import java.util.Scanner;
public class BlackJack {
static Scanner stdin = new Scanner(System.in);
static String[] deck = new String[52];
static boolean[] userAceCheck = new boolean[11];
static boolean[] dealerAceCheck = new boolean[11];
static String dealerCard = "", dealerHiddenCard = "", userCard = "";
static int dealerCounter = 0, userCounter = 0;
public static void main (String[] args) {
System.out.println("\n***Welcome to the grand Command Line Casino!***" +
"\n***Today we are only playing single deck Black Jack!***" +
"\n***But that's what we do everyday! HAHA!***\n");
//Creates Deck of cards
String[] suit = { "Clubs", "Diamonds", "Hearts", "Spades" };
String[] rank = { "2", "3", "4", "5", "6", "7", "8", "9", "10",
"Jack", "Queen", "King", "Ace" };
for (int a=0; a < rank.length; a++) {
for (int b=0; b < suit.length; b++){
deck[suit.length*a + b] = (rank[a] +" of "+ suit[b]);
}
}
//Assigns two cards to the dealer
//Finds the Integer value of each card and adds it to the dealerCounter
//first dealer card
System.out.println("----Dealer's Cards:----");
System.out.println("(Dealer's First Card Placed Face Down)");
dealerHiddenCard = randomCard(dealerHiddenCard);
dealerCard = assignValue(dealerHiddenCard);
if (dealerCard == "11") {
dealerAceCheck[0] = true; }
dealerCounter = Integer.parseInt(dealerCard);
//second dealer card
dealerCard = randomCard(dealerCard);
System.out.println(dealerCard);
dealerCard = assignValue(dealerCard);
if (dealerCard == "11") {
dealerAceCheck[1] = true; }
dealerCounter += Integer.parseInt(dealerCard);
//Assigns two cards to the user
//Finds the Integer value of each card and adds it to the userCounter
//first user card
System.out.println("\n----Your Cards:----");
userCard = randomCard(userCard);
System.out.println(userCard);
userCard = assignValue(userCard);
if (userCard == "11") {
userAceCheck[0] = true; }
userCounter = Integer.parseInt(userCard);
//second user card
userCard = randomCard(userCard);
System.out.println(userCard);
userCard = assignValue(userCard);
if (userCard == "11") {
userAceCheck[1] = true; }
userCounter += Integer.parseInt(userCard);
userCounter = userAceHandler(userCounter);
if (userCounter == 21) {
System.out.println("Black Jack! You Win!");
System.exit(1); }
hitStay();
dealersTurn();
}
public static void hitStay() {
//Processes a user 'Hit or Stay' selection
int userInput;
for(int i=2; i<11; i++) {
System.out.println("\nHit or Stay?");
System.out.println("(1) Hit\n(2) Stay");
userInput = stdin.nextInt();
if (userInput == 1){
//Draws another card and adds it to the userCounter
//Decides where to go depending on new userCounter value
userCard = randomCard(userCard);
System.out.println("\n"+userCard);
userCard = assignValue(userCard);
if (userCard == "11") {
userAceCheck[i] = true; }
userCounter += Integer.parseInt(userCard);
userCounter = userAceHandler(userCounter);
System.out.print("(Current Count = "+userCounter+")");
if (userCounter == 21) {
System.out.println("\n21!");
userInput = 2; }
if (userCounter < 21) {
continue; }
if (userCounter > 21) {
System.out.println("Bust! Maybe next time");
System.exit(1); }
}
if (userInput == 2){
System.out.println("\nAlright, dealer's turn");
System.out.println("\n(Dealer Flips His Hidden Card Over)");
System.out.println(dealerHiddenCard);
System.out.println("Dealer Count = "+dealerCounter+")");
break;
}
}
}
public static void dealersTurn() {
