[i] = arr[i] ^ arr[j];
    }
}