题解 | #计算某字符出现次数#

public class Main {
        public static void main(String[] args){
            Scanner scanner = new Scanner(System.in);
            String str = scanner.nextLine().toLowerCase();
            char s = scanner.nextLine().toLowerCase().charAt(0);
            int count = 0;
            for(int i = 0 ; i < str.length();i++){
                if(str.charAt(i) == s){
                    count++;
                }
            }
            System.out.println(count);
        }
}