首先，感谢阅读本文，我将首先发布与您可以浏览或完全跳过的程序相关的所有代码。
尝试忽略我在代码中的所有讽刺评论，因为他们没有针对堆栈溢出：P
BlackJack文件：
import java.util.Scanner;
import java.util.InputMismatchException;
public class BlackJack { //i should probably put a betting thing somewhere.....
//also should probably add a thing that tells them one of the dealers cards
//should also put something that stops 2 players from having the same name
static Scanner input = new Scanner(System.in); //honestly have no idea if i can put this here but it seems to work. keyword; seems
//good lucking counting cards with all this shuffling lol
public void absolutelyNothing() { //maybe put a betting method here instead of a method that does nothing???
//Do NOT Delete This Method!
}
public static void displayHands(Hand[] hands, String[] playerNames, int players) {
for (int i = 1; i < players; i++) {
display(hands, playerNames, i);
}
displayDealer(hands);
}
public static void display(Hand[] hands, String[] playerNames, int i) {
System.out.println(playerNames[i] + " has " + hands[i]);
}
public static void displayDealer(Hand[] hands) {
System.out.println("Dealer has " + hands[0].dealerDisplay());
}
public static boolean win(Hand[] hands, int i) {
int value = worth(hands[i]);
int dealer = worth(hands[0]);
if (value == -1) {
return false;
}
if (value > dealer) {
return true;
}
return false;
}
public static void winners(Hand[] hands, String[] playerNames) {
for (int i = 1; i < hands.length; i++) {
if (win(hands, i) == true) {
System.out.println(playerNames[i] + " beat the dealer");
}
else {
System.out.println(playerNames[i] + " lost to the dealer");
}
}
}
public static int worth(Hand hand) {
int sum = 0;
int aces = 0;
for (int i = 0; i < hand.howManyCards(); i++) {
Card card = hand.getCard(i);
int value;
if (card.getNumber() == -10) {
aces++;
value = 11;
}
else {
value = card.getNumber();
}
sum+= value;
}
for (int i = 0; aces > i; i++) {
if (sum >= 22) {
sum = sum - 10;
}
}
if (sum >= 22) {
return -1;
}
return sum;
}
public static void dealerTurn(Deck deck, Hand[] hands) {
int worth = worth(hands[0]);
while (worth < 16) {
dealCard(deck, hands, 0);
}
}
public static void playTurn(Deck deck, Hand[] hands, int i, String[] playerNames) {
// System.out.println(playerNames[i] + " hit?" + " Your hand is worth " + worth(hands[i]) );
boolean hit;
displayHands(hands, playerNames, hands.length);
while (true) {
if (worth(hands[i]) == -1) {
System.out.println("Bust");
break;
}
System.out.println(playerNames[i] + " hit?" + " Your hand is worth " + worth(hands[i]) );
try {
hit = input.nextBoolean();
}
catch (InputMismatchException exception) {
System.out.println("Please enter \"true\" or \"false\"");
continue; //pretty sure this continue is causing the glitch where if you don't enter a boolean it goes insane
}
if (hit == true) {
dealCard(deck, hands, i);
}
else {
break;
}
}
}
public static void everyoneGo(Deck deck, Hand[] hands, int players, String[] playerNames) {
for (int j = 1; j < players + 1; j++) { //players go
playTurn(deck, hands, j, playerNames);
}
dealerTurn(deck, hands);
}
public static Deck newHand(Deck deck) {
Deck newDeck = new Deck();
return newDeck;
}
public static void dealCard(Deck deck, Hand[] hands, int i) {
deck.shuffleDeck();
//goodluck counting cards
hands[i].addCard(deck.getCard(0));
deck.removeCard(0);
}
public static void giveNextCard(Hand[] hands, Deck deck, int i) {
hands[i].addCard(deck.getCard(0));
deck.removeCard(0);
}
public static Hand[] firstTwoCards(int players, String[] playerNames, Deck deck) { //gives dealer cards first an I'm too lazy to fix
deck.shuffleDeck();
//seriously good luck
Hand[] hands = new Hand[players + 1]; //dealer is hands[0]
for (int i = 0; i < players + 1; i++) {
