题解 | #明明的随机数#

public class Main {

//把输入得数字转化为数组 数组转set去重 通过Collections.sort 排序

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    Set<Integer> set1 = new HashSet<>();
    Integer arr[] = new Integer[n];
    for (int i = 0; i < n; i++) {
        set1.add(sc.nextInt());

// arr[i]= sc.nextInt(); } // Set set = Arrays.stream(arr).collect(Collectors.toSet()); List ls = new ArrayList(set1); Collections.sort(ls);

    ls.forEach(item -> System.out.println(item));

}

}