题解 | #计算某字符出现次数#

/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2022-2022. All rights reserved.
 */

package com.nowcoder;

import java.util.Scanner;

/**
 * @author lwx949018
 * @version [版本号, 2022年04月01日}]
 * @ClassName : CoderLength
 * @Description : 计划单词的长度
 * @since [2022-04-01]
 */
public class CharTimesInString {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String inputString = in.nextLine();
        String queryChar = in.nextLine().toLowerCase();
        char[] chars = inputString.toLowerCase().toCharArray();
        int count = 0;
        for (char c : chars) {
            if(c==queryChar.charAt(0)){
                count++;
            }
        }
        System.out.println(count);
    }

}

通过循环查询输入的字符，要注意的是需要将字符串转换为统一大小写