题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
## LinkedHashSet 是记录添加顺序的集合
import java.util.Scanner;
import java.util.LinkedHashSet;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int num = scanner.nextInt();
LinkedHashSet<Integer> set = new LinkedHashSet<>();
while (num > 0) {
set.add(num % 10);
num /= 10;
}
set.forEach(System.out::print);
}
}
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