Here's my code.

**********Main Application (ClassA)**********

/*
*
*/

import java.io.*;
import javax.swing.*;
import javax.swing.AbstractAction;
import javax.swing.Action;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;

import javax.swing.JToolBar;
import javax.swing.JButton;
import javax.swing.ImageIcon;

import javax.swing.JMenuItem;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JMenu;
import javax.swing.JMenuBar;

import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import java.util.*;

import java.awt.*;
import java.awt.event.*;

import java.beans.beancontext.*;
import java.beans.*;

public class GPVLite extends JPanel implements ActionListener {
   protected JFormattedTextField GPSTextField, VidTextField;
   protected JFileChooser fchooser = new JFileChooser();
   protected JTextArea textArea;
   protected String newline = "\n";
   static final private String GPSFILE = "gpsfile";
   static final private String VIDFILE = "vidfile";
   static final private String GPVFILE = "gpvfile";
   static final private String PLAY = "play";
   static final private String STOP = "stop";
   static final private String PAUSE = "pause";
   static final private String NEWPOINTS = "new points";
   static final private String LAYERS = "layers";
   protected File gpsFile;
   static public DataViewer myDataViewer = new DataViewer();
   static public GpvData gpvdata;
   static public GPVLite myGpvl = new GPVLite();

   public GPVLite(){
       super(new BorderLayout());

     //create the window panes
     JSplitPane mainPane;
     JPanel gpsPanel, dataPanel;
     gpsPanel = new JPanel();
     dataPanel = new JPanel();
     dataPanel.setLayout(new BorderLayout());

     //Create DataViewer and put it into dataPanel
     //DataViewer myDataViewer = new DataViewer();
     myDataViewer.makeGUI();
     dataPanel.add(myDataViewer, BorderLayout.PAGE_END);   
 
     mainPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, dataPanel,
gpsPanel);
     mainPane.setOneTouchExpandable(false);
     mainPane.setDividerSize(5);
     mainPane.setDividerLocation(400);

     //Set minimum size of tabbed panels so split will slide correctly
     //Dimension minSize = new Dimension (0,0);
     //trainingPanel.setMinimumSize(minSize);

     //Set reSize weight so panes size properly when changing frame size
     mainPane.setResizeWeight(0.5);

       //Lay out the content pane.
       add(mainPane, BorderLayout.CENTER);

   }

//--------------------Create
MenuBar------------------------------------------

   public JMenuBar createMenuBar() {
       JMenuItem menuItem = null;
       JMenuBar menuBar;

       //Create the menu bar.
       menuBar = new JMenuBar();

       //Create the main menus.
       JMenu filesMenu = new JMenu("Files");
       JMenu controlsMenu = new JMenu("Controls");
       JMenu pointsMenu = new JMenu("points");
       JMenu layersMenu = new JMenu("Layers");

       //Set up the menu bar.
       menuBar.add(filesMenu);
       menuBar.add(controlsMenu);
       menuBar.add(pointsMenu);
       menuBar.add(layersMenu);
       return menuBar;
   }

//--------------------End Create
MenuBar------------------------------------------

//--------------------Create
ToolBar------------------------------------------

   public void createToolBar() {
       JButton button = null;

       //Create the toolbar.
       JToolBar toolBar = new JToolBar();
     toolBar.setFloatable(false);
     toolBar.setRollover(true);
       add(toolBar, BorderLayout.PAGE_START);
     addButtons(toolBar);
   }

       //Defines method to add the buttons to the toolBar
     protected void addButtons(JToolBar toolBar) {
       JButton button = null;

       //GPS File button
       button = makeNavigationButton("gpsfile", GPSFILE,
                                     "Choose GPS File",
                                     "GPS");
      button.setMnemonic('g');
       toolBar.add(button);

       //Create the text field used for GPS File location
       GPSTextField = new JFormattedTextField();
     GPSTextField.setColumns(50);
       GPSTextField.setEditable(true);
     toolBar.add(GPSTextField);

     //add separator
     toolBar.addSeparator();

       //Video File button
       button = makeNavigationButton("vidfile", VIDFILE,
                                     "Choose Video File",
                                     "VID");
      button.setMnemonic('v');
       toolBar.add(button);

        //Create the text field used for Video File location
       VidTextField = new JFormattedTextField();
     VidTextField.setColumns(50);
       VidTextField.setEditable(true);
     toolBar.add(VidTextField);

