Question

我已经分配了一个带阵列的程序来构建一副牌，我需要一个程序来改变牌组。我不知道从哪里开始。我考虑过创建一个名为shuffleDeck的新方法，但我不确定它是否可以正常使用这两个数组。对于我来说，数组通常是一个新的主题，当有两个阵列构建每个单独的卡时，我不确定如何改组牌组。

请不要直接回答，但我们将非常感谢您提供的一些提示/帮助。

编辑：我尝试使用Collections.shuffle，似乎它没有使用Strings正确构建。

import java.util.*;
import java.io.*;

public class cards_st {


public static void main(String[] args) {
    String [] card = {"2","3","4","5","6","7","8","9","10","Jack","Queen","King","Ace"};
    String [] suit = {" of hearts"," of clubs"," of spades", " of diamonds"};
    String [] odeck = new String[52];
    buildDeck(odeck,card,suit);
    for(int d = 0; d <52; d++)
        System.out.println(odeck[d]);


    }
    public static void buildDeck(String [] tdeck,String [] tcard, String [] tsuit)
    {
        int count = 0;
        for (int i = 0; i < 13; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                tdeck[count]= tcard[i] + tsuit[j];
                count++;
            }
        }
    }
}

Answer 1

如果我能提出建议，那么如果你遵循oop会更好。你拥有一个主要课程。你正在使用字符串＆＃34;常量＆＃34;这不安全。将正确的元素封装到对象中：卡片和卡片。下一张卡片将有卡片（1,2,3,4,5）和套件（心脏，......）。类Deck将具有一组Card对象和方法，通过遍历所有枚举的值和创建卡来初始化。接下来使用collections.shuffle来改变它。

public class Card {
    public enum CardType {
        ONE,
        TWO,
        THREE;
    }

    public enum Suit {
            HEARTS,
            CLUBS,
    }

    private CardType cardType;
    private Suit suit;

    constructor && getters (...)
}



public class Deck {
    List<Card> cards = new ArrayList<Card>();
    public void init() {
        for(CardType cardType : CardType.values()) {
            for(Suit suit : Suit.values()) {
                  cards.add(new Card(cardType, suit));
            }
        }
        Collections.shuffle(cards);
    }
}

您还可以为枚举类型

指定字符串名称

public enum Suit {
    HEARTS("of hearts");
    private String toString;
    public Suit(String toString) {
        this.toString = toString;
    }
    @Override
    public String toString() {
        return toString;
    }
}

Answer 2

String [] cards = {"H2","H3","H4","H5","H6","H7","H8","H9","H10","HJack","HQueen","HKing","HAce"
,"D2","D3","D4","D5","D6","D7","D8","D9","D10","DJack","DQueen","DKing","DAce"
,"C2","C3","C4","C5","C6","C7","C8","C9","C10","CJack","CQueen","CKing","CAce"
,"S2","S3","S4","S5","S6","S7","S8","S9","S10","SJack","SQueen","SKing","SAce"
};

List<String> deck = Arrays.asList(cards);  

System.out.println("Initial collection: "+deck);

// shuffle the list
Collections.shuffle(deck);

 System.out.println("Final collection after shuffle: "+deck);

我如何'洗牌'排列在两个独立数组中的字符串？

2 个答案: