私はこの方法でデッキを処理しようと試みてきましたが、52枚のカードを処理すると、無限ループになります。
これは、設定されていないカードを取得するまで乱数を生成する必要があるためですが、すべてのカードが設定されると、条件が真になることはなく、無限ループになります。
私は自分の問題を知っていますが、それを修正する方法がわかりません。私は何時間も試してきました。52枚のカードに達したら免除をスローしたいのですが、無限ループに入るとifステートメントに到達することはありません。
public PlayingCard deal() {
Random swift = new Random();
int index = swift.nextInt(DECK_SIZE);
cardsInDeck = DECK_SIZE;
int i = 51;
while (this.deck[index] == false||i==cardsInDeck) {index = swift.nextInt(DECK_SIZE);}
if(i==cardsInDeck) { throw new RuntimeException("Empty Deck");}
PlayingCard.CardRank[] Ranking = PlayingCard.CardRank.values();
PlayingCard.CardSuit[] Suiting = PlayingCard.CardSuit.values();
PlayingCard.CardRank Rank = Ranking[index % 13];
PlayingCard.CardSuit Suit = Suiting[index % 4];
PlayingCard selected = new PlayingCard(Suit, Rank);
this.deck[index] = false;
i++;
cardsInDeck--;
return selected;
}
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コード全体
import java.util.Random;
パブリッククラスDeckOfCards{
public static final int DECK_SIZE = 52;
//Instance Variables
private boolean[] deck; //An implicit set of 52 Playing-Cards
private int cardsInDeck;//Number of cards currently in the deck
private Random dealer; //Used to rendomly select a card to be dealt
//Constructor
public DeckOfCards() {
this.deck = new boolean[DECK_SIZE];
int index = 0;
for (PlayingCard.CardSuit Suit : PlayingCard.CardSuit.values()) {
for (PlayingCard.CardRank Rank : PlayingCard.CardRank.values()) {
PlayingCard card = new PlayingCard(Suit, Rank);
deck[index] = true;
index++;
}
}
}
//Collect all 52 Playing-Cards into the deck
public void shuffle() {
/*Random shuffle = new Random();
for (int j = 0; j < this.deck.length; j++) {
int k = shuffle.nextInt(this.deck.length);
boolean temp = this.deck[j];
this.deck[j] = this.deck[k];
this.deck[k] = temp;*/
int index = 0;
for (PlayingCard.CardSuit Suit : PlayingCard.CardSuit.values()) {
for (PlayingCard.CardRank Rank : PlayingCard.CardRank.values()) {
PlayingCard card = new PlayingCard(Suit, Rank);
deck[index] = true;
index++;
}
}
}
//Simulate dealing a randomly selected card from the deck
//Dealing from an empty deck results in a RuntimeException
public PlayingCard deal() {
Random swift = new Random();
int index = swift.nextInt(DECK_SIZE);
cardsInDeck = DECK_SIZE;
int i = 0;
while (this.deck[index] == false&&i>0) {index = swift.nextInt(DECK_SIZE);}
if(i>cardsInDeck) { throw new RuntimeException("Empty Deck");}
PlayingCard.CardRank[] Ranking = PlayingCard.CardRank.values();
PlayingCard.CardSuit[] Suiting = PlayingCard.CardSuit.values();
PlayingCard.CardRank Rank = Ranking[index % 13];
PlayingCard.CardSuit Suit = Suiting[index % 4];
PlayingCard selected = new PlayingCard(Suit, Rank);
this.deck[index] = false;
i++;
cardsInDeck--;
return selected;
}
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public static void main(String[] args) {
DeckOfCards myDeck = new DeckOfCards();
myDeck.shuffle();
for (int p = 1; p <= 4; p++) {
for (int c = 1; c <= 13; c++) {
System.out.print(myDeck.deal() + " ");
}
System.out.println();
}
try {
System.out.println(myDeck.deal());
} catch (RuntimeException rte) {
System.out.println(rte.getMessage());
}
}
}