Java Blackjack Program（不让玩家命中）

Question

import java.util.*;
                        //Hope you enjoy playing Blackjack!
public class Blackjack {
    public static void main(String[] args) {
        System.out.println("//**BLACKJACK**//");
        Random r = new Random(); // generates cards
        Scanner sc = new Scanner(System.in);
        String replay;
        double dBal = 100.60; // fixed balance of the dealer
        double dBet = 1.0 + r.nextDouble() * 100.60;
        System.out.println("Enter your balance:"); // incorporating betting
        double pBal = sc.nextDouble();

        do {
            System.out.println("Enter amount you wish to bet upon:");
            double pBet = sc.nextDouble();
            if (pBet > pBal) { // you can't bet more than your balance ;)
                System.out.println("BLACKJACK error");
                System.exit(0);
            }
            System.out.println("You have chosen to bet: " + pBet);
            System.out.println("Dealer wishes to bet :" + dBet);
            pBal -= pBet;
            dBal -= dBet;

            int p1 = 1 + r.nextInt(11); // player card #1
            int p2 = 1 + r.nextInt(11); // player card #2
            int p3 = 1 + r.nextInt(11); // player card #3
            int playerTotal = p1 + p2;
            System.out.println("You drew: " + p1 + " and " + p2 + ". Your total is: " + playerTotal);

            int d1 = 1 + r.nextInt(11); // dealer card #1
            int d2 = 1 + r.nextInt(11); // dealer card #2
            int d3 = 1 + r.nextInt(11); // dealer card #3
            int dealerTotal = d1 + d2;
            System.out.println("Dealer drew: " + d1 + ". Would you like to hit 
or stay?");  // [player] choice to 'hit' or 'stay' 
            String playerChoice = sc.nextLine(); // this is the problem area
            if (playerChoice.equals("hit")) {    // 'hit' condition
                playerTotal = p1 + p2 + p3;   
                System.out.println("You drew: " + p3 + ". Your total is: " + 
playerTotal);
            } else if (playerChoice.equals("stay")) { // 'stay' condition
                System.out.println("Player stays.");
            }

            System.out.println("Would dealer like to hit or stay?");

            int key = 1 + r.nextInt(2); // random choice to decide whether 
dealer 'hits' or 'stays'
            switch (key) {
            case 1:
                dealerTotal = d1 + d2 + d3;
                System.out.println("Dealer hits. Dealer had " + d2 + ". Dealer 
drew " + d3 + ". Dealer's total is: "
                    + dealerTotal);
                break;
            case 2:
                System.out.println("Dealer stays. Dealer had " + d2 + ". 
Dealer's total is: " + dealerTotal);
                break;
            default:
                System.out.println("BLACKJACK error");
            }

            if (playerTotal > dealerTotal && playerTotal < 21) { // deciding 
who has won
                System.out.println("Player wins.");
                pBal += pBet += dBet;
            } else if (dealerTotal >= playerTotal && dealerTotal < 21) {
                System.out.println("Dealer wins.");
                dBal += dBet += pBet;
            } else if (p1 + p2 + p3 >= 21) {
                System.out.println("Player has busted. Dealer wins.");
                dBal += dBet += pBet;
            } else if (d1 + d2 + d3 >= 21) {
                System.out.println("Dealer has busted. Player wins.");
                pBal += pBet += dBet;
            } else {
                System.out.println("BLACKJACK error.");
            }


        System.out.println("You have " +pBal+ " remaining. Do you want to 
continue? (Y/N)");
        replay = sc.nextLine();
        }while (! replay.equals("N"));


   }
}
// Author: Saahil Karnik

我编写了一个Java程序，可以让你在计算机上玩二十一点。然而，在第36和37行，该程序不允许我输入我是否要“点击”或“停留”。我已经声明了一个Scanner对象并且也使用过它，但是不扫描该字符串。有人可以帮我这个吗？