001package hw3.optional;
002
003
004/**
005 * Represents one of the four suits (Hearts, Spades, Diamonds, Clubs) that appear
006 * on a playing card.  This class is immutable.
007 */
008public enum CardSuit {
009
010    // The 4 acceptable card suits, in ascending order.
011
012    /**
013     * The suit of clubs.
014     */
015    CLUBS,
016
017    /**
018     * The suit of diamonds.
019     */
020    DIAMONDS,
021
022
023    /**
024     * The suit of hearts.
025     */
026    HEARTS,
027
028    /**
029     * The suit of spades.
030     */
031    SPADES;
032
033}