我正在制作一个简单的Black Jack游戏，然后完成并以为我问我的老师他的想法，因为该代码有效，但是他说我的return语句不正确。我知道它们处于空白状态，但是我并不想返回任何东西，而只是想在输赢时返回到main方法（即主菜单）。为什么这不正确，或者我怎么告诉他这是正确的。
我尝试将main方法放入其他方法中，但是没有用，除了我对Java相当陌生（通常是编码）并且需要一些帮助。
{
System.out.println("\n READY AND START");
Scanner input = new Scanner(System.in);
System.out.println("What is your name?");
String name = input.nextLine();
System.out.println("what is the dealer called?");
String cname = input.nextLine();
System.out.println("How much money are you willing to bet?");
int wager = input.nextInt();
int playerTotal, computerTotal, playerRunning, computerRunning;
playerTotal = 0;
computerTotal = 0;
Random cards = new Random();
for (int i = 1; i <= 2; i++) {
playerRunning = 2 + cards.nextInt(10);
playerTotal += playerRunning;
System.out.println(name + " your starting card is " + playerRunning);
}
System.out.println(name + " your starting hand total is " + playerTotal);
if (playerTotal == 21) {
System.out.println("i guess the house doesnt always win" + name + " you got a blackjack here is your money $" + (wager * 1.5));
return;
} else if (playerTotal > 21) {
System.out.println(name + " you are bust LOL, thank you for the $" + wager);
return;
}
computerRunning = 2 + cards.nextInt(10);
computerTotal += computerRunning;
System.out.println(cname + " the dealers starting card is " + computerRunning);
computerRunning = 2 + cards.nextInt(10);
computerTotal += computerRunning;
System.out.println(cname + " the dealers is keeping their second card hidden");
if (computerTotal == 21) {
System.out.println(computerTotal + " the house always wins haha, you lost your wager of $" + wager);
return;
} else if (computerTotal > 21) {
System.out.println(computerTotal + "The house has busted with here is your money $" + (wager * 2));
return;
}
input = new Scanner(System.in);
System.out.println(name + " do you want to continue? The dealer thinks you can continue. \n Y or N");
String hit = input.nextLine();
while (hit.equalsIgnoreCase("y")) {
playerRunning = 2 + cards.nextInt(10);
playerTotal += playerRunning;
System.out.println(name + " your new card is " + playerRunning);
System.out.println(name + " your hand total is " + playerTotal);
if (playerTotal == 21) {
System.out.println(" \ni guess the house doesnt always win" + name + " well here is your money and sum $" + (wager * 2));
return;
} else if (playerTotal > 21) {
System.out.println(name + " \nyou are bust LOL, thank you for the wager $" + wager);
return;
}
if (computerTotal > 16) {
System.out.println(cname + " the dealers is okay with their hand");
} else {
computerRunning = 2 + cards.nextInt(10);
computerTotal += computerRunning;
System.out.println(cname + " the dealers draws another card");
if (computerTotal == 21) {
System.out.println(cname + " the dealer got " + computerTotal + " the house always wins haha, you lost your wager of $" + wager);
return;
} else if (computerTotal > 21) {
System.out.println(computerTotal + " The house has busted, you got doulbe your wager $" + (wager * 2));
return;
}
}
System.out.println(name + " do you want a hit? The dealer thinks you can continue. \n Y or N");
hit = input.nextLine();
}
do {
computerRunning = 2 + cards.nextInt(10);
computerTotal += computerRunning;
System.out.println(cname + " the dealers draws another card");
if (computerTotal == 21) {
System.out.println(cname + " the dealer got " + computerTotal + " the house always wins haha, you lost your wager of $" + wager);
return;
} else if (computerTotal > 21) {
System.out.println(computerTotal + " The house has busted, you got doulbe your wager $" + (wager * 2));
return;
}
} while (computerTotal < 16);
if (playerTotal > computerTotal && playerTotal <= 21) {
System.out.println(name + " i guess the house doesnt always win, here is your money $" + (wager * 2));
} else if (computerTotal > playerTotal && computerTotal <= 21) {
System.out.println("the house always wins haha, the dealer had " + computerTotal + " thank you for the money $" + wager);
} else if (computerTotal == playerTotal && computerTotal <= 21 && playerTotal <= 21) {
System.out.println("WE DRAWED??? sigh good game i guess BUT house always wins so thank you for the $" + wager);
} else if (computerTotal > 21 && playerTotal > 21) {
System.out.println("and we both busted so no one wins");
}
}
;
``````
这只是我的游戏方法的一部分，具有我的返回功能，并且您可以看到它是一个带有返回的空格，因为我不想返回任何内容，我只想返回主菜单而不显示任何内容。真正节省。游戏运行正常，我不知道为什么会出现问题
答案 0 :(得分：0)
如上文markspace所述，对21点的这种解释的整体流程是有缺陷的。
但是，您的退货说明不正确的主要原因可能是，如果玩家和发牌人都收到二十一点（21），则说明是推送（钱移至下一轮）或您收回了钱。获得二十一点时，您永远都不应亏钱。
查看以下链接以查看游戏流程：https://www.practice-blackjack.com/blackjack-the-flow-of.html
另一个原因可能是您需要下注并将结果返回到函数中，以加回到玩家拥有的总金额中。