题解 | #计算某字符出现次数#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int num=0;
        String zhzfc = scanner.nextLine();
        String zhzfc1 = scanner.nextLine();
        zhzfc = zhzfc.toUpperCase();
        zhzfc1 = zhzfc1.toUpperCase();
        char zf = zhzfc1.charAt(0);
        for(int i=0;i<zhzfc.length();i++){
            char c = zhzfc.charAt(i);

            if(c==zf){
                num++;
            }
                                     
        }
        System.out.println(num);    

    }
}