题解 | #计算某字符出现次数#--转化为字符数组后比较统计

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            String str = in.nextLine();
            String cr = in.nextLine().toUpperCase();
            // 转化为字符数组后比较统计
            char[] chars = str.toCharArray();
            int count = 0;
            for (char cin : chars) {
                if (String.valueOf(cin).toUpperCase().equals(cr)) {
                    count++;
                }
            }
            System.out.println(count);
        }
    }
}