题解 | #计算某字符出现次数#

package com.company.niuke;

import java.util.Scanner;

/**
 * @ProjectName: leetcode
 * @Package: com.company.niuke
 * @ClassName: Main
 * @Author: Administrator
 * @Description: 牛客网测试
 * @Date: 2022/2/11 20:30
 * @Version: 1.0
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        char[] str = scanner.nextLine().toLowerCase().toCharArray();
        String ch = scanner.nextLine().toLowerCase();

        int num = 0;
        for (int i = 0; i < str.length; i++) {
            if (ch.equals(String.valueOf(str[i]))) {
                num++;
            }
        }
        System.out.println(num);
    }
}