接下来是完成菜单栏的功能

游戏菜单

添加菜单监听器（com.panel/BombJMenuBar.java）

在init()方法中插入

// 开局事件处理
        menuItemStart.addActionListener(new ActionListener() {
            
            @Override
            public void actionPerformed(ActionEvent e) {
                mainframe.reStartGame();
                
            }
        });
        
        // 添加事件监听器
        MenuListener listener = new MenuListener(mainframe);
        menuItemStart.addActionListener(listener);
        menuItemLow.addActionListener(listener);
        menuItemMid.addActionListener(listener);
        menuItemHigh.addActionListener(listener);
        menuItemOrder.addActionListener(listener);
        
        menuHeroLow.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                new Hero(mainframe);
        }});
        menuHeroMid.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                new Hero1(mainframe);
        }});
        menuHeroHigh.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                new Hero2(mainframe);
        }});
        
        menuItemAbout.addActionListener(listener);
        
        // 后门外挂方便测试
        menuItemHole.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                
            }
        });
        
        menuItemExit.addActionListener(new ActionListener() {    //加一个系统退出的处理监听
            public void actionPerformed(ActionEvent e) {
                System.exit(0);

            }
        });

编写等级菜单监听类（com.listener/MenuListener）

// 等级菜单监听器
public class MenuListener implements ActionListener {
    JMenuItem jMenuItem;

    JTextField jTextField=new JTextField();
    MainFrame mainframe;
    
    public MenuListener(MainFrame mainframe){
        this.mainframe = mainframe;
        
    }
    
    
public void actionPerformed(ActionEvent e) {
        
        if(e.getActionCommand().equals("开局(N)")){
            this.mainframe.reStartGame();
        }
        if(e.getActionCommand().equals("初级(B)")){
                Tools.rows = 9;
                Tools.cols = 9;
                Tools.allcount = 10;
                Tools.currentLevel = Tools.LOWER_LEVEL;
                this.mainframe.reStartGame();
        }
        if(e.getActionCommand().equals("中级(I)")){

                Tools.rows = 16;
                Tools.cols = 16;
                Tools.allcount = 40;
                Tools.currentLevel = Tools.MIDDLE_LEVEL;
                this.mainframe.reStartGame();
            }
        if(e.getActionCommand().equals("高级(E)")){
                    Tools.rows = 16;
                    Tools.cols = 30;
                    Tools.allcount = 99;
                    Tools.currentLevel = Tools.HEIGHT_LEVEL;
                    this.mainframe.reStartGame();
                }
         if(e.getActionCommand().equals("自定义(C)")){
                     new UserDefined(mainframe);

                }
         if(e.getActionCommand().equals("关于扫雷(A)")){
                 new About(mainframe);
            }
         }
}

注意：在雷区BombJPanel.java中之前是把行和列写成固定的，实现初级、中级、高级时要进行下述修改：

//    MineLabel[][] labels = new MineLabel[9][9];
    MineLabel[][] labels = new MineLabel[Tools.rows][Tools.cols];

运行效果：

自定义菜单项（com.dialog/UserDefined.java）

需求分析：出现弹窗界面，数据校验不能超过三位，只能为数字。

通过继承JDialog实现用户自定义对话框

public class UserDefined  extends JDialog {
    // 自定义
    private static final long serialVersionUID = 1L;

    private JLabel jLabelHigh = new JLabel("高度： ");
    private JLabel jLabelWide = new JLabel("宽度： ");
    private JLabel jLabelBomb = new JLabel("雷数： ");
    private JLabel jLabelMessage = new JLabel("    ");

    private JTextField jTextFieldHigh;
    private JTextField jTextFieldWide;
    private JTextField jTextFieldBomb;

    private JPanel panel;
    private JButton buttonSure;
    private JButton buttonCancer;
    MainFrame mainFrame;

    public UserDefined(final MainFrame mainFrame) {

        super(mainFrame);
        this.mainFrame = mainFrame;
        this.setIconImage(Tools.getImageIcon().getImage());
        jLabelMessage.setFont(new Font("楷书", Font.PLAIN, 12));
        jLabelMessage.setForeground(Color.red);
        this.setTitle("自定义雷区");
        this.add(getPanel());
        this.add(jLabelMessage, BorderLayout.NORTH);
        this.setSize(new Dimension(200, 150));
        this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
        this.setLocationRelativeTo(null);
        this.setResizable(false);

