题解HJ9 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
import java.util.LinkedHashSet;
import java.util.Scanner;
import java.util.Set;
// 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 in = new Scanner(System.in);
int x = in.nextInt();
Set<Integer> set = new LinkedHashSet<>();
while (x > 9) {
set.add(x % 10);
x /= 10;
}
if (x > 0) set.add(x);
set.stream().forEach(s -> System.out.print(s));
}
}
LinkedHashSet的简单应用