题解 | #计算某字符出现次数#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String a= sc.nextLine().toUpperCase();
        String b= sc.nextLine().toUpperCase();
        char[] c=a.toCharArray();
        char[] d= b.toCharArray();
        int count=0;
        for (int i=0;i< c.length;i++){
            if (d[0]==c[i]){
                count++;
            }
        }
        System.out.println(count);
    }
}