帮我调这段程序，高分谢

Question

save.addActionListener(new  ActionListener()
    {int result=jf1.showSaveDialog(jf);
 if(result==JFileChooser.APPROVE_OPTION)
改为：
   save.addActionListener(new  ActionListener()
   {
    public void actionPerformed(ActionEvent e) {
    int result=jf1.showSaveDialog(jf);
 if(result==JFileChooser.APPROVE_OPTION)后面再加一个 }

Answer 1

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;public class JNote1
{
    JFrame jf = new JFrame("JMenuItem1");
    JTextArea theArea = null;
    JFileChooser jf1 = new JFileChooser("D:\\");    public JNote1()
    {
        theArea = new JTextArea();
        theArea.setEditable(true);
        jf.getContentPane().add(new JScrollPane(theArea));
        JMenuBar MBar = new JMenuBar();
        MBar.setOpaque(true);
        JMenu mfile = buildFileMenu();
        JMenu medit = buildEditMenu();
        JMenu mstyle = buildStyleMenu();
        JMenu mhelp = buildHelpMenu();
        MBar.add(mfile);
        MBar.add(medit);
        MBar.add(mstyle);
        MBar.add(mhelp);
        jf.setJMenuBar(MBar);
        jf.setSize(400, 200);
        jf.pack();
        jf.setVisible(true);
        jf.addWindowListener(new WindowAdapter()
        {
            public void windowClosing(WindowEvent e)
            {
                System.exit(0);
            }
        });
    }    public JMenu buildFileMenu()
    {        JMenu thefile = new JMenu("File");
        JMenuItem newf = new JMenuItem("New", 'N');
        JMenuItem open = new JMenuItem("Open", 'O');
        JMenuItem save = new JMenuItem("Save", 'S');
        JMenuItem saveas = new JMenuItem("Save As", 'A');
        JMenuItem print = new JMenuItem("Print", 'P');
        JMenuItem close = new JMenuItem("Close", 'C');
        JMenuItem exit = new JMenuItem("Exit", 'X');        newf.setAccelerator(KeyStroke.getKeyStroke('N',
            java.awt.Event.CTRL_MASK, false));
        open.setAccelerator(KeyStroke.getKeyStroke('O',
            java.awt.Event.CTRL_MASK, false));
        save.setAccelerator(KeyStroke.getKeyStroke('S',
            java.awt.Event.CTRL_MASK, false));
        saveas.setAccelerator(KeyStroke.getKeyStroke('A',
            java.awt.Event.CTRL_MASK, false));
        print.setAccelerator(KeyStroke.getKeyStroke('P',
            java.awt.Event.CTRL_MASK, false));
        close.setAccelerator(KeyStroke.getKeyStroke('C',
            java.awt.Event.CTRL_MASK, false));
        exit.setAccelerator(KeyStroke.getKeyStroke('X',
            java.awt.Event.CTRL_MASK, false));        open.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                File file=null;
                jf1.setApproveButtonText("确定");
                jf1.setDialogTitle("DD");
                int result = jf1.showOpenDialog(jf);
                if (result == JFileChooser.APPROVE_OPTION)
                {
                    file = jf1.getSelectedFile();
                }
                FileInputStream fileInput = null;
                if (file != null)
                {
                    try
                    {
                        fileInput = new FileInputStream(file);
                    }
                    catch (FileNotFoundException e2)
                    {
                        System.out.println("File not found");
                    }
                    int data;
                    try
                    {
                        while ( (data = fileInput.read()) != -1)
                        {
                            theArea.append(String.valueOf( (char) data));
                        }
                    }
                    catch (IOException e2)
                    {
                        System.out.println("IO error");
                    }
                    finally
                    {
                        try
                        {
                            if (fileInput != null)
                            {
                                fileInput.close();
                            }
                        }
                        catch (IOException e1)
                        {}                    }
                }
            }
        });        save.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                File file=null;
                int result = jf1.showSaveDialog(jf);
                if (result == JFileChooser.APPROVE_OPTION)
                { //File file=null;
                    file = jf1.getSelectedFile();
                }
                //FileOutputStream fileOutput;
                if (file != null)
                {
                    FileOutputStream fileOutput=null;
                    try
                    {
                        fileOutput  = new FileOutputStream(file);
                    }
                    catch (FileNotFoundException ex)
                    {
                        System.out.println("File not found");
                    }
                    String str="";
                    try
                    {
                        fileOutput.write(str.getBytes());
                    }
                    catch (IOException ex)
                    {
                        System.out.println("IO error");
                    }
                    finally
                    {
                        try
                        {
                            if (fileOutput != null)
                            {
                                fileOutput.close();
                            }
                        }
                        catch (IOException ex)
                        {}
                    }
                }
            }
        });        // exit.addActionListener(new  ActionListener()
        // {System.exit(0);});        thefile.add(newf);
        thefile.add(open);
        thefile.add(save);
        thefile.add(saveas);
        thefile.add(print);
        thefile.addSeparator();
        thefile.add(close);
        thefile.add(exit);
        return thefile;
    }    public JMenu buildEditMenu()
    {
        JMenu theedit = new JMenu("Edit");
        JMenuItem cut = new JMenuItem("Cut", 'A');
        JMenuItem copy = new JMenuItem("Copy", 'C');
        JMenuItem paste = new JMenuItem("Paste", 'P');
        JMenuItem delete = new JMenuItem("Delete", 'D');
        JMenuItem selectall = new JMenuItem("SelectAll", 'A');
        cut.setAccelerator(KeyStroke.getKeyStroke('X', java.awt.Event.CTRL_MASK, false));
        copy.setAccelerator(KeyStroke.getKeyStroke('C',
            java.awt.Event.CTRL_MASK, false));
        paste.setAccelerator(KeyStroke.getKeyStroke('V',
            java.awt.Event.CTRL_MASK, false));
        delete.setAccelerator(KeyStroke.getKeyStroke('D',
            java.awt.Event.CTRL_MASK, false));
        selectall.setAccelerator(KeyStroke.getKeyStroke('A',
            java.awt.Event.CTRL_MASK, false));        theedit.add(cut);
        theedit.add(copy);
        theedit.add(paste);
        theedit.add(delete);
        theedit.add(selectall);
        return theedit;
    }    public JMenu buildStyleMenu()
    {
        JMenu thestyle = new JMenu("Style");
        JMenuItem font1 = new JMenuItem("Font", 'F');
        font1.setAccelerator(KeyStroke.getKeyStroke('F',
            java.awt.Event.CTRL_MASK, false));        thestyle.add(font1);
        return thestyle;
    }    public JMenu buildHelpMenu()
    {
        JMenu thehelp = new JMenu("Help");
        JMenuItem help = new JMenuItem("Help", 'H');
        help.setAccelerator(KeyStroke.getKeyStroke('H',
            java.awt.Event.CTRL_MASK, false));        thehelp.add(help);
        return thehelp;
    }    public static void main(String[] args)
    {
        new JNote1();
    }
}