题解HJ2 | #计算某字符出现次数#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        String s = in.nextLine();
        String target = in.nextLine();

        int count = 0;

        for (int i = 0; i < s.length(); i++) {
            if (target.toLowerCase().charAt(0) == s.charAt(i) ||
                    target.toUpperCase().charAt(0) == s.charAt(i))
                count++;
        }

        System.out.println(count);
    }
}