        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowDeactivated(WindowEvent e) {

                mainFrame.reStartGame();
            }

        });
        this.setModal(true);
        this.setVisible(true);

    }

    public JPanel getPanel() {
        JPanel jPanel = new JPanel();

        Border border1 = BorderFactory.createEmptyBorder(5, 20, 5, 5);
        panel = new JPanel();
        panel.setLayout(new GridLayout(1, 2));
        Box boxHigh = Box.createHorizontalBox();
        jTextFieldHigh = new JTextField(Tools.rows + "");
        jTextFieldHigh.setPreferredSize(new Dimension(30, 20));
        jTextFieldHigh.addKeyListener(new KeyListener() {

            @Override
            public void keyReleased(KeyEvent e) {
                String text = jTextFieldHigh.getText();

                Pattern pattern = Pattern.compile("^[0-9]{1,3}$");
                Matcher matcher = pattern.matcher(text);
                if (!matcher.matches()) {
                    jLabelMessage.setText("请输入数字，不能超过三位");
                    if (text.length() > 3) {
                        jTextFieldHigh.setText(text.substring(0, 3));
                    }

                }

            }

            @Override
            public void keyTyped(KeyEvent e) {

                char ch = e.getKeyChar();
                if ((ch < '0') || (ch > '9')) {
                    jLabelMessage.setText("请输入数字，不能超过三位");
                    e.setKeyChar((char) 8);
                } else {
                    jLabelMessage.setText("    ");

                }

            }

            @Override
            public void keyPressed(KeyEvent e) {

            }
        });

        boxHigh.add(jLabelHigh);
        boxHigh.add(jTextFieldHigh);

        Box boxWide = Box.createHorizontalBox();
        jTextFieldWide = new JTextField(Tools.cols + "");
        jTextFieldWide.setPreferredSize(new Dimension(30, 20));
        jTextFieldWide.addKeyListener(new KeyListener() {

            @Override
            public void keyReleased(KeyEvent e) {
                String text = jTextFieldWide.getText();

                Pattern pattern = Pattern.compile("^[0-9]{1,3}$");
                Matcher matcher = pattern.matcher(text);
                if (!matcher.matches()) {
                    jLabelMessage.setText("请输入数字，不能超过三位");
                    if (text.length() > 3) {
                        jTextFieldWide.setText(text.substring(0, 3));
                    }

                }

            }

            @Override
            public void keyTyped(KeyEvent e) {

                char ch = e.getKeyChar();
                if ((ch < '0') || (ch > '9')) {
                    jLabelMessage.setText("请输入数字，不能超过三位");
                    e.setKeyChar((char) 8);
                } else {
                    jLabelMessage.setText("    ");

                }
            }

            @Override
            public void keyPressed(KeyEvent e) {

            }
        });
        boxWide.add(jLabelWide);
        boxWide.add(jTextFieldWide);

        Box boxBomb = Box.createHorizontalBox();
        jTextFieldBomb = new JTextField(Tools.bombCount + "");
        jTextFieldBomb.setPreferredSize(new Dimension(30, 20));
        jTextFieldBomb.addKeyListener(new KeyListener() {

            @Override
            public void keyReleased(KeyEvent e) {
                String text = jTextFieldBomb.getText();

                Pattern pattern = Pattern.compile("^[0-9]{1,3}$");
                Matcher matcher = pattern.matcher(text);
                if (!matcher.matches()) {
                    jLabelMessage.setText("请输入数字，不能超过三位");
                    if (text.length() > 3) {
                        jTextFieldBomb.setText(text.substring(0, 3));
                    }
                }
            }

            @Override
            public void keyTyped(KeyEvent e) {

                char ch = e.getKeyChar();
                if ((ch < '0') || (ch > '9')) {
                    jLabelMessage.setText("请输入数字，不能超过三位");
                    e.setKeyChar((char) 8);
                } else {
                    jLabelMessage.setText("    ");
                }
            }

