题解 | #整型数组按照升序或降序进行排序#

import java.util.Scanner;
import java.util.Arrays;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int num = scan.nextInt();
        int [] array = new int[num];
        for(int i = 0;i < num; i++){
            int x = scan.nextInt();
            array[i] = x;
        }
        int a = scan.nextInt();
         Arrays.sort(array);
        if(a == 1) { 
            for(int i = num - 1;i >= 0; i--){
                System.out.print(array[i]+" ");
            }
        } else {
            for(int i = 0;i < num; i++){
                System.out.print(array[i]+" ");
            }
        }
    }
}