     //add separator
     toolBar.addSeparator();

       //Create GPV File button
       button = makeNavigationButton("gpvfile", GPVFILE,
                                     "Create GPV File",
                                     "GPV");
      button.setMnemonic('p');
       toolBar.add(button);

     //add separator
     toolBar.addSeparator();

      //Play button
       button = makeNavigationButton("pointer", PLAY,
                                     "Play GPV",
                                     "PLAY");
   button.setMnemonic('p');
   toolBar.add(button);

      //Stop button
       button = makeNavigationButton("stop", STOP,
                                     "Stop GPV",
                                     "STOP");
    button.setMnemonic('s');
      toolBar.add(button);

      //Pause button
       button = makeNavigationButton("pause", PAUSE,
                                     "Pause GPV",
                                     "PAUSE");
     button.setMnemonic('h');
       toolBar.add(button);

      //points button
       button = makeNavigationButton("newpoints", NEWPOINTS,
                                     "Choose New Start & Finish
Points",
                                     "POINTS");
     button.setMnemonic('n');
       toolBar.add(button);

      //Layers button
       button = makeNavigationButton("layers", LAYERS,
                                     "Show/Hide Layers",
                                     "LAYERS");
     button.setMnemonic('l');
       toolBar.add(button);

    }

   //Define method for making the navigation buttons
     protected JButton makeNavigationButton(String imageName,
                                          String actionCommand,
                                          String toolTipText,
                                          String altText) {
       //Look for the image.
       String imgLocation = "images/"
                            + imageName
                            + ".gif";
       URL imageURL = GPVLite.class.getResource(imgLocation);

       //Create and initialize the button.
       JButton button = new JButton();
       button.setActionCommand(actionCommand);
       button.setToolTipText(toolTipText);
       button.addActionListener(this);

       if (imageURL != null) {                      //image found
           button.setIcon(new ImageIcon(imageURL, altText));
       } else {                                     //no image found
           button.setText(altText);
           System.err.println("Resource not found: "
                              + imgLocation);
       }

       return button;
   }

     //Defines action method when GPS & Vid File buttons are pressed
     public void actionPerformed(ActionEvent e) {
     //File gpsFile = null;
       String cmd = e.getActionCommand();
       //int returnVal = fchooser.showOpenDialog(GPVLite.this);

       if (GPSFILE.equals(cmd)) { //GPS File button clicked
        int returnVal = fchooser.showOpenDialog(GPVLite.this);
         gpsFile = fchooser.getSelectedFile();
         GPSTextField.setValue(gpsFile);
         //GpvData gpvfile = new GpvData(gpsFile);
         //gpvfile.createGpvData();
       } else if (VIDFILE.equals(cmd)) { //Video File button clicked
        int returnVal = fchooser.showOpenDialog(GPVLite.this);
         File vidFile = fchooser.getSelectedFile();
         VidTextField.setValue(vidFile);
       } else if (GPVFILE.equals(cmd)) { //GPV File button clicked
         GpvData gpvdata = new GpvData(gpsFile);
         gpvdata.createGpvData();
     } else if (PLAY.equals(cmd)) { //Play button clicked
        //myDataViewer.latValue.setText("eat me");
        myDataViewer.updateData();
        myDataViewer.update();
     }

    }

//-----------------End Create
ToolBar------------------------------------------

   /**
    * Create the GUI and show it.  For thread safety,
    * this method should be invoked from the
    * event-dispatching thread.
    */
   private static void createAndShowGUI() {
       //Set the look and feel to be that of the users operating
system.
       UIManager.getSystemLookAndFeelClassName();

       //Create and set up the window.
       JFrame frame = new JFrame("GPVLite");
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

     //Set image icon for frame
     //java.net.URL imgURL =
GPVLite.class.getResource("images/GPI.jpg");
     //frame.setIconImage(new ImageIcon(imgURL).getImage());

       //Create/set menu bar and content pane.
       //GPVLite myGpvl = new GPVLite();
       frame.setJMenuBar(myGpvl.createMenuBar());
       myGpvl.createToolBar();
       myGpvl.setOpaque(true); //content panes must be opaque
       frame.setContentPane(myGpvl);

       //Display the window.
     Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
     int screenX = screenSize.width;
     int screenY = screenSize.height - 50;
     frame.setSize(screenX, screenY);
       frame.setVisible(true);