            @Override
            public void keyPressed(KeyEvent e) {
            }
        });
        boxBomb.add(jLabelBomb);
        boxBomb.add(jTextFieldBomb);

        Box boxS = new Box(BoxLayout.Y_AXIS);
        boxS.add(boxHigh);
        boxS.add(Box.createVerticalStrut(8));
        boxS.add(boxWide);
        boxS.add(Box.createVerticalStrut(8));
        boxS.add(boxBomb);
        boxS.add(Box.createVerticalStrut(8));
        boxS.setBorder(border1);
        Box boxT = new Box(BoxLayout.Y_AXIS);
        buttonSure = new JButton("确定");

        UserDefinedListener definedListener = new UserDefinedListener(this, mainFrame);
        buttonSure.setPreferredSize(new Dimension(70, 30));
        buttonSure.setMargin(new Insets(0, 2, 0, 2));
        buttonSure.addActionListener(definedListener);

        buttonCancer = new JButton("取消");
        buttonCancer.setMargin(new Insets(0, 2, 0, 2));
        buttonCancer.setSize(new Dimension(70, 30));
        buttonCancer.addActionListener(definedListener);
        boxT.add(buttonSure);
        boxT.add(Box.createVerticalStrut(25));
        boxT.add(buttonCancer);
        boxT.setBorder(border1);
        panel.add(boxS);
        panel.add(boxT);

        Border border = BorderFactory.createEmptyBorder(3, 15, 5, 15);
        jPanel.setBorder(border);
        jPanel.add(panel);
        return jPanel;
    }
}

自定义窗口监听器（com.listener/UserDefinedListener.java）

public class UserDefinedListener implements ActionListener {
    
    UserDefined userDefined;

    MainFrame mainFrame;

    public UserDefinedListener(UserDefined userDefined, MainFrame mainFrame) {
        this.mainFrame = mainFrame;
        this.userDefined = userDefined;

    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == userDefined.getButtonCancer()) {
            userDefined.dispose();
            mainFrame.reStartGame();
        } else if (e.getSource() == userDefined.getButtonSure()) {
            String highT = userDefined.getjTextFieldHigh().getText();
            Pattern pattern = Pattern.compile("^[0-9]{1,3}$");
            Matcher matcher = pattern.matcher(highT);
            int row = 0;
            if (!matcher.matches()) {
                userDefined.getjLabelMessage()
                        .setText("输入的行数范围应在9-30之间");
                return;
            } else {
                row = Integer.parseInt(highT);
                if (row < 9 || row > 30) {
                    userDefined.getjLabelMessage().setText(
                            "输入的行数范围应在9-30之间");
                    return;
                }

            }
            String colT = userDefined.getjTextFieldWide().getText();
            int col = 0;
            try {
                col = Integer.parseInt(colT);
                if (col < 9 || col > 30) {
                    userDefined.getjLabelMessage().setText(
                            "输入的列数范围应在9-30之间");
                    return;
                }
            } catch (Exception e2) {
                userDefined.getjLabelMessage().setText(
                        "列数应该为数字且范围应在9-30之间");
                return;
            }

            String mineT = userDefined.getjTextFieldBomb().getText();
            int mine = 0;
            try {
                mine = Integer.parseInt(mineT);
                if (mine < 10) {
                    mine = 10;
                } else {
                    mine = Math.min(mine, Tools.rows * Tools.cols * 4 / 5);
                }
            } catch (Exception e3) {
                userDefined.getjLabelMessage().setText("雷数应该为数字");
                return;
            }
            userDefined.dispose();
            Tools.rows = row;
            Tools.cols = col;
            Tools.allcount = mine;

            mainFrame.reStartGame();
        }
    }
}

运行效果：

英雄榜

弹出胜利窗口（com.dialog/Win.java）

public class Win extends JDialog {
    MainFrame mainframe;
    private JTextField text;
    TreeSet<Own> LOWER = new TreeSet<Own>();
    TreeSet<Own> MIDDLE = new TreeSet<Own>();
    TreeSet<Own> HEIGHT = new TreeSet<Own>();
    
