Access Denied to windowClosing

Question

Hi,
I have written a Java application that runs perfectly well under windows XP
i then tried to compile it using javac at the command prompt on windows98 and got an access denied: windowClosing error.
Any ideas as to how to fix?
will provide more information if needed.
Many Thanks

Answer 1

and the code is:
import javax.swing.*;
import javax.swing.ImageIcon;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import java.util.ArrayList;
import java.io.*;
* Main GUI Window
* For TimeCost
* Created:
* Alex Kilgour
* 2004
public class gui extends JFrame implements ActionListener, HomeEventListener {
// INSTANCE VARIABLES
     JPanel buttonPanel = new JPanel();
     GridBagLayout gridbag = new GridBagLayout();
     GridBagConstraints c = new GridBagConstraints();
     JScrollPane main;
     String password;
     newRecords newrec;
     home homeoptions;
     createClientRecord createCR;
     createJobRecord createJR;
     enterFeeAccounts enterFA;
     enterSettlement enterS;
     enterTimesheet enterTS;
     enterDisbursement enterD;
     chargeTime chargeT;
     chargeDisbursements chargeD;
     staff staffFrame;
     changeExisting changeExist;
     amendTimeCost amend;
     Container cont;
     JButton ok, cancel, menu, exit, staff, print, amendTC, changePass;
     String currentView;
     String url = "jdbc:odbc:DRIVER=Microsoft Access Driver (*.mdb);DBQ=client.mdb;PWD=mypass";
     Connection con;
     Statement stmt;
public gui() {
     try {
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     } catch(java.lang.ClassNotFoundException e) {
          JOptionPane.showMessageDialog(this, "Database drivers not found!" + "\n" + "Details:" + "\n"+ e.getMessage(), "Warning", JOptionPane.WARNING_MESSAGE);
     setTitle("TimeCost - Time and Disbursement Control System"); // set the frame title
     setSize(850,550);
     setResizable(false);
     setVisible(true);
     setBackground(new Color(204,204,204));
     // create a OK Button
     ok = new JButton("OK");
     ok.setActionCommand("ok");
     ok.setEnabled(false);
     ok.setMnemonic(KeyEvent.VK_O); // Alt + O
     ok.setFont(new Font("null", Font.PLAIN, 14));     
     ok.setToolTipText("Confirm these actions and proceed");
     ok.addActionListener(this);
     // create a Cancel Button
     cancel = new JButton("Cancel");
     cancel.setActionCommand("cancel");
     cancel.setEnabled(false);
     cancel.setMnemonic(KeyEvent.VK_C); // Alt + C
     cancel.setFont(new Font("null", Font.PLAIN, 14));     
     cancel.setToolTipText("Cancel these actions and return to previous screen");
     cancel.addActionListener(this);
     // create a Main Menu Button
     menu = new JButton("Main Menu");
     menu.setActionCommand("menu");
     menu.setEnabled(false);
     menu.setMnemonic(KeyEvent.VK_M); // Alt + M
     menu.setFont(new Font("null", Font.PLAIN, 14));     
     menu.setToolTipText("Return to opening screen");
     menu.addActionListener(this);
     // create a Staff Button
     staff = new JButton("Staff");
     staff.setActionCommand("staff");
     staff.setEnabled(true);
     staff.setMnemonic(KeyEvent.VK_S); // Alt + S
     staff.setFont(new Font("null", Font.PLAIN, 14));     
     staff.setToolTipText("Setup the members of staff");
     staff.addActionListener(this);
     // create a Amend Button
     amendTC = new JButton("Amend Rates");
     amendTC.setActionCommand("amend");
     amendTC.setEnabled(true);
     amendTC.setMnemonic(KeyEvent.VK_A); // Alt + A
     amendTC.setFont(new Font("null", Font.PLAIN, 14));     
     amendTC.setToolTipText("Amend time and cost rates");
     amendTC.addActionListener(this);
     // create a Print Button
     print = new JButton("Print");
     print.setActionCommand("print");
     print.setEnabled(false);
     print.setMnemonic(KeyEvent.VK_P); // Alt + P
     print.setFont(new Font("null", Font.PLAIN, 14));     
     print.setToolTipText("Print the current generated information");
     print.addActionListener(this);
     // create a ChangePass Button
     changePass = new JButton("Password");
     changePass.setActionCommand("pass");
     changePass.setEnabled(true);
     changePass.setMnemonic(KeyEvent.VK_P); // Alt + P
     changePass.setFont(new Font("null", Font.PLAIN, 14));     
     changePass.setToolTipText("Change the password used to access some areas of the program");
     changePass.addActionListener(this);
     // create a Exit Button
     exit = new JButton("Exit TimeCost");
     exit.setActionCommand("exit");
     exit.setEnabled(true);
     exit.setMnemonic(KeyEvent.VK_E); // Alt + E
     exit.setFont(new Font("null", Font.PLAIN, 14));     
     exit.setToolTipText("Exit the timecost program");
     exit.addActionListener(this);
     buttonPanel.setLayout( new BoxLayout(buttonPanel, BoxLayout.X_AXIS) );
     buttonPanel.setBorder(BorderFactory.createEmptyBorder(15,0,15,0));     
     buttonPanel.setBackground(Color.LIGHT_GRAY);
     buttonPanel.add(Box.createHorizontalGlue());     
     buttonPanel.add(ok);
     buttonPanel.add(Box.createRigidArea(new Dimension(3,0)));
