我需要做一个程序来模拟一个垃圾游戏。但我有问题的是要计算玩家赢或输的次数。我认为这是因为由于count不在main方法中，它将自己设置回0，但我不知道如何修复它。下面是运行程序的代码

public class Craps {

  public static void main(String args[]) {

    JOptionPane.showMessageDialog(null, "Welcome to my Craps game");
    JOptionPane.showMessageDialog(null, "Press 'OK' to roll the dice");

    //Calls the craps function
    playCraps();

    //Asks user if they want to play again
    String playAgain = JOptionPane.showInputDialog("Would you like to play again?\n(enter 'y' for yes)");

    while(playAgain.equals("y")){
      playCraps();
    }

  }

  static void playCraps(){
    Die die1 = new Die(6);
    Die die2 = new Die(6);

    boolean firstTry = false;

    //Generates the die
    int roll1 = die1.roll();
    int roll2 = die2.roll();

    int sum = roll1 + roll2;

    //counts the amount of times the player wins or loses
    int winCount = 0;
    int loseCount = 0;

    //Shows the rolls and the sum
    JOptionPane.showMessageDialog(null, "You rolled a " + roll1 + " and a " + roll2 + ".\n\nThe sum is " + sum);

    //If the player doesn't win or lose on their first try,
    //it keeps rolling until they win or lose
    if(sum == 7 || sum == 11){
      JOptionPane.showMessageDialog(null, "You win!!!");
      winCount++;
      firstTry = true;
    }else if(sum == 2 || sum == 3 || sum == 12) {
      JOptionPane.showMessageDialog(null, "You lose.");
      loseCount = loseCount + 1;
      firstTry = true;
    }else{
      JOptionPane.showMessageDialog(null,
      "You must keep rolling. If you roll a " + sum + " again, you win. If you roll a 7 before that, you lose.");

      while(firstTry == false){
        int secRoll1 = die1.roll();
        int secRoll2 = die2.roll();
        int secSum = secRoll1 + secRoll2;

        JOptionPane.showMessageDialog(null, "You rolled a " + secRoll1 + " and a " + secRoll2 + ".\n\nThe sum is " + secSum);

        if(secSum == sum){
          JOptionPane.showMessageDialog(null, "You matched!!!");
          winCount++;
          break;
        }

        if(secSum == 7){
          JOptionPane.showMessageDialog(null, "I'm sorry, you rolled a 7.");
          loseCount++;
          break;
        }
      }
    }

    //Shows the user how many times they win or lose
    JOptionPane.showMessageDialog(null, "Your current score..." + "\nwins: " + winCount + "\nlosses: " + loseCount);
  }

}

public class Die 
{
    private int sides;
    private int total;
    private int rolls;

    //The following method is called a 'Constructor'
    //it runs when a new 'Die' is created

    public Die(int numSides) 
    {
        sides=numSides;
        total=0;
        rolls=0;
    }

    //gets a die roll
    public int roll()
    {
        int result = (int)(Math.random()*sides+1);

        total = total+result;
        rolls++;

        return result;
    }

    // The following methods return information about the die

    public int getSides()
    {
        return sides;
    }

    public int getTotal()
    {
        return total;
    }

    public int getRolls()
    {
        return rolls;
    }

}