Java 使用Swing按钮重置应用程序

尝试使用“再次播放”按钮重置按钮

import java.awt.*；
导入javax.swing.*；
导入java.awt.event.*；
导入java.awt.Toolkit；
导入java.awt.Image；
公共类HW4_tictoePanel扩展JFrame实现ActionListener{
//声明变量和数组
专用整数计数器=0；
私人字符串字母；
私有布尔赢=假；
私有int[][]winConditions=新int[][]{
{0,1,2}，{3,4,5}，{6,7,8}，//横向获胜
{0,3,6}，{1,4,7}，{2,5,8}，//垂直获胜
{0,4,8}，{2,4,6}//对角赢
};
//JFrame指令
//私有JButton按钮[]=新JButton[12]；
//私有JFrame游戏窗口=新JFrame（“Tic Tac Toe”）；
//端部框架
//面板演示
私有JPanel southPanel；//重播和退出按钮的面板
私有JButton[]optButtons；//退出和重播按钮
私人JPanel中心面板；
私有JButton[]游戏按钮；//Tic tac toe方块
私有网格布局myGridLayout；
//端面板演示
public HW4_tictoepanel（）//构造函数
{
super（“Tic Tac Toe”）；//super调用JFrame控制器
southPanel=newjpanel（）；//实例化面板
optButtons=newjbutton[2]；//创建一个包含2个按钮的数组
字符串[]按钮名称={“再次播放”，“退出”}；
centerPanel=newJPanel（）；//实例化面板
gameButtons=newjbutton[9]；//创建一个包含9个按钮的数组
myGridLayout=新的GridLayout（3,3,2,2）；
setLayout（new BorderLayout（））；//为JPanel设置布局
setLayout（myGridLayout）；//设置中心面板的布局
//将按钮添加到中心面板并添加ActionListener
对于（int i=0；i对于（int i=0；i，有那么多退出按钮，您只能退出。下面是一些代码改进：

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

public class HW4_TicTacToePanel extends JFrame implements ActionListener {
    private int counter = 0;
    private int [] [] winConditions = new int [] [] {
        {0, 1, 2}, {3, 4, 5}, {6, 7, 8}, // Horizontal wins
        {0, 3, 6}, {1, 4, 7}, {2, 5, 8}, // Vertical wins
        {0, 4, 8}, {2, 4, 6} // Diagonal wins
    };
    private JButton [] gameButtons;

    public HW4_TicTacToePanel ()
    {
        super ("Tic Tac Toe");
        JPanel southPanel = new JPanel ();
        JButton [] optButtons = new JButton [2];
        String [] buttonNames = {"Play Again", "Exit"};
        JPanel centerPanel = new JPanel (); 
        gameButtons = new JButton [9];
        GridLayout myGridLayout = new GridLayout (3, 3, 2, 2);
        setLayout (new BorderLayout ());
        centerPanel.setLayout (myGridLayout);
        for (int i = 0; i < gameButtons.length; i++) {
            gameButtons [i] = new JButton ();
            centerPanel.add (gameButtons [i]);
            gameButtons [i].addActionListener (this);
        }

        add (centerPanel, BorderLayout.CENTER); 
        for (int i = 0; i < optButtons.length; i++) {
            optButtons [i] = new JButton (buttonNames [i]);
            southPanel.add (optButtons [i]);
            optButtons [i].addActionListener (this);            
        }
        add (southPanel, BorderLayout.SOUTH); 
        setSize (300, 300);
        setLocation (200, 200);
        setVisible (true);
    }

    private static Icon [] icon = new ImageIcon [] {
        new ImageIcon ("/home/stefan/some/images/mini.null.jpg"), 
        new ImageIcon ("/home/stefan/daten/some/images/x.gif")};
    private static String [] letter = new String [] {"x", "o"}; 

    public void actionPerformed (ActionEvent a) {
        // Add Image icons
        counter++;
        boolean win = false;
        String cmd = a.getActionCommand ();
        if (cmd.equals ("Play Again"))
        {
            dispose ();
            HW4_TicTacToePanel.main (null); 
        } 
        else if (cmd.equals ("Exit"))
        {
            dispose ();
        } else {
            // Calculate whose turn it is by using modulus to determine even or odd
            JButton pressedButton = (JButton) a.getSource ();
            pressedButton.setIcon (icon [counter%2]);
            pressedButton.setText (letter[counter%2]);
            pressedButton.setEnabled (false);
        }
        //determine who won
        for (int i = 0; i <= 7; i++) {
            if (gameButtons [winConditions [i] [0]].getText ().equals (gameButtons [winConditions [i] [1]].getText ())
            & gameButtons [winConditions [i] [1]].getText ().equals (gameButtons [winConditions [i] [2]].getText ())
            & gameButtons [winConditions [i] [0]].getText () != "") {
                win = true;
            }
        }
        //Show victor dialog
        if (win == true) {
            JOptionPane.showMessageDialog (null, letter[counter%2] + " wins the game!");
        } else if (counter == 9 && win == false) {
            JOptionPane.showMessageDialog (null, "The game was a tie!");
        }
    }

