我正在尝试创建一个卡片游戏高尔夫球,以获得乐趣并练习我的Java技能。我正在尝试使用枚举来获取我的卡片值和套件。这些值保存在卡类中的名为Card的构造函数中。
我遇到的问题是打印我的所有个人卡片的arraylist Deck。可以在DeckOfCards类中找到此方法。我想知道我的程序是否正在创建一副完整的卡片。在此先感谢您的帮助!
DeckOfCards Class
package finalProjectGolf;
// Deck class represent a deck of playing cards.
import java.util.ArrayList;
import java.util.Collections;
public class DeckOfCards {
ArrayList<Card> deck = new ArrayList<Card>(); //array of Card objects
private int currentCard; // index of next Card to be dealt (0-51)
private static int numDecks = 1;
public int getCurrentCard() {
return currentCard;
}
public void setCurrentCard(int currentCard) {
this.currentCard = currentCard;
}
private static final int NUMBER_OF_CARDS = 52 * numDecks; //constant # of Cards
//constructor fill deck of Cards
public DeckOfCards(){
currentCard = 0; //set currentCard so first Card dealt is deck[0]
//Card Index
int c = 0;
//for each deck
for (int d = 0; d < numDecks; d++){
//for each suit
for (int s = 0; s < 4; s++){
// for each number
for (int n = 1; n <= 13; n++){
//add a new card to the deck
deck.add(new Card(CardValue.values()[n],Suit.values()[s])); //when using Enums java makes arrays automatically and you can use them by .values()
c++;
}}}//end for loop
}//end DeckOfCards constructor
//shuffle deck of Cards with one-pass algorithm
public void shuffle() {
Collections.shuffle(deck);
}
public int points(){
int value = deck.get(currentCard).getCardValue().getCardValue();
return value;
}
//deal one Card
public Card dealCard(int currentCard) {
//determine whether Cards remain to be dealt
if( currentCard < deck.size() ){
return deck.get(currentCard); //return current Card in array
}
else
return null; // return null to indicate that all Cards were dealt
}//end method dealCard
public void printDeck(){
{
currentCard = 0; //set currentCard so first Card dealt is deck[0]
//Card Index
int c = 0;
//for each deck
for (int d = 0; d < numDecks; d++){
//for each suit
for (int s = 0; s < 4; s++){
// for each number
for (int n = 1; n <= 13; n++){
//add a new card to the deck
System.out.printf(""); //when using Enums java makes arrays automatically and you can use them by .values()
c++;
}}}//end for loop
}//end DeckOfCards constructor
}
}// end class DeckOfCards
卡类
package finalProjectGolf;
public class Card
{
private Suit suit;
private CardValue cardValue;
public Card (CardValue cardValue, Suit suit) //constructor of Card, holds Card value and it's suit
{
this.cardValue = cardValue;
this.suit = suit;
}
public Suit getSuit()
{
return suit;
}
public void setSuit(Suit suit)
{
this.suit = suit;
}
public CardValue getCardValue()
{
return cardValue;
}
public void setCardValue(CardValue cardValue)
{
this.cardValue = cardValue;
}
public String toString(){
return cardValue + " of " + suit;
}// end method toString
}
CardValue Class
package finalProjectGolf;
public enum CardValue
{
ACE(1),
TWO(2),
THREE(3),
FOUR(4),
FIVE(5),
SIX(6),
SEVEN(7),
EIGHT(8),
NINE(9),
TEN(10),
JACK(11),
QUEEN(12),
KING(13);
private int cardValue;
private CardValue (int value)
{
this.cardValue = value;
}
public int getCardValue() {
return cardValue;
}
}
套装类
package finalProjectGolf;
public enum Suit
{
HEARTS(1),
SPADES(2),
CLUBS(3),
DIAMONDS(4);
private int suit;
private Suit (int value)
{
this.suit = value;
}
public int getCardSuit() {
return suit;
}
}
答案 0 :(得分:2)
要添加到AaronB的答案,您的printDeck方法实际上是错误的,因为您已发布它。目前它打印空字符串52次。此外,您只需要打印套牌中的所有项目,就不需要三次循环。一个非常简单的实现,可以在一个单独的牌组的新线上打印每张牌:
public void printDeck() {
for(Card card : deck) {
System.out.println( card.toString() );
}
}
您还需要为枚举值覆盖toString方法,以便它们打印您想要的名称。请查看https://stackoverflow.com/a/14413605/1425014了解如何执行此操作。
您的主要课程名为DeckOfCards。这向我表明,这个班级代表了一副牌。但是,根据for (int d = 0; d < numDecks; d++)
和private static int numDecks = 1
判断,您似乎打算让DeckOfCards代表一张或多张卡牌。如果您需要的不仅仅是DeckOfCards而不是使DeckOfCards类复杂化,那么简单地使用集合(例如ArrayList)可能更清楚。
最后,在此处发布代码之前,您应该尝试确保您的注释有意义。从DeckOfCards构造函数复制/粘贴后,printDeck()函数的注释没有更改。
答案 1 :(得分:1)
问题不在于你的printDeck
方法不起作用(我还没有测试过,但乍一看它看起来很合理),这是你永远不会打电话的。您可以将它放在DeckOfCards构造函数的末尾,如果要检查它是否正确。
此外,你真的应该重构一堆你的逻辑,尤其是在DeckOfCards类中。你有一些很大的计算块 - 把它放在一个方法中。此外,您应该在构造函数中声明它们,而不是在类中声明变量。例如:
ArrayList<Card> deck; //array of Card objects
private int currentCard; // index of next Card to be dealt (0-51)
private static int numDecks;
//constructor fill deck of Cards
public DeckOfCards(int numDecks){
deck = new ArrayList<Card>();
currentCard = 0; //set currentCard so first Card dealt is deck[0]
this.numDecks = numDecks;
如果我错了,请纠正我,你没有真正描述问题是什么......