    public Win(MainFrame mainframe){
        this.mainframe = mainframe;
        this.setIconImage(Tools.getImageIcon().getImage());
        this.setTitle("扫雷成功");
        this.setLocationRelativeTo(null);
        this.setSize(200, 150);
        this.init();
        this.setVisible(true);
    }

    private void init() {
        // 存放记入
        JPanel panel = new JPanel();
        panel.setLayout(new GridLayout(4,1));
        JLabel label = new JLabel("好厉害！请留下你的大名");
        
        panel.add(label);
        
        text = new JTextField();
        panel.add(text);
//        times = mainframe.getTimer().getTimes();
        JLabel labTime = new JLabel("你所使用的时间："+Tools.timecount);
        panel.add(labTime);
        
        JButton butys = new JButton("保存");
        butys.addActionListener(new ActionListener() {    
            @Override
            public void actionPerformed(ActionEvent e) {

                if(Tools.currentLevel.equals("初级")){
                    if(Tools.time1>=Tools.timecount && Tools.time2>=Tools.timecount && Tools.time3>=Tools.timecount){
                        Tools.time3 = Tools.time2;
                        Tools.name3 = Tools.name2;
                        Tools.time2 = Tools.time1;
                        Tools.name2 = Tools.name1;
                        
                        Tools.time1 = Tools.timecount;
                        Tools.name1=text.getText();
                        
                    }else if(Tools.time2>=Tools.timecount && Tools.time3>=Tools.timecount && Tools.time1<=Tools.timecount){
                        Tools.time3 = Tools.time2;
                        Tools.name3 = Tools.name2;
                        
                        Tools.time2 = Tools.timecount;
                        Tools.name2=text.getText();
                        
                    }else if(Tools.time3>=Tools.timecount && Tools.time1<=Tools.timecount && Tools.time2<=Tools.timecount){
                        Tools.time3 = Tools.timecount;
                        Tools.name3=text.getText();
                    }
                }
                if(Tools.currentLevel.equals("中级")){                
                    if(Tools.time01>=Tools.timecount && Tools.time02>=Tools.timecount && Tools.time03>=Tools.timecount){
                        Tools.time03 = Tools.time02;
                        Tools.name03 = Tools.name02;
                        Tools.time02 = Tools.time01;
                        Tools.name02 = Tools.name01;
                        
                        Tools.time01 = Tools.timecount;
                        Tools.name01=text.getText();
                        
                    }else if(Tools.time02>=Tools.timecount && Tools.time03>=Tools.timecount && Tools.time01<=Tools.timecount){
                        Tools.time03 = Tools.time02;
                        Tools.name03 = Tools.name02;
                        
                        Tools.time02 = Tools.timecount;
                        Tools.name02=text.getText();
                        
                    }else if(Tools.time03>=Tools.timecount && Tools.time01<=Tools.timecount && Tools.time02<=Tools.timecount){
                        Tools.time03 = Tools.timecount;
                        Tools.name03=text.getText();
                    }
                }
                if(Tools.currentLevel.equals("高级")){                
                    if(Tools.time001>=Tools.timecount && Tools.time002>=Tools.timecount && Tools.time003>=Tools.timecount){
                        Tools.time003 = Tools.time002;
                        Tools.name003 = Tools.name002;
                        Tools.time002 = Tools.time001;
                        Tools.name002 = Tools.name001;
                        
                        Tools.time001 = Tools.timecount; 
                        Tools.name001=text.getText();
                        
                    }else if(Tools.time002>=Tools.timecount && Tools.time003>=Tools.timecount && Tools.time001<=Tools.timecount){
                        Tools.time003 = Tools.time002;
                        Tools.name003 = Tools.name002;
                        
                        Tools.time002 = Tools.timecount;
                        Tools.name002=text.getText();
                        
                    }else if(Tools.time003>=Tools.timecount && Tools.time001<=Tools.timecount && Tools.time002<=Tools.timecount){
                        Tools.time003 = Tools.timecount;
                        Tools.name003=text.getText();
                    }
                }
                Win.this.dispose();
            }
        });
        panel.add(butys);
        this.add(panel);
    }
    public JTextField getText() {
        return text;
    }

运行效果：

英雄榜类（com.dialog/Hero.java）

英雄榜分为初级、中级、高级英雄榜；每个英雄榜类逻辑是一样的，通过胜利窗口的事件监听器判断是哪个等级的英雄榜数据，然后写入临时变量中保存。以此类推编写中级、高级英雄榜Hero1,Hero2，当然也可以只写一个类，不过需要多加一些判断条件。

public class Hero extends JDialog{
        private JLabel jlabel1;    
        private JLabel jlabel2;
        private JLabel jlabel3;
        private JLabel jlabel4;
        private JLabel jlabel5;
        private JLabel jlabel6;
        private JLabel time1;
        private JLabel time2;
        private JLabel time3;
        private JLabel name1;
        private JLabel name2;
        private JLabel name3;
        private JButton jbutton1;
        private JButton jbutton2;
        private MainFrame mainframe;
        private JPanel jpanel;
        
        public Hero(MainFrame mainframe) {
            this.mainframe=mainframe;
            this.setIconImage(Tools.getImageIcon().getImage());
            this.setTitle("初级英雄榜");
            this.setVisible(true);
            this.setSize(220,220);
            this.setResizable(false);
            this.setLocationRelativeTo(mainframe);
            this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
            init();
        }
        public JLabel getJLabel1() {
            return jlabel1;
        }
        public void setJLabel1(JLabel jlabel1) {
            this.jlabel1 = jlabel1;
        }
        public JLabel getJLabel2() {
            return jlabel2;
        }
        public void setJLabel2(JLabel jlabel2) {
            this.jlabel2 = jlabel2;
        }
        public JLabel getJLabel3() {
            return jlabel3;
        }
        public void setJLabel3(JLabel jlabel3) {
            this.jlabel3 = jlabel3;
        }
        public JLabel getJLabel4() {
            return jlabel4;
        }
        public void setJLabel4(JLabel jlabel4) {
            this.jlabel4 = jlabel4;
        }
        public JLabel getJLabel5() {
            return jlabel5;
        }
        public void setJLabel5(JLabel jlabel5) {
            this.jlabel5 = jlabel5;
        }
        public JLabel getJLabel6() {
            return jlabel6;
        }
        public void setJLabel6(JLabel jlabel6) {
            this.jlabel6 = jlabel6;
        }
        public JLabel getTime1() {
            return time1;
        }
        public void setTime1(JLabel time1) {
            this.time1 = time1;
        }
        public JLabel getTime2() {
            return time2;
        }
        public void setTime2(JLabel time2) {
            this.time2 = time2;
        }
        public JLabel getTime3() {
            return time3;
        }
        public void setTime3(JLabel time3) {
            this.time3 = time3;
        }
        public JLabel getName1() {
            return name1;
        }
        public void setName1(JLabel name1) {
            this.name1 = name1;
        }
        public JLabel getName2() {
            return name2;
        }
        public void setName2(JLabel name2) {
            this.name2 = name2;
        }
        public JLabel getName3() {
            return name3;
        }
        public void setName3(JLabel name3) {
            this.name3 = name3;
        }
        public void init(){
            HeroListener heroListener = new HeroListener();
            jlabel1 = new JLabel(" 名次");
            jlabel2 = new JLabel(" 成绩");
            jlabel3 = new JLabel(" 玩家");
            jlabel4 = new JLabel(" 第一名：");
            jlabel5 = new JLabel(" 第二名：");
            jlabel6 = new JLabel(" 第三名：");
            time1 = new JLabel(""+Tools.time1);
            time2 = new JLabel(""+Tools.time2);
            time3 = new JLabel(""+Tools.time3);
            name1 = new JLabel(" "+Tools.name1);
            name2 = new JLabel(" "+Tools.name2);
            name3 = new JLabel(" "+Tools.name3);
            jbutton1=new JButton("确定");
            jbutton1.addActionListener(heroListener);
            jbutton2=new JButton("重新设置");
            jbutton2.addActionListener(heroListener);
            jpanel=new JPanel();
            Box box1 = Box.createVerticalBox();
            box1.add(jlabel1);
            box1.add(Box.createVerticalStrut(10));
            box1.add(jlabel4);
            box1.add(Box.createVerticalStrut(10));
            box1.add(jlabel5);
            box1.add(Box.createVerticalStrut(10));
            box1.add(jlabel6);
            Box box2 = Box.createVerticalBox();
            box2.add(jlabel2);
            box2.add(Box.createVerticalStrut(10));
            box2.add(time1);
            box2.add(Box.createVerticalStrut(10));
            box2.add(time2);
            box2.add(Box.createVerticalStrut(10));
            box2.add(time3);
            Box box3 = Box.createVerticalBox();
            box3.add(jlabel3);
            box3.add(Box.createVerticalStrut(10));
            box3.add(name1);
            box3.add(Box.createVerticalStrut(10));
            box3.add(name2);
            box3.add(Box.createVerticalStrut(10));
            box3.add(name3);
            Box box4 = Box.createHorizontalBox();
            box4.add(jbutton1);
            box4.add(Box.createHorizontalStrut(20));
            box4.add(jbutton2);
            Box box5 = Box.createHorizontalBox();
            box5.add(box1);
            box5.add(box2);
            box5.add(box3);
            Box box6 = Box.createVerticalBox();
            box6.add(Box.createVerticalStrut(20));
            box6.add(box5);
            box6.add(Box.createVerticalStrut(20));
            box6.add(box4);
            jpanel.add(box6);
            this.add(jpanel);
        }
        class HeroListener implements ActionListener{
            public void actionPerformed(ActionEvent e){
                String command = e.getActionCommand();
                if(command.equals("确定")){
                    dispose();
                }
                else {
                    Tools.time1 = 999;
                    Tools.time2 = 999;
                    Tools.time3 = 999;
                    Tools.name1 = " 匿名";
                    Tools.name2 = " 匿名";
                    Tools.name3 = " 匿名";            
                    time1.setText(""+Tools.time1);
                    name1.setText(Tools.name1);                
                    time2.setText(""+Tools.time2);
                    name2.setText(Tools.name2);            
                    time3.setText(""+Tools.time3);
                    name3.setText(Tools.name3);
                    //dispose();
                }
            }
        }
    }

