题解 | #统计大写字母个数#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String str = sc.nextLine();
            int count = 0;
            for (int i = 0; i < str.length(); i++) {
                if (str.charAt(i) >= 'A' && str.charAt(i) <= 'Z') {
                    count++;
                }
            }
            System.out.println(count);
        }
    }
}