题解 | #判断各类型字符个数#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        int numbers = 0;
        int words = 0;
        int space = 0;
        int other = 0;
        Scanner scanner = new Scanner(System.in);
        String str = scanner.nextLine();

        //write your code here......
        words = str.replaceAll("[^a-zA-Z]", "").length();
        numbers = str.replaceAll("[^\\d]", "").length();
        // numbers = str.replaceAll("[^0-9]", "").length();
        space = str.split(" ").length - 1;
        // space = str.replaceAll("[^\\s]", "").length();
        other = str.length() - words - numbers - space;


        System.out.println("英文字母"+words+"数字"+numbers+"空格"+space+"其他"+other);
    }
}