打印枚举标签的大写版本

#include <iostream>
#include <cctype>  // for toupper function

enum Color { RED, GREEN, BLUE };

int main() {
    Color color = GREEN;
    std::string label = "GREEN";
    for (auto& c : label) {
        c = std::toupper(c);
    }
    std::cout << "Upper case label: " << label << std::endl;
    return 0;
}

public class EnumExample {
    enum Color { RED, GREEN, BLUE }

    public static void main(String[] args) {
        Color color = Color.GREEN;
        String label = color.name();
        String upperCaseLabel = label.toUpperCase();
        System.out.println("Upper case label: " + upperCaseLabel);
    }
}

class Color(Enum):
    RED = 1
    GREEN = 2
    BLUE = 3

color = Color.GREEN
label = color.name
upper_case_label = label.upper()
print("Upper case label:", upper_case_label)