[String]1. 문자찾기

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.next();
        char c = scanner.next().charAt(0);

        System.out.println(solution(str, c));
    }

    public static int solution(String str , char t){
        int cnt = 0;
        str = str.toLowerCase();
        t = Character.toLowerCase(t);

//        for(int i=0; i<str.length(); i++){
//            if(str.charAt(i) == t){
//                cnt++;
//            }
//        }

        //문자 배열로 생성된다.
        for(char c : str.toCharArray()){
            if(c == t) cnt++;
        }

        return cnt;
    }
}