Ich bin ein Anfänger im Erlernen der Java-Programmierung und spiele Tic Tac Toe.

Wenn ich mein Spiel beendet habe, kann ich das Spiel nicht fortsetzen, da das Programm beendet wird. Was soll ich diesem Code hinzufügen? Da ich die Paint-Methode nicht verwende, kann repaint () nicht verwendet werden.

import java.awt.*;  
import java.awt.event.*;
import javax.swing.*;

public class TicTacToeV1 implements ActionListener {
    /*Instance Variables*/
    private JFrame window = new JFrame("Tic-Tac-Toe");
    private JButton button1 = new JButton("");
    private JButton button2 = new JButton("");
    private JButton button3 = new JButton("");
    private JButton button4 = new JButton("");
    private JButton button5 = new JButton("");
    private JButton button6 = new JButton("");
    private JButton button7 = new JButton("");
    private JButton button8 = new JButton("");
    private JButton button9 = new JButton("");

    private String letter = "";
    public static int count = 0;
    public TicTacToeV1(){           
        /*Create Window*/
        window.setSize(300,300);
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        window.setLayout(new GridLayout(3,3));

        /*Add Buttons To The Window*/
        window.add(button1);
        window.add(button2);
        window.add(button3);
        window.add(button4);
        window.add(button5);
        window.add(button6);
        window.add(button7);
        window.add(button8);
        window.add(button9);

        /*Add The Action Listener To The Buttons*/
        button1.addActionListener(this);
        button2.addActionListener(this);
        button3.addActionListener(this);
        button4.addActionListener(this);
        button5.addActionListener(this);
        button6.addActionListener(this);
        button7.addActionListener(this);
        button8.addActionListener(this);
        button9.addActionListener(this);

        /*Make The Window Visible*/
        window.setVisible(true);

        String input = JOptionPane.showInputDialog("Please select ur pawn: \n1) X\n2) O");
        int pawn = Integer.parseInt(input);
        if ( input.equals("2")){
              setCount(1);
        }
    }

    public static void setCount (int co){
        count = co;            
    }

    public void actionPerformed(ActionEvent a) {    
        count++;

        /*Calculate Who's Turn It Is*/
        if(count == 1 || count == 3 || count == 5 || count == 7 || count == 9|| count == 11){
            letter = "X";

        } else if(count == 2 || count == 4 || count == 6 || count == 8 || count == 10){
            letter = "O";
        }

        /*Display X's or O's on the buttons*/
        if(a.getSource() == button1){
            button1.setText(letter);
            button1.setEnabled(false);
        } else if(a.getSource() == button2){
            button2.setText(letter);
            button2.setEnabled(false);
        } else if(a.getSource() == button3){
            button3.setText(letter);
            button3.setEnabled(false);
        } else if(a.getSource() == button4){
             button4.setText(letter);
             button4.setEnabled(false);
        } else if(a.getSource() == button5){
             button5.setText(letter);
             button5.setEnabled(false);
        } else if(a.getSource() == button6){
             button6.setText(letter);
             button6.setEnabled(false);
        } else if(a.getSource() == button7){
             button7.setText(letter);
             button7.setEnabled(false);
        } else if(a.getSource() == button8){
             button8.setText(letter);
             button8.setEnabled(false);
        } else if(a.getSource() == button9){
             button9.setText(letter);
             button9.setEnabled(false);
        }       
    }

    public static void main(String[] args){           
            new TicTacToeV1();
    }
}