尝试在Java中将switch语句替换为枚举

enum DayOfWeek {
    MONDAY,
    TUESDAY,
    WEDNESDAY,
    THURSDAY,
    FRIDAY,
    SATURDAY,
    SUNDAY
}

public class Main {
    public static void main(String[] args) {
        DayOfWeek day = DayOfWeek.MONDAY;

        switch (day) {
            case MONDAY:
                System.out.println("今天是星期一");
                break;
            case TUESDAY:
                System.out.println("今天是星期二");
                break;
            case WEDNESDAY:
                System.out.println("今天是星期三");
                break;
            case THURSDAY:
                System.out.println("今天是星期四");
                break;
            case FRIDAY:
                System.out.println("今天是星期五");
                break;
            case SATURDAY:
                System.out.println("今天是星期六");
                break;
            case SUNDAY:
                System.out.println("今天是星期日");
                break;
            default:
                System.out.println("无效的日期");
                break;
        }
    }
}