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 = 0; i < arr.length - 1; i++){
            for(int j = i + 1; j < arr.length; j++){
                if(arr[j] < arr[i]){
                    arr[j] = arr[j] + arr[i] - (arr[i] = arr[j]);
                }
            }
        }

        for (int k = 0; k < arr.length; k++) {
            System.out.print(arr[k]+" ");
        }
    }
}