A small Java Problem for java Experts

Question

Hi Guys...
I have a small problem with my program...
Tha program I am using consist of several frames where one invokes the other in row.
These are the classes I am using:
the FIRST class://THIS CLASS IS NOT COMPLETE
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
* LabelDemo.java is a 1.4 application that needs one other file:
* images/middle.gif
public class CSVloader extends JPanel implements ActionListener {
     ImageIcon icon ;
     JLabel label;
JButton theButton1;
JButton saveButton;
JButton displayButton;
JButton displayStyleButton;
JFileChooser fc;
final boolean shouldFill = true;
final boolean shouldWeightX = true;
public CSVloader() {
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
setLayout(gridbag);
if (shouldFill) {
//natural height, maximum width
c.fill = GridBagConstraints.HORIZONTAL;
theButton1 = new JButton("Choose source File");
theButton1.addActionListener(this);
if (shouldWeightX) {
c.weightx = 0.5;
c.gridx = 0;
c.gridy = 0;
gridbag.setConstraints(theButton1, c);
add(theButton1);
displayStyleButton = new JButton("CSV Display style");
displayStyleButton.addActionListener(this);
c.gridx = 0;
c.gridy = 2;
gridbag.setConstraints(displayStyleButton, c);
add(displayStyleButton);
displayButton = new JButton("Display");
displayButton.addActionListener(this);
c.gridx = 1;
c.gridy = 0;
gridbag.setConstraints(displayButton, c);
add(displayButton);
saveButton = new JButton("Save");
saveButton.addActionListener(this);
c.gridx = 0;
c.gridy = 1;
gridbag.setConstraints(saveButton, c);
add(saveButton);
icon = new ImageIcon("c:/applets/CSVlogo.gif");
//Create the first label.
label = new JLabel(icon);
c.ipady = 45; //make this component tall
c.weightx = 0.0;
c.gridwidth = 1;
c.gridx = 1;
c.gridy = 1;
gridbag.setConstraints(label, c);
add(label);
fc = new JFileChooser();
public Dimension getDimension(int hight, int width) {
Dimension theDimension = new Dimension(hight,width);
return theDimension;
public void actionPerformed(ActionEvent e) {
//Handle open button action.
if (e.getSource() == theButton1) {
int returnVal = fc.showOpenDialog(CSVloader.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
//This is where a real application would open the file.
//Handle save button action.
} else
if (e.getSource() == displayButton) {
     try {
Runtime.getRuntime().exec("cmd /c start " + "c:\\applets\\displayData.html");
catch(IOException io)
System.err.println("Caught IOException: " +
     io.getMessage());
}else
if (e.getSource() == displayStyleButton)
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("Display Style");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
DisplayStyle newContentPane = new DisplayStyle();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
else
if (e.getSource() == saveButton) {
     int returnVal = fc.showOpenDialog(CSVloader.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File saveFile = fc.getSelectedFile();
//This is where a real application would open the file.
public static void main(String[] args) {
//Make sure we have nice window decorations.
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("LabelDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
CSVloader newContentPane = new CSVloader();
newContentPane.setBackground(Color.WHITE);
newContentPane.setOpaque(true);
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
// Runtime.getRuntime().exec("cmd /c start " + "....\\docs\\index.html");
this is the SECOND class:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class DisplayStyle extends JPanel implements ActionListener{
     public static final int FIRST_OPTION = 0;
     public static final int SECOND_OPTION = 1;
     public static final int THIRD_OPTION = 2;
     public static final int THE_BUTTON_OPTION =3;
public static final int ERROR = -1;
     public int selectedOption = ERROR;
     static String table = "Table";
     static String tableNoBorders = "Table without Borders";
     static String highlightedTable = "Highlighted Table without Borders";
     public JRadioButton theTable;
     public JRadioButton theTable2;
     public JRadioButton theTable3;
     public JButton theButton;
     public String theName;
     public DisplayStyle ()
     theTable = new JRadioButton(table);
     theTable.setActionCommand(""+ FIRST_OPTION);
     theTable.addActionListener(this);
     theTable.setMnemonic(KeyEvent.VK_B);     
theTable.setSelected(true);
theTable2 = new JRadioButton(tableNoBorders);
theTable2.setActionCommand(""+ SECOND_OPTION);
     theTable2.addActionListener(this);
     theTable2.setMnemonic(KeyEvent.VK_B);     
theTable3 = new JRadioButton(highlightedTable);
theTable3.setActionCommand(""+ THIRD_OPTION);
     theTable3.addActionListener(this);
     theTable3.setMnemonic(KeyEvent.VK_B);     
theButton = new JButton("OK");
theButton.setActionCommand(""+ THE_BUTTON_OPTION);
theButton.addActionListener(this);
     ButtonGroup group = new ButtonGroup();
group.add(theTable);
group.add(theTable2);
group.add(theTable3);
JLabel theLabel = new JLabel("Choose the style of Display");
JPanel radioPanel = new JPanel(new GridLayout(0, 1));
radioPanel.add(theLabel);
radioPanel.add(theTable);
radioPanel.add(theTable2);
radioPanel.add(theTable3);
radioPanel.add(theButton);
add(radioPanel, BorderLayout.LINE_START);
     public void actionPerformed (ActionEvent e) {
     if(e.getSource() == theButton)
     JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame1 = new JFrame("The Format");
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Formats newFormat = new Formats();
newFormat.setOpaque(true); //content panes must be opaque
frame1.setContentPane(newFormat);
//Display the window.
frame1.pack();
frame1.setVisible(true);
     selectedOption = Integer.parseInt(e.getActionCommand().trim());
     public DisplayStyle getInstance(){
          return this;      