     buttonPanel.add(cancel);
     buttonPanel.add(Box.createRigidArea(new Dimension(3,0)));
     buttonPanel.add(print);
     buttonPanel.add(Box.createRigidArea(new Dimension(3,0)));
     buttonPanel.add(menu);
     buttonPanel.add(Box.createRigidArea(new Dimension(30,0)));     
     buttonPanel.add(staff);
     buttonPanel.add(Box.createRigidArea(new Dimension(3,0)));
     buttonPanel.add(amendTC);
     buttonPanel.add(Box.createRigidArea(new Dimension(3,0)));
     buttonPanel.add(changePass);
     buttonPanel.add(Box.createRigidArea(new Dimension(30,0)));
     buttonPanel.add(exit);     
     buttonPanel.add(Box.createHorizontalGlue());
     // create a JLabel that displays the ********* Logo
     ImageIcon icon = new ImageIcon("***.png", "****** Logo");
     JLabel label = new JLabel(icon);
     label.setBackground(new Color(204,204,204));
     label.setBorder(BorderFactory.createEmptyBorder(8,8,8,8));
     label.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
     label.setVerticalAlignment(javax.swing.SwingConstants.CENTER);
     label.setVisible(true);
     // create the Panels
     homeoptions = new home();
     newrec = new newRecords();
     createCR = new createClientRecord();
     createJR = new createJobRecord();
     enterFA = new enterFeeAccounts();
     enterS = new enterSettlement();
     enterTS = new enterTimesheet();
     enterD = new enterDisbursement();
     chargeT = new chargeTime();
     chargeD     = new chargeDisbursements();
     changeExist = new changeExisting();
     amend = new amendTimeCost();
     amend.setVisible(false);
     staffFrame = new staff();
     staffFrame.setVisible(false);
     // add Listeners
     homeoptions.addHomeListener(this);
     newrec.addHomeListener(this);
     createCR.addHomeListener(this);
     createJR.addHomeListener(this);
     enterFA.addHomeListener(this);
     enterS.addHomeListener(this);
     enterTS.addHomeListener(this);
     enterD.addHomeListener(this);
     chargeT.addHomeListener(this);
     chargeD.addHomeListener(this);
     changeExist.addHomeListener(this);
     // add the mainPane to a JScrollpane
     main = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
               JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
     main.setViewportView(homeoptions);
     main.setBackground(new Color(204,204,204));
     main.setBorder(BorderFactory.createEmptyBorder(8,8,8,8));
     // create a Container for the JFrame
     cont = getContentPane();
cont.setLayout(new BorderLayout());
cont.setBackground(new Color(204,204,204));
cont.add(label, BorderLayout.NORTH);
cont.add(main, BorderLayout.CENTER);
     cont.add(buttonPanel, BorderLayout.SOUTH);
     // get the password
     File file = new File("pw.ser");
     if(file.exists()){
          ObjectInput input = null;
     try{
          //use buffering
          InputStream filein = new FileInputStream( "pw.ser" );
          InputStream buffer = new BufferedInputStream( filein );
          input = new ObjectInputStream ( buffer );
          //deserialize the List
          password = (String)input.readObject();           
     } catch(IOException ex){
          JOptionPane.showMessageDialog(this, "Cannot perform setup operation."+"\n"+"Details:"+"\n"+ex.getMessage(), "Warning", JOptionPane.WARNING_MESSAGE);
     } catch (ClassNotFoundException ex){
          JOptionPane.showMessageDialog(this, "Unexpected class found upon input."+"\n"+"Details:"+"\n"+ex.getMessage(), "Warning", JOptionPane.WARNING_MESSAGE);
     } // end catch
     finally{
          try {
          if ( input != null ) {
               //close "input" and its underlying streams
               input.close();
          } // end if
          } catch (IOException ex){                  
          JOptionPane.showMessageDialog(this, "Cannot Close Input Stream."+"\n"+"Details:"+"\n"+ex.getMessage(), "Warning", JOptionPane.WARNING_MESSAGE);
          } // end catch
     } // end finally
     } else {
          password = "";                     
     // Add Window Listener to the JFrame
     addWindowListener(new WindowAdapter() {
     public void windowClosing(WindowEvent e) {
          int n = JOptionPane.showOptionDialog(null,
"Are you sure you wish to close the TimeCost program \n"+
"Any unconfirmed changes will not be saved \n"+
"Exit TimeCost?",
" Exit TimeCost",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE,
null, null, null);
if (n == JOptionPane.YES_OPTION) {
     System.exit(0);
} else if (n == JOptionPane.NO_OPTION) {
     return;
} // end window closing
     this.validate();
     this.setLocationRelativeTo( null ); // put in centre of screen     
} // end gui Constructor
// code removed
// Main Method
static public void main (String args[]) {
     try{
          UIManager.setLookAndFeel(
               "javax.swing.plaf.metal.MetalLookAndFeel");
     } catch (Exception e){}
     JFrame.setDefaultLookAndFeelDecorated(true);
     JDialog.setDefaultLookAndFeelDecorated(true);
gui frame = new gui();
frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);     
} // end main method
} // end of gui Class