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Java类卡片枚举示例。修订过的

*非常感谢您的帮助*

我正在使用java网站上的class card示例来尝试构建一个游戏

http://java.sun.com/j2se/1.5.0/docs/guide/language/enums.html

我想分配西装和等级值。我不知道怎么做

对于西服,我想做的是指定Heart=4 菱形=3,梅花=2,黑桃=1

对于排名,ace=11 杰克,女王,国王=10
2-10卡的价值

程序接受用户输入作为手数和每手牌数的参数。。 像这样:$java交易4.5

然后我要它打印八个黑桃(8),十个红桃(40)

基于这些值。。示例spade=1*8 红心=4*10

我可以让它打印手而不是值

我的例子 按比例缩小的电流输出:

FIVE of CLUBS(0),
DEUCE of SPADES(0),
SEVEN of SPADES(0),
TEN of SPADES(0),
THREE of HEARTS(0),
FOUR of SPADES(0),
THREE of DIAMONDS(0),
[TEN of SPADES, THREE of HEARTS, FOUR of SPADES, THREE of DIAMONDS]
[FOUR of CLUBS, FIVE of CLUBS, DEUCE of SPADES, SEVEN of SPADES]
[QUEEN of HEARTS, SIX of HEARTS, FOUR of HEARTS, KING of DIAMONDS]

C:\Java\a02>

下面是两个不同类中的程序代码

import java.util.*;

public class Cards {

    public enum Rank {
        DEUCE(2), THREE(3), FOUR(4), FIVE(5), SIX(6), SEVEN(7), EIGHT(8), NINE(
                9), TEN(10), JACK(10), QUEEN(10), KING(10), ACE(11);

        private int Rankpoints;

        Rank(int points) {
            this.Rankpoints = points;
        }

        public int getRankpoints() {
            return this.Rankpoints;
        }

    }

    public enum Suit {
        CLUBS(2), DIAMONDS(3), HEARTS(4), SPADES(1);

        private int Suitpoints;

        Suit(int points) {

            this.Suitpoints = points;

        }

        public int getSuitpoints() {
            return this.Suitpoints;
        }

    }

    private final Rank rank;
    private final Suit suit;

    private Cards(Rank rank, Suit suit) {
        this.rank = rank;
        this.suit = suit;
    }

    public Rank rank() {
        return this.rank;
    }

    public Suit suit() {

        return this.suit;

    }

    public String toString() {
        return rank + " of " + suit;
    }

    private static final List<Cards> protoDeck = new ArrayList<Cards>();

    // Initialize prototype deck
    static {
        for (Suit suit : Suit.values())
            for (Rank rank : Rank.values())
                protoDeck.add(new Cards(rank, suit));

    }

    public static ArrayList<Cards> newDeck() {

        return new ArrayList<Cards>(protoDeck); // Return copy of prototype deck
    }

}

这里是主要的

import java.util.*;

public class Deal {
    public static void main(String args[]) {
        int numHands = Integer.parseInt(args[0]);
        int cardsPerHand = Integer.parseInt(args[1]);
        List<Cards> deck = Cards.newDeck();
        Collections.shuffle(deck);

        for (Cards card : deck) {
            System.out.println(card.rank() + " of " + card.suit() + "("
                    + card.getSuitpoints() + ")" + ",");

        }

        for (int i = 0; i < numHands; i++)
            System.out.println(deal(deck, cardsPerHand));
    }

    public static ArrayList<Cards> deal(List<Cards> deck, int n) {
        int deckSize = deck.size();
        List<Cards> handView = deck.subList(deckSize - n, deckSize);
        ArrayList<Cards> hand = new ArrayList<Cards>(handView);
        handView.clear();
        return hand;
    }
}

当我试图编译时,我得到一个错误。。 为了

卡片。getSuitpoints()

错误:找不到符号:方法getSuitpoints()

我觉得很奇怪,因为

卡片。getRankpoints() 汇编。。 这是我将其放入枚举的方式吗

getRankpoints() 返回零。 怎么了


共 (1) 个答案

  1. # 1 楼答案

    你在牌组中看到重复的原因是你在牌上迭代了两次

    for (Cards suit : deck) // ********* here is where i print the deck ********
    {
        for (Cards rank : deck) {
            System.out.println(rank.rank() + " of " + suit.suit() + ",");
        }
    }
    

    假设甲板生成器正常工作,只需迭代一次即可:

    for (Cards card : deck)
    { 
        System.out.println(card.rank() + " of " +  card.suit() + ",");  
    } 
    

    另外,对于表示卡片的类来说,Card可能是比Cards更好的名称选择

    要获取该值,需要添加一个返回该值的方法

    Rank(int points)
    {
        this.Rankpoints = points;  
    }
    
    public int getRankpoints() {
        return this.Rankpoints;
    }
    

    然后,当您想要打印值时,可以调用它