字符串中数字字符出现的次数,给了我很多灵感

package com.neusoft.beihua12;

import java.util.Scanner;

/*

     判断字符串中数字字符出现的次数

     " ab3c5de78fg9"

*/

public class TestString {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

String s1 = scanner.nextLine();

String s2 = s1.replaceAll("\\d", "");

System.out.println(s2);

System.out.println("数字出现的次数" + (s1.length() - s2.length()));

}

}