Java Data Type - 如何列出枚举类型中的所有枚举值

enum Week {
  Monday, Tuesday, Wednesday, Thursday, Friday, Saturaday, Sunday
}

public class MainClass {
  public static void main(String args[]) {
    System.out.println("Here are all Week constants");

    // use values()
    Week allWeek[] = Week.values();
    for (Week aday : allWeek) {
      System.out.println(aday);
    }

  }
}