我几乎已经完成了比赛,但我不确定为什么它会在几轮后下降。我认为它与甲板课的编写方式有关。它由老师提供,但我可能需要修复它。
我想也许在几轮后,阵列变得太满或什么的,所以我尝试添加一种方法来清除它们。这不起作用,我不认为这是问题,但我不确定。
class deck{
private String [] cards = {"A","K","Q","J","10","9","8","7","6","5","4","3","2"};
private int cardCount = 1;
private boolean isShuffled = false;
//**********Shuffle cards method****************************
private void shuffleCards(){//shuffle cards method
for (int i = 0; i < cards.length; i++) {
int index = (int)(Math.random() * 13);
String temp = cards[i];
cards[i] = cards[index];
cards[index] = temp;
}
isShuffled = true;
}
//********Ensure the cards get shuffled before dealing******
public String getCards(){
if (isShuffled == true){
cardCount++;
return cards[cardCount];
}
else {
shuffleCards();//shuffle if they have not
cardCount++;
return cards[cardCount];
}
}
//********Show cards method*********************************
public void showCards(String [] theirCards){
for (int i = 0; i < theirCards.length; i++) {
if(theirCards[i] == null){
continue;
}
System.out.print(theirCards[i] + " ");
}
}
public void clearCards(){
cards = null;
cards = null;
}
//*******Card value method**********************************
public int getCardValues(String tempChar){
int indValues = 1;
switch (tempChar){
case "A": indValues = 1; break;
blah blah blah
case "3": indValues = 3; break;
case "2": indValues = 2;
}
return indValues;
}
}
我希望游戏能够保持循环,直到我通过投注退出或用完资金,但相反,在大约3场比赛后,我收到此错误:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 13
at deck.getCards(Baccarat.java:248)
at playerObjects.setComputersCards(Baccarat.java:177)
at Baccarat.main(Baccarat.java:19)
两个明显的问题:
首先,cardCount初始化为1(如前所述)。其次,在方法getCards()中,cardCount在返回卡之前递增。要解决此问题,您应该将cardCount初始化为-1而不是1。
就像现在一样,你总是跳过你牌组中的前两张牌,所以你只有11张牌,而不是你所假设的13张牌,这可能就是为什么你在第三轮比赛中超过指数 - 百家乐牌对于玩家和银行来说,通常都是2到3张牌,这样就可以加起来。
解
首先,您应该将cardCount初始化为-1。其次,作为故障保护,你应该修改getCards()方法来测试你的cardCount,如果是12,则考虑将其设置为-1并在执行增量/返回卡之前再次洗牌。换句话说,让套牌管理自己以避免索引超出范围。