this is the THIRD class:
mport java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Formats extends JPanel implements ActionListener{
     public static final int FIRST_OPTION = 0;
     public static final int SECOND_OPTION = 1;
     public static final int THIRD_OPTION = 2;
     public static final int FOURTH_OPTION = 4;
     public static final int THE_BUTTON_OPTION =3;
public static final int ERROR = -1;
     public int selectedOption = ERROR;
     static String standardFormat = "Date first";
     static String timeFirstFormat = "Time First";
     static String typeFirstFormat = "Type of call first";
     static String extFirstFormat = "Extension first";
     public JButton theButton;
     public JRadioButton theStandardButton1 ;
     public JRadioButton theTimeButton;
     public JRadioButton theTypeButton;
     public JRadioButton theExtButton ;
     public Formats()
theStandardButton1 = new JRadioButton(standardFormat);
     theStandardButton1.setMnemonic(KeyEvent.VK_B);     
theStandardButton1.setSelected(true);
     theTimeButton = new JRadioButton(timeFirstFormat);
     theTimeButton.setMnemonic(KeyEvent.VK_B);     
theTypeButton = new JRadioButton(typeFirstFormat);
     theTypeButton .setMnemonic(KeyEvent.VK_B);     
theExtButton = new JRadioButton(extFirstFormat);
     theExtButton.setMnemonic(KeyEvent.VK_B);     
     ButtonGroup group = new ButtonGroup();
group.add(theStandardButton1);
group.add(theTimeButton);
group.add(theTypeButton);
group.add(theExtButton);
JLabel newLabel = new JLabel("Choose the Format type for the data to be displayed");
theButton = new JButton("OK");
theButton.addActionListener(this);
theButton.setActionCommand("" + THE_BUTTON_OPTION);
JPanel radioPanel = new JPanel(new GridLayout(0, 1));
radioPanel.add(newLabel);
radioPanel.add(theStandardButton1);
radioPanel.add(theTimeButton);
radioPanel.add(theTypeButton);
radioPanel.add(theExtButton);
radioPanel.add(theButton);
add(radioPanel, BorderLayout.LINE_START);      
     public void actionPerformed (ActionEvent e) {
     if(e.getSource() == theButton)
     JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("The Font");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
TableFonts newFont = new TableFonts();
newFont.setOpaque(true); //content panes must be opaque
frame.setContentPane(newFont);
//Display the window.
frame.pack();
frame.setVisible(true);
     selectedOption = Integer.parseInt(e.getActionCommand().trim());
     public Formats getInstance(){
          return this;      
and the last class:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TableFonts extends JPanel implements ActionListener{
     static String standardFont = "Standard Font";
     static String boldFont = "Bold Font";
     static String italicFont = "Italic Font";
     static String monospaceFont = "Monospace Font";
     public      JRadioButton theStandardButton ;
     public JRadioButton theBoldButton;
     public JRadioButton theItalicButton;
     public JRadioButton theMonospaceButton ;
     public TableFonts()
theStandardButton = new JRadioButton(standardFont);
     theStandardButton.setMnemonic(KeyEvent.VK_B);     
theStandardButton.setSelected(true);
     theBoldButton = new JRadioButton(boldFont);
     theBoldButton.setMnemonic(KeyEvent.VK_B);     
theItalicButton = new JRadioButton(italicFont);
     theItalicButton .setMnemonic(KeyEvent.VK_B);     
theMonospaceButton = new JRadioButton(monospaceFont);
     theMonospaceButton.setMnemonic(KeyEvent.VK_B);     
     ButtonGroup group = new ButtonGroup();
group.add(theStandardButton);
group.add(theBoldButton);
group.add(theItalicButton);
group.add(theMonospaceButton);
theStandardButton.addActionListener(this);
theBoldButton.addActionListener(this);
theItalicButton.addActionListener(this);
theMonospaceButton.addActionListener(this);
JLabel newLabel = new JLabel("Choose the correct font for the data to be displayed");
JPanel radioPanel = new JPanel(new GridLayout(0, 1));
radioPanel.add(newLabel);
radioPanel.add(theStandardButton);
radioPanel.add(theBoldButton);
radioPanel.add(theItalicButton);
radioPanel.add(theMonospaceButton);
add(radioPanel, BorderLayout.LINE_START);
     public void actionPerformed(ActionEvent e) {
The problem I am getting is the Number format exception when the OK button of the class Formats is clicked...
here is the error I am getting:
java.lang.NumberFormatException: For input string: "OK"
at java.lang.NumberFormatException.forInputString(NumberFormatException.
java:48)
at java.lang.Integer.parseInt(Integer.java:426)
at java.lang.Integer.parseInt(Integer.java:476)
at Formats.actionPerformed(Formats.java:80)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:17
64)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Abstra
ctButton.java:1817)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel
.java:419)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonL
istener.java:245)
at java.awt.Component.processMouseEvent(Component.java:5134)
at java.awt.Component.processEvent(Component.java:4931)
at java.awt.Container.processEvent(Container.java:1566)
at java.awt.Component.dispatchEventImpl(Component.java:3639)
at java.awt.Container.dispatchEventImpl(Container.java:1623)
at java.awt.Component.dispatchEvent(Component.java:3480)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3165)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
at java.awt.Container.dispatchEventImpl(Container.java:1609)
at java.awt.Window.dispatchEventImpl(Window.java:1590)
at java.awt.Component.dispatchEvent(Component.java:3480)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:197)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
COULD YOU GUYS PLEASE TELL ME HOW TO GET AROUND THIS PROBLEM:
THANKS...

Answer 1

It's in this line:
selectedOption = Integer.parseInt(e.getActionCommand().trim());
Kind regards,
  Levi
PS. have you noticed the [code][code[i]] tags?