For

标签： Scanner int currentChar && stringLength myString

import java.util.Scanner;

public class For {
    public static void main(String args[]){
        String myString = null;
        int stringLength = 0;
        int letterNum = 0;
        int decimalNum = 0;
        int otherNum = 0;
        char currentChar;
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入字符串：");
        myString = scan.nextLine();
        stringLength = myString.length();
        for (int i = 0;i < stringLength; i++) {
            currentChar = myString.charAt(i);
            if (currentChar >= '0' && currentChar <= '9')
                decimalNum++;
            else if ((currentChar >= 'a' && currentChar <= 'z') || (currentChar >= 'A' && currentChar <= 'Z'))
                letterNum++;
            else
                otherNum++;
        }
        System.out.println("输入的字符串：" + myString);
        System.out.println("字母个数：" + letterNum);
        System.out.println("数字个数：" + decimalNum);
        System.out.println("其他类型字符个数：" + otherNum);
        scan.close();
    }
}

标签：,Scanner,int,currentChar,&&,stringLength,myString
From： https://blog.csdn.net/2301_80431225/article/details/137440872