Question

感谢您的帮助，我已经设法在所提供的答案的帮助下工作。

这是我的主要课程：

import data.Deck;
import java.util.ArrayList;

public class Game {
    public static void main(String[] args) {
        // TODO code application logic here
        ArrayList<Card> deck = new ArrayList<Card>();

        Deck getdeck = new Deck();
        deck = getdeck.get32Cards();

        for (Card info : deck) {
            System.out.println(info); //this just prints all the 
        }        
    }

}

这是我的卡类：包装业务;

public class Card {

    public enum Suit{SPADES, CLUBS, HEARTS, DIAMONDS};
    public enum Rank{JACK, KING, SEVEN, EIGHT, NINE, TEN, ACE, QUEEN}

private Suit suit;
private Rank rank;

    public Card(Suit suit, Rank rank) {
        this.suit = suit;
        this.rank = rank;
    }

    public Rank getRank() {
        return rank;
    }

    public Suit getSuit() {
        return suit;
    }

    @Override
    public String toString() {
        return getRank() + " of " + getSuit();
    }
}

这是我的甲板课程：

package data;

import business.Hand;
import business.Card;
import business.Card.Rank;
import business.Card.Suit;
import java.util.ArrayList;
import java.util.Collections;

public class Deck {

    ArrayList<Card> deck = new ArrayList<Card>();

    public ArrayList<Card> get32Cards() {

        deck.add(new Card(Suit.SPADES, Rank.JACK));
        deck.add(new Card(Suit.SPADES, Rank.KING));
        deck.add(new Card(Suit.SPADES, Rank.SEVEN));
        deck.add(new Card(Suit.SPADES, Rank.EIGHT));
        deck.add(new Card(Suit.SPADES, Rank.NINE));
        deck.add(new Card(Suit.SPADES, Rank.TEN));
        deck.add(new Card(Suit.SPADES, Rank.ACE));
        deck.add(new Card(Suit.SPADES, Rank.QUEEN));
        deck.add(new Card(Suit.HEARTS, Rank.JACK));
        deck.add(new Card(Suit.HEARTS, Rank.KING));
        deck.add(new Card(Suit.HEARTS, Rank.SEVEN));
        deck.add(new Card(Suit.HEARTS, Rank.EIGHT));
        deck.add(new Card(Suit.HEARTS, Rank.NINE));
        deck.add(new Card(Suit.HEARTS, Rank.TEN));
        deck.add(new Card(Suit.HEARTS, Rank.ACE));
        deck.add(new Card(Suit.HEARTS, Rank.QUEEN));
        deck.add(new Card(Suit.CLUBS, Rank.JACK));
        deck.add(new Card(Suit.CLUBS, Rank.KING));
        deck.add(new Card(Suit.CLUBS, Rank.SEVEN));
        deck.add(new Card(Suit.CLUBS, Rank.EIGHT));
        deck.add(new Card(Suit.CLUBS, Rank.NINE));
        deck.add(new Card(Suit.CLUBS, Rank.TEN));
        deck.add(new Card(Suit.CLUBS, Rank.ACE));
        deck.add(new Card(Suit.CLUBS, Rank.QUEEN));
        deck.add(new Card(Suit.DIAMONDS, Rank.JACK));
        deck.add(new Card(Suit.DIAMONDS, Rank.KING));
        deck.add(new Card(Suit.DIAMONDS, Rank.SEVEN));
        deck.add(new Card(Suit.DIAMONDS, Rank.EIGHT));
        deck.add(new Card(Suit.DIAMONDS, Rank.NINE));
        deck.add(new Card(Suit.DIAMONDS, Rank.TEN));
        deck.add(new Card(Suit.DIAMONDS, Rank.ACE));
        deck.add(new Card(Suit.DIAMONDS, Rank.QUEEN));

        Collections.shuffle(deck); //this shuffles the deck

        return deck;
    }

我还有一个Hand类和一个Player类。我打算让两个玩家各自拥有一手牌。我不知道如何删除'deck'arraylist的前四张牌，并将其插入另一个arraylist。另外我不知道编写代码的类。请指教。

Answer 1

尝试创建另一个这样的ArrayList newArraLIst：

   ArrayList<Card> newArraLIst = new ArrayList<Card>();

并使用循环到remove()首先four元素和add()它们到新的ArrayList，如下所示：

    if(deck.size() >= 4){
    for (int i = 0 ; i < 4 ; i++) {
        newArraLIst.add(deck.remove(i));
      }        
    }

Answer 2

我对您的代码有一些建议。首先，将这些卡添加到卡片中看起来有点难看，我建议做这样的事情：

for (Rank rank : Rank.values()){
        for (Suit suit : Suit.values()){
            deck.add(new Card(suit, rank);
        }
    }

另外，你的牌组应该是一堆牌，一手牌可以是牌阵列。当你从你的套牌中处理你的牌时，它应该是这样的：

public static final int HAND_SIZE = 4;

for (int i = 0; i < HAND_SIZE; i++){
    for (Player player : game.getPlayers()){
         player.getHand().add(deck.pop());
    }
}

这段代码将甲板上的4张牌交给游戏中的每个玩家。 deck.pop（）删除堆栈中的最后一张卡并返回它。这样你就可以在玩家手中添加一张牌，并在一行代码中将其从牌组中删除。

Answer 3

我建议你使用Stack而不是ArrayList，它更有意义。然后你可以使用pop（）方法同时获取和删除顶部卡。但是，您可以使用以下n次来继续将甲板的第一个元素移动到手的开始位置。在你的情况下将n替换为4。

   ArrayList<Integer> hand = new ArrayList<>();
      for(int i = 0; i<n;i++){
        hand.add(0, deck.get(0));
                deck.remove(0);
}

如何将arraylist的前四个元素移动到另一个arraylist中？

3 个答案: