cry*_*one 0 java swing compiler-errors
我有一个抽奖活动程序,曾经有很多命令和组件等.但我想通过省略许多命令或组件,如按钮或标签,使它更简单.当我试图这样做时,出现错误(42个错误),所有这些都说:
error: class, interface or enum expected.
有人可以帮我追踪这些错误吗?
顺便说一句,这是我的代码(更新):
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.sql.*;
public class Case extends JFrame implements ActionListener
{
    static Case app=new Case();
    JDesktopPane desk=new JDesktopPane();
    Connection cn=null;
    ResultSet rs=null;
    Statement stat=null;
    JInternalFrame log=new JInternalFrame("WELCOME!", true,true,true,true);
    JInternalFrame game=new JInternalFrame("Hi! Welcome to RAFFLE DRAW by BSIT22C");
    int arr[]=new int[10];
    int range=0;
    JTextField gametext=new JTextField("",2);
    JTextField txtuser=new JTextField("",20);
    JMenuBar gamebar=new JMenuBar();
    JMenu mnuf=new JMenu("File");
    JMenuItem fnew=new JMenuItem("New Game");
    JMenuItem fquit=new JMenuItem("Quit Game");
    JMenuItem flogout=new JMenuItem("Logout");
    JPanel pnllog=new JPanel();
    JPanel pnlgame=new JPanel();
    JButton blog=new JButton("Login");
    JButton bcan=new JButton("Cancel");
    JButton bgen=new JButton("Generate Number Set");
    JButton bsubmit=new JButton("Submit Number");
    JCheckBox[] ck=new JCheckBox[10];
    JLabel lblives=new JLabel("");
    JLabel lbcons=new JLabel("");
    int life=5;
    int userscore=0;
    int cons=0;
    public void init()
    {
        setContentPane(desk);
        desk.add(log);
        desk.add(game);
        game.setVisible(false);
        game.setSize(800,600);
        game.setContentPane(pnlgame);
        setJMenuBar(gamebar);
        gamebar.add(mnuf);
        mnuf.add(fnew);
        mnuf.add(fscore);
        mnuf.add(flogout);
        mnuf.add(fquit);
        for(int ctr=0;ctr<10;ctr++)
        {
            ck[ctr]=new JCheckBox();
        }
        for(int ctr2=0; ctr2<10; ctr2++)
        {
            pnlgame.add(ck[ctr2]);
        }
        ck[0].setEnabled(false);
        ck[1].setEnabled(false);
        ck[2].setEnabled(false);
        ck[3].setEnabled(false);
        ck[4].setEnabled(false);
        ck[5].setEnabled(false);
        ck[6].setEnabled(false);
        ck[7].setEnabled(false);
        ck[8].setEnabled(false);
        ck[9].setEnabled(false);
        game.setSize(750,100);
        pnlgame.add(gametext);
        pnlgame.add(bsubmit);
        pnlgame.add(bgen);
        pnlgame.add(bup);
        pnlgame.add(lbtimer);
        pnlgame.add(lbtest);
        pnlgame.add(lbscore);
        pnlgame.add(lbachieve);
        pnlgame.add(lblives);
        pnlgame.add(lbcons);
        lbachieve.setText("Bonus");
        bgen.addActionListener(this);
        bsubmit.addActionListener(this);
        setJMenuBar(gamebar);
        gamebar.add(mnuf);
        mnuf.add(fnew);
        mnuf.add(fscore);
        mnuf.add(flogout);
        mnuf.add(fquit);
        log.setVisible(true);
        log.setSize(300,100);
        log.setContentPane(pnllog);
        pnllog.setLayout(new GridLayout(2,2));
        pnllog.add(blog);
        pnllog.add(bcan);
        setJMenuBar(gamebar);
        gamebar.add(mnuf);
        mnuf.add(fnew);
        mnuf.add(fscore);
        mnuf.add(flogout);
        mnuf.add(fquit);
        fnew.setEnabled(false);
        blog.addActionListener(this);
        bcan.addActionListener(this);
        fnew.addActionListener(this);
        fquit.addActionListener(this);
        flogout.addActionListener(this);
        app.setSize(1024,800);
        app.setVisible(true);
    }
    public void actionPerformed(ActionEvent ex)
    {
        Object[] options={"Easy", "Normal", "Hard"};
        if(ex.getSource()==fnew)
        {
            bsubmit.setEnabled(false);
            gametext.setEditable(false);
            int option2=JOptionPane.showOptionDialog(null,"Choose difficulty", "New Game",JOptionPane.DEFAULT_OPTION, JOptionPane.PLAIN_MESSAGE, null, options, options[1]);
            if(option2==0)
            {
                for(int ctrck=0; ctrck<10; ctrck++)
                {
                    ck[ctrck].setSelected(false);
                }
                lbtest.setText("");
                gametext.setText("");
                lbachieve.setText("");
                lblives.setText("");
                lbcons.setText("");
                lbscore.setText("");
                life=5;
                userscore=0;
                bgen.setEnabled(true);
                cons=0;
                log.setVisible(false);
                game.setVisible(true);
                range=10;
            }
            else if(option2==1)
            {
                for(int ctre=0; ctre<10; ctre++)
                {
                    ck[ctre].setSelected(false);
                }
                lbtest.setText("");
                gametext.setText("");
                lbscore.setText("");
                lbachieve.setText("");
                lblives.setText("");
                lbcons.setText("");
                life=5;
                userscore=0;
                bgen.setEnabled(true);
                cons=0;
                log.setVisible(false);
                game.setVisible(true);
                range=20;
            }
            else if(option2==2)
            {
                for(int ctrn=0; ctrn<10; ctrn++)
                {
                    ck[ctrn].setSelected(false);
                }
                lbtest.setText("");
                gametext.setText("");
                lbachieve.setText("");
                lblives.setText("");
                lbcons.setText("");
                lbscore.setText("");
                life=5;
                userscore=0;
                bgen.setEnabled(true);
                cons=0;
                log.setVisible(false);
                game.setVisible(true);
                range=40;
            }
    }
    else if(ex.getSource()==fscore)
    {
        {
            int hsconf=JOptionPane.showConfirmDialog(null,"Do you want to view the current score rankings?","Please Confirm",JOptionPane.YES_NO_OPTION);
            if(hsconf==0)
            {
                log.setVisible(false);
                game.setVisible(false);
            }
            else
            {
            }
        }   
        log.setVisible(false);
        game.setVisible(false);
    }
    else if(ex.getSource()==flogout)
    {
        int option = JOptionPane.showConfirmDialog(null,"Do you really want to quit playing?", "Do you want to exit?",JOptionPane.YES_NO_OPTION);
        if(option==0)
        {
            for(int q=0; q<10; q++)
            {
                ck[q].setSelected(false);
            }
            lbtest.setText("");
            lbachieve.setText("");
            lblives.setText("");
            lbcons.setText("");
            lbscore.setText("");
            life=5;
            userscore=0;
            cons=0;
            bgen.setEnabled(true);
        }
        else
        {
            log.setVisible(true);
        }
        for(int e=0; e<10; e++)
        {
            ck[e].setSelected(false);
        }
        lbtest.setText("");
        lbachieve.setText("");
        lblives.setText("");
        lbcons.setText("");
        life=5;
        userscore=0;
        cons=0;
        bgen.setEnabled(true);
        log.setVisible(true);
        game.setVisible(false);
    }
    else if(ex.getSource()==fquit)
    {
        int option = JOptionPane.showConfirmDialog(null,"Do you really want to quit playing?", "Do you want to exit?",JOptionPane.YES_NO_OPTION);
        if(option==0)
        {
            for(int r=0; r<10; r++)
            {
                ck[r].setSelected(false);
            }
            lbtest.setText("");
            lbachieve.setText("");
            lblives.setText("");
            lbcons.setText("");
            life=5;
            userscore=0;
            cons=0;
            bgen.setEnabled(true);
            System.exit(0);
        }
        else
        {
            log.setVisible(true);
        }
    }
    else if(ex.getSource()==bcan)
    {
        int option = JOptionPane.showConfirmDialog(null,"Do you really want to quit playing?", "Do you want to exit?",JOptionPane.YES_NO_OPTION);
        if(option==0)
        {
            System.exit(0);
        }
        else
        {
            log.setVisible(true);
        }
    }
    else if(ex.getSource()==bgen)
    {
        bsubmit.setEnabled(true);
        gametext.setEditable(true);
        app.generate();
    }
    else if(ex.getSource()==bsubmit)
    {
    try
        {
            app.cmpans();
            if(ck[0].isSelected()&&ck[1].isSelected()&&ck[2].isSelected()&&ck[3].isSelected()&&ck[4].isSelected()&&ck[5].isSelected()&&ck[6].isSelected()&&ck[7].isSelected()&&ck[8].isSelected()&&ck[9].isSelected()==true)
            {
                int win = JOptionPane.showConfirmDialog(null,"Do you want to go for another round?","Congratulations! You WIN!",JOptionPane.YES_NO_OPTION);
                if(win==0)
                {
                    for(int r=0; r<10; r++)
                    {
                        ck[r].setSelected(false);
                    }
                    lbtest.setText("");
                    life=5;
                    userscore=0;
                    gametext.setText("");
                    lbscore.setText("");
                    lblives.setText("");
                    lbcons.setText("");
                    cons=0;
                    bgen.setEnabled(true);
                    log.setVisible(false);
                    game.setVisible(true);
                }
                else if(win==1)
                {
                    log.setVisible(false);
                    game.setVisible(false);
                }
            }
            else if(life<=0)
            {
                int gameover=JOptionPane.showConfirmDialog(null,"Sorry, you lost!","GAME OVER!",JOptionPane.OK_OPTION);
                if(gameover==0)
                {
                    game.setVisible(false);
                    log.setVisible(false);
                }
                else if(gameover==1)
                {
                    gametext.setText("");
                    lbscore.setText("");
                    lblives.setText("");
                    lbcons.setText("");
                    lbtest.setText("");
                    lbscore.setText("");
                    bgen.setEnabled(false);
                    bsubmit.setEnabled(false);
                    game.setVisible(false);
                    log.setVisible(false);
                }
            }       
        }catch(Exception ebak){}
    }   
    else if(ex.getSource()==blog)
    {   
        fnew.setEnabled(false);
        bsubmit.setEnabled(false);
        gametext.setEditable(false);
        Object[] options1={"Easy", "Normal", "Hard"};
        log.setVisible(false);
        fnew.setEnabled(true);
        int option3=JOptionPane.showOptionDialog(null,"Choose difficulty", "New Game",JOptionPane.DEFAULT_OPTION, JOptionPane.PLAIN_MESSAGE, null, options1, options1[1]);
        if(option3==0)
        {
            for(int ctrck2=0; ctrck2<10; ctrck2++)
            {
                ck[ctrck2].setSelected(false);
            }
            lbtest.setText("");
            gametext.setText("");
            lbachieve.setText("");
            lblives.setText("");
            lbcons.setText("");
            lbscore.setText("");
            life=5;
            userscore=0;
            bgen.setEnabled(true);
            cons=0;
            log.setVisible(false);
            game.setVisible(true);
            range=10;
        }
        else if(option3==1)
        {
            for(int ctre=0; ctre<10; ctre++)
            {
                ck[ctre].setSelected(false);
            }
            lbtest.setText("");
            gametext.setText("");
            lbscore.setText("");
            lbachieve.setText("");
            lblives.setText("");
            lbcons.setText("");
            life=5;
            userscore=0;
            bgen.setEnabled(true);
            cons=0;
            log.setVisible(false);
            game.setVisible(true);
            range=20;
        }
        else if(option3==2)
        {
            for(int ctrn=0; ctrn<10; ctrn++)
            {
                ck[ctrn].setSelected(false);
            }
            lbtest.setText("");
            gametext.setText("");
            lbachieve.setText("");
            lblives.setText("");
            lbcons.setText("");
            lbscore.setText("");
            life=5;
            userscore=0;
            bgen.setEnabled(true);
            cons=0;
            log.setVisible(false);
            game.setVisible(true);
            range=40;
        }
    }
}
    public void generate()
    {
        for(int z=0; z<=1; z++)
        {
            for(int i=0; i<10; i++)
            {
                Random rdm=new Random();
                arr[i] = rdm.nextInt(range)+5;
            }
            lbtest.setText("Random Numbers: "+arr[0]+"-"+arr[1]+"-"+arr[2]+"-"+arr[3]+"-"+arr[4]+"-"+arr[5]+"-"+arr[6]+"-"+arr[7]+"-"+arr[8]+"-"+arr[9]);
            bgen.setEnabled(false);
            gametext.setText("");
        }
    }
    public void cmpans()
    {
        boolean success=false;
        boolean boo=false;
        String txget;
        txget=gametext.getText();
        String pars;
        int ans;
        pars=gametext.getText();
        ans=Integer.parseInt(pars);
        for(int i=0; i<10; i++)
        {
            if(ans==arr[i])
            {
                userscore=userscore+10;
                lbscore.setText("Score: "+userscore);
                ck[i].setSelected(true);
                arr[i]=0000;
                gametext.setText("");
                lblives.setText("life: "+life);
                lbcons.setText("cons: "+cons);
                success=true;
            }
            else
            {
                boo=true;
            }
        }
        gametext.setText("");
        if(success==true)
        {
            cons++;
            if(cons==2)
            {
                lbachieve.setText("You're a GOOD GUESSER!");
                userscore=userscore+20;
            }
            else if(cons==4)
            {
                lbachieve.setText("You're an AMAZING GUESSER!!");
                userscore=userscore+50;
            }
        }
        else if(boo==true)
        {
            cons=0;
            life--;
            lblives.setText("life: "+life);
            lbcons.setText("cons: "+cons);
        }
    }
}
    public static void main(String[] args)
    {
        app.init();
    }
}
我无法弄清楚这些行中的哪一行会产生错误.
问题是你在巨大的(300多行!)actionPerformed方法结束时有太多的关闭括号.这意味着您正在关闭类声明,从而导致后续错误.
为了避免将来出现这个问题:
option2)以及第382行(在声明的正下方)处不稳定options1.在其他地方也很奇怪.actionPerformed是维护噩梦.