题解 | #计算某字母出现次数#

import java.util.*;
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String line = sc.nextLine();
        char target = sc.next().toUpperCase().charAt(0);
        line = line.toUpperCase();
        char[] chs = line.toCharArray();
        int count = 0;
        for (int i = 0; i < line.length(); i++) {
            if (chs[i] == target) {
                count++;
            }
        }
        System.out.println(count);
    }
}