//processes the dealers turn after the user has decided to 'stay'
for (int i=2; i<11; i++) {
dealerCounter = dealerAceHandler(dealerCounter);
if (dealerCounter > userCounter) {
System.out.println("\nDealer Wins! Maybe next time."); }
System.exit(1);
if (dealerCounter == userCounter && dealerCounter > 17) {
System.out.println("\nPush! (tie game)");
System.exit(1); }
if (dealerCounter > userCounter && dealerCounter < 21
&& dealerCounter >= 17) {
System.out.println("\nDealer Wins! Maybe next time.");
System.exit(1); }
if (dealerCounter < userCounter && dealerCounter >= 17) {
System.out.println("\nYou Win!");
System.exit(1); }
if (dealerCounter > 21) {
System.out.println("\nDealer Bust! You Win!");
System.exit(1); }
if (dealerCounter == 21) {
System.out.println("\nDealer Wins! Maybe next time.");
System.exit(1); }
if (dealerCounter < userCounter || dealerCounter < 17) {
dealerCard = randomCard(dealerCard);
System.out.println("\n"+dealerCard);
dealerCard = assignValue(dealerCard);
if (dealerCard == "11") {
dealerAceCheck[i] = true; }
dealerCounter += Integer.parseInt(dealerCard);
System.out.println("(Dealer Count = "+dealerCounter+")");
continue; }
}
}
public static String randomCard(String draw) {
//Pulls a random card from the deck
while (true) {
//Generates a random number between 0 and 52
int card = (int)(Math.random()*52);
draw = deck[card];
//Makes sure the same card isn't drawn twice
if (draw == "0") {
continue;}
else {
deck[card] = "0";
return draw;}
}
}
public static String assignValue(String cardName) {
//Assigns a number value to the card
if (cardName.contains("2")) {
cardName = "2"; }
if (cardName.contains("3")) {
cardName = "3"; }
if (cardName.contains("4")) {
cardName = "4"; }
if (cardName.contains("5")) {
cardName = "5"; }
if (cardName.contains("6")) {
cardName = "6"; }
if (cardName.contains("7")) {
cardName = "7"; }
if (cardName.contains("8")) {
cardName = "8"; }
if (cardName.contains("9")) {
cardName = "9"; }
if (cardName.contains("10")) {
cardName = "10"; }
if (cardName.contains("Jack")) {
cardName = "10"; }
if (cardName.contains("Queen")){
cardName = "10"; }
if (cardName.contains("King")) {
cardName = "10"; }
if (cardName.contains("Ace")) {
cardName = "11"; }
return cardName;
}
public static int userAceHandler(int userCounter) {
//handles the situation if an Ace is drawn for the user
for (int i=0; i<11; i++){
if (userCounter >= 22 && userAceCheck[i] == true) {
userAceCheck[i] = false;
userCounter = userCounter - 10;
break; }
else {
if (i==10) { break; }
else { continue; } }
}
return userCounter;
}
public static int dealerAceHandler(int dealerCounter) {
//handles the situation if an Ace is drawn for the dealer
for (int i=0; i<11; i++){
if (dealerCounter >= 22 && dealerAceCheck[i] == true) {
dealerAceCheck[i] = false;
dealerCounter = dealerCounter - 10;
break; }
else {
if (i==10) { break; }
else { continue; } }
}
return dealerCounter;
}
}
所以我的main方法首先顺利运行，然后调用我的hitStay（）方法。在此hitStay（）完成后，它无法回到main方法然后调用dealersTurn（）方法。
我最近添加了一个for循环，但我似乎无法弄清楚为什么它现在不起作用。我觉得这是问题，因为它在for循环之前工作。我对编码真的很陌生，任何帮助都会受到赞赏。谢谢！
答案 0 :(得分：1)
从您的代码中使用System.exit(1)即可终止您的程序
来自exit(int status)
终止当前运行的Java虚拟机。该参数用作状态代码;按照惯例，非零状态代码表示异常终止 此方法在类Runtime中调用exit方法。此方法永远不会正常返回。
如果您希望将回复控制权交给来电者，请从程序中删除System.exit使用return语句。
见JLS 14.17. The return Statement
例如：
if (dealerCounter > 21){
System.out.println("\nDealer Bust! You Win!");
return;
}