参考文档

    1. public enum DayOfWeek {
    3.    SUNDAY ("Sunday"),
    4.    MONDAY ("Monday"),
    5.    TUESDAY ("Tuesday"),
    6.    WEDNESDAY ("Wednesday"),
    7.    THURSDAY ("Thursday"),
    8.    FRIDAY ("Friday"),
    9.    SATURDAY ("Saturday");
    11.    private String title;
    13.    DayOfWeek(String title) {
    14.        this.title = title;
    15.    }
    17.    public String getTitle() {
    18.        return title;
    19.    }
    21.    @Override
    22.    public String toString() {
    23.        return "DayOfWeek{" +
    24.                "title='" + title + '\'' +
    25.                '}';
    26.    }
    27. }