运行效果：

帮助菜单

关于扫雷（com.dialog/About.java）

可以根据自己的需求添加想要的窗口内容。

public class About extends JDialog {
    
    MainFrame mainframe;
    
    public About(MainFrame mainframe){
        this.setIconImage(Tools.getImageIcon().getImage());
        this.mainframe = mainframe;
        this.setTitle("关于扫雷");
        this.setLocationRelativeTo(null);
        this.setResizable(false);
        this.setSize(200, 130);
        this.init();
        this.setVisible(true);
    }
    private void init() {
        Box box = Box.createVerticalBox();
        JPanel jpanel = new JPanel();
        JLabel jlabel = new JLabel("扫雷 ©2022");
        JLabel jlabel1 = new JLabel("作者：XG.孤梦");
        JLabel jlabel2 = new JLabel("我的博客：https://www.xggm.top");
        box.add(jlabel);
        box.add(Box.createVerticalStrut(10));
        box.add(jlabel1);
        box.add(Box.createVerticalStrut(10));
        box.add(jlabel2);

        jpanel.add(box);
        this.add(jpanel);
    }
    
}

运行效果：

外挂后门（com.listener/MenuListener.java）

可以在布雷完成之后就编写这个方法，目的为了方便测试，节省时间，点击外挂，就会将是雷的小方格图片替换成其他图片，比如弄成中间有个小黑点的小方格

// 后门外挂方便测试
        menuItemHole.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                if (Tools.isStart) {
                    Tools.isHole = true;
                    // 判断每一个雷块是否是雷
                    for (MineLabel[] mineLabel : BombJMenuBar.this.mainframe
                            .getBombJPanel().getLabels()) {
                        for (MineLabel m : mineLabel) {
                            if (m.isMineTag()) {
                                m.setIcon(Tools.hole);
                            }
                        }
                    }
                }
            }
        });

运行效果：

最后一个Java实现扫雷项目就这样完成了。