给出一个正整数 nnn，请你计算从 111 到 nnn 的所有正整数中，有多少个数字的各位数和是 999，Java

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int count = 0, temp;
        for (int i = 1; i <= n; i++) {
            temp = i;
            int s = temp % 10;
            temp /= 10;
            while (temp != 0){
                s += temp % 10;
                temp /= 10;
            }
            if (s == 9){
                count++;
            }
        }
        System.out.println(count);
    }
}