题解 | HJ84#统计大写字母个数#

import java.util.*;

// 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();
        char[] chars = s.toCharArray();
        int num = 0;
        for (int i = 0; i < chars.length; i++) {
            if (65 <= chars[i] && chars[i] <= 90) {
                num++;
            }
        }
        System.out.println(num);

    }
}