题解 | #明明的随机数#

import java.util.Random;
import java.util.Scanner;
import java.util.TreeSet;


// 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 scanner = new Scanner(System.in);
        //System.out.println("输入:");
        int i = scanner.nextInt();
        TreeSet<Integer> treeSet = new TreeSet<>();
        while (i>0){
            //Random random = new Random();
            //int number = random.nextInt(500)+1;
            int number = scanner.nextInt();
            //System.out.println(number);
            treeSet.add(number);
            i--;
        }

        //不对treeSet 进行排序，生成新的列表排序
        //System.out.println("输出:");
        treeSet.stream().sorted((o1, o2) -> o1 - o2).forEach(integer -> System.out.println(integer));
    }
}