hands[i] = new Hand(playerNames[i]);
}
for (int j = 0; j < 2; j++) {
for (int i = 0; i < players + 1; i++) {
giveNextCard(hands, deck, i);
}
}
return hands;
}
public static String[] getNames(int players) {
System.out.println("What are the names of the players?");
String[] playerNames = new String[players + 1];
playerNames[0] = "Dealer";
for (int i = 1; i < players + 1; i++) {
playerNames[i] = input.next(); //something with this line the last time you use it
}
return playerNames;
}
public static int peoplePlaying() {
System.out.println("How many people are playing?");
int players = input.nextInt();
return players;
}
public static void main(String[] args) {
int players = peoplePlaying();
String[] playerNames = getNames(players);
Deck deck = new Deck();
Hand[] hands = firstTwoCards(players, playerNames, deck);
everyoneGo(deck, hands, players, playerNames);
winners(hands, playerNames);
}
}
//if you're smart you would have realized all this shuffling has absolutely no effect on counting cards lol now figure out why
手档：
public class Hand extends CardList {
public Hand(String label) {
super(label);
}
public void display() {
System.out.println(getLabel() + ": ");
for (int i = 0; i < size(); i++) {
System.out.println(getCard(i));
}
System.out.println();
}
}
甲板文件：
public class Deck extends CardList {
public Deck(String label) {
super(label);
for (int suit = 0; suit <= 3; suit++) {
for (int rank = 1; rank <= 13; rank++) {
addCard(new Card(rank, suit));
}
}
}
}
Cardlist文件：
import java.util.ArrayList;
import java.util.Random;
public class CardList {
public String name;
public ArrayList<Card> cards;
public CardList(String name) {
this.name = name;
this.cards = new ArrayList<Card>();
}
public String toString() {
String s = "";
for (int i = 0; i < cards.size(); i++) {
s = s + cards.get(i) + ", ";
}
return s;
}
public String dealerDisplay() {
return cards.get(0).toString();
}
public String getName() {
return name;
}
public Card getCard(int i) {
return cards.get(i);
}
public int howManyCards() {
return cards.size();
}
public void addCard(Card card) {
cards.add(card);
}
public void removeCard(int i) {
cards.remove(i);
}
public void swapCards(int i, int j) {
Card wait = cards.get(i);
cards.set(i, cards.get(j));
cards.set(j, wait);
}
public void shuffleDeck() {
for (int k = 0; k < 10; k++) { //not sure how well the algorithm works but if you do it 10 times it shouldn't matter how bad it is
for (int i = 0; i < howManyCards(); i++) {
int j = (int) (Math.random() * howManyCards());
swapCards(i, j);
}
}
}
}
最后是卡片对象：
public class Card {
int number;
int suit;
public static final String[] NUMBERS = {null, null, "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King", "Ace"};
public static final String[] SUITS = {"Diamonds", "Clubs", "Spades", "Hearts"};
public Card(int number, int suit) {
this.number = number;
this.suit = suit;
}
@Override
public String toString() {
return NUMBERS[number] + " of " + SUITS[suit];
}
public int getNumber() {
if (number == 14) { //used to tell if its an ace in blackjack file
return -10;
}
if (number < 11) {
return number;
}
else {
return 10;
}
}
}
好吧，所以希望你没有通过尝试阅读所有内容来杀死自己，并且我意识到我的代码风格/组织可以使用一些工作。
无论如何，他们有一些非常奇怪的事情，我似乎无法弄清楚。有时程序运行正常，你可以玩很多玩家的完整游戏，但有时候它会抛出一堆例外。
基本上如果你破产（超过21），程序会100％的时间抛出这个：
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:653)
at java.util.ArrayList.get(ArrayList.java:429)
at CardList.getCard(CardList.java:31)
at BlackJack.dealCard(BlackJack.java:151)
at BlackJack.dealerTurn(BlackJack.java:93)
at BlackJack.everyoneGo(BlackJack.java:138)
at BlackJack.main(BlackJack.java:209)
顺便说一句，如果有人可以解释在不存在的行中的例外情况，例如653（第一条消息）会非常有帮助。
它也会在某些时候抛出同样的例外情况，即使你没有破坏我认为经销商正在破坏，因为经销商会自动遵守经销商的常规赌场规则。
如果有人能搞清楚，我们将不胜感激，谢谢！