题解 | #在字符串中找出连续最长的数字串#

import java.util.HashMap;
import java.util.Scanner;

// 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 sc = new Scanner(System.in);
        while (sc.hasNext()) {
            int res = 0;
            String str = sc.nextLine();
            HashMap<Integer, String>hs = new HashMap<>();
            for (String s : str.split("\\D")) {
                hs.put(s.length(), hs.getOrDefault(s.length(), "") + s);
            }

            for (Integer i : hs.keySet()) {
                res = Math.max(res, i);
            }
            System.out.println(hs.get(res) + "," + res);
        }
    }
}