    public static void main (String [] args) {
        new HW4_TicTacToePanel ();
    }
}

import java.awt.*；
导入javax.swing.*；
导入java.awt.event.*；
导入java.awt.Toolkit；
导入java.awt.Image；
公共类HW4_tictoePanel扩展JFrame实现ActionListener{
专用整数计数器=0；
私有int[][]winConditions=新int[][]{
{0,1,2}，{3,4,5}，{6,7,8}，//横向获胜
{0,3,6}，{1,4,7}，{2,5,8}，//垂直获胜
{0,4,8}，{2,4,6}//对角赢
};
私有JButton[]游戏按钮；
公共HW4_tictoe面板（）
{
超级（“Tic Tac Toe”）；
JPanel-southPanel=newjpanel（）；
JButton[]optButtons=新JButton[2]；
字符串[]按钮名称={“再次播放”，“退出”}；
JPanel centerPanel=newjpanel（）；
gameButtons=新的JButton[9]；
GridLayout myGridLayout=新的GridLayout（3,3,2,2）；
setLayout（新的BorderLayout（））；
centerPanel.setLayout（myGridLayout）；
对于（int i=0；iimport java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.Toolkit;
import java.awt.Image;

public class HW4_TicTacToePanel extends JFrame implements ActionListener {
    private int counter = 0;
    private int [] [] winConditions = new int [] [] {
        {0, 1, 2}, {3, 4, 5}, {6, 7, 8}, // Horizontal wins
        {0, 3, 6}, {1, 4, 7}, {2, 5, 8}, // Vertical wins
        {0, 4, 8}, {2, 4, 6} // Diagonal wins
    };
    private JButton [] gameButtons;

    public HW4_TicTacToePanel ()
    {
        super ("Tic Tac Toe");
        JPanel southPanel = new JPanel ();
        JButton [] optButtons = new JButton [2];
        String [] buttonNames = {"Play Again", "Exit"};
        JPanel centerPanel = new JPanel (); 
        gameButtons = new JButton [9];
        GridLayout myGridLayout = new GridLayout (3, 3, 2, 2);
        setLayout (new BorderLayout ());
        centerPanel.setLayout (myGridLayout);
        for (int i = 0; i < gameButtons.length; i++) {
            gameButtons [i] = new JButton ();
            centerPanel.add (gameButtons [i]);
            gameButtons [i].addActionListener (this);
        }

        add (centerPanel, BorderLayout.CENTER); 
        for (int i = 0; i < optButtons.length; i++) {
            optButtons [i] = new JButton (buttonNames [i]);
            southPanel.add (optButtons [i]);
            optButtons [i].addActionListener (this);            
        }
        add (southPanel, BorderLayout.SOUTH); 
        setSize (300, 300);
        setLocation (200, 200);
        setVisible (true);
    }

    private static Icon [] icon = new ImageIcon [] {
        new ImageIcon ("/home/stefan/some/images/mini.null.jpg"), 
        new ImageIcon ("/home/stefan/daten/some/images/x.gif")};
    private static String [] letter = new String [] {"x", "o"}; 

    public void actionPerformed (ActionEvent a) {
        // Add Image icons
        counter++;
        boolean win = false;
        String cmd = a.getActionCommand ();
        if (cmd.equals ("Play Again"))
        {
            dispose ();
            HW4_TicTacToePanel.main (null); 
        } 
        else if (cmd.equals ("Exit"))
        {
            dispose ();
        } else {
            // Calculate whose turn it is by using modulus to determine even or odd
            JButton pressedButton = (JButton) a.getSource ();
            pressedButton.setIcon (icon [counter%2]);
            pressedButton.setText (letter[counter%2]);
            pressedButton.setEnabled (false);
        }
        //determine who won
        for (int i = 0; i <= 7; i++) {
            if (gameButtons [winConditions [i] [0]].getText ().equals (gameButtons [winConditions [i] [1]].getText ())
            & gameButtons [winConditions [i] [1]].getText ().equals (gameButtons [winConditions [i] [2]].getText ())
            & gameButtons [winConditions [i] [0]].getText () != "") {
                win = true;
            }
        }
        //Show victor dialog
        if (win == true) {
            JOptionPane.showMessageDialog (null, letter[counter%2] + " wins the game!");
        } else if (counter == 9 && win == false) {
            JOptionPane.showMessageDialog (null, "The game was a tie!");
        }
    }

    public static void main (String [] args) {
        new HW4_TicTacToePanel ();
    }
}