   }

   public static void main(String[] args) {
       //Schedule a job for the event-dispatching thread:
       //creating and showing this application's GUI.
       javax.swing.SwingUtilities.invokeLater(new Runnable() {
           public void run() {
               createAndShowGUI();
           }
       });
   }
}

*********ClassB***********

/*
*
*/

import javax.swing.*;
import java.awt.*;
import javax.swing.JFormattedTextField;
import javax.swing.BorderFactory;
import javax.swing.border.EtchedBorder;
import javax.swing.border.Border;

public class DataViewer extends JPanel {

 JPanel blank, speedDisplay, avgDisplay, elevDisplay, distDisplay,
timeDisplay;
 JLabel speedLabel, speedValue, avgLabel, avgValue, elevLabel,
elevValue;
 JLabel distLabel, distValue, timeLabel, timeValue;
 JPanel latDisplay, lonDisplay, headDisplay, currentTitle,
summaryTitle, spacerPanel;
 JLabel latLabel, latValue, lonLabel, lonValue, headLabel, headValue,
currentLabel, summaryLabel;
 JPanel favgDisplay, maxelevDisplay, fdistDisplay, ftimeDisplay,
minelevDisplay,fmaxDisplay;
 JLabel favgLabel, favgValue, maxelevLabel, maxelevValue,
minelevLabel, minelevValue;
 JLabel ftimeLabel, ftimeValue, fdistLabel, fdistValue, fmaxLabel,
fmaxValue;

/*
* Constructors
*/

 //DataViewer Constructor with no parameters
    public DataViewer(){
     super(new GridBagLayout());
     makeGUI();
     //updateData();

    }

/*
* Methods
*/

 //Method to create the DataViewer GUI.
    public void makeGUI(){

    //Create Border variables
     Border loweredetched, raisedbevel;
     loweredetched = BorderFactory.createEtchedBorder(EtchedBorder.LOWERED);
     raisedbevel = BorderFactory.createRaisedBevelBorder();

       GridBagConstraints c = new GridBagConstraints();
     c.fill = GridBagConstraints.HORIZONTAL;

    //Create Panel for Current Data Title
     currentTitle = new JPanel();
     currentTitle.setLayout(new BorderLayout());
     currentLabel = new JLabel("Current Data",JLabel.CENTER);

    //Add label Current Data Panel
       currentTitle.add(currentLabel, BorderLayout.PAGE_END);
     currentTitle.setBorder(raisedbevel);

    //Add Panel for Current Data title to DataViewer
     c.gridwidth = 3;
       c.gridx = 0;
       c.gridy = 0;
       add(currentTitle, c);
     c.gridwidth = 1;

    //Create Panel for Avg Speed Display
     avgDisplay = new JPanel();
     avgDisplay.setLayout(new BorderLayout());
     avgLabel = new JLabel("Avg Speed",JLabel.CENTER);
     avgValue = new JLabel("0",JLabel.CENTER);
     avgValue.setFont(new Font("Arial", Font.BOLD, 20));
     avgValue.setForeground(Color.blue);

    //Add label and Value to Speed Display Panel
       avgDisplay.add(avgValue, BorderLayout.CENTER);
       avgDisplay.add(avgLabel, BorderLayout.PAGE_END);
     avgDisplay.setBorder(loweredetched);
     avgDisplay.setBackground(Color.white);

    //Add Panel for Avg Speed Display to DataViewer

       c.gridx = 0;
       c.gridy = 1;
       add(avgDisplay, c);

    //Create Panel for Elevation Display
     elevDisplay = new JPanel();
     elevDisplay.setLayout(new BorderLayout());
     elevLabel = new JLabel("Elevation",JLabel.CENTER);
     elevValue = new JLabel("0",JLabel.CENTER);
     elevValue.setFont(new Font("Arial", Font.BOLD, 20));
     elevValue.setForeground(Color.blue);

    //Add label and Value to Elevation Display Panel
       elevDisplay.add(elevValue, BorderLayout.CENTER);
       elevDisplay.add(elevLabel, BorderLayout.PAGE_END);
     elevDisplay.setBorder(loweredetched);
     elevDisplay.setBackground(Color.white);

    //Add Panel for Elevation Display to DataViewer

       c.gridx = 0;
       c.gridy = 2;
       add(elevDisplay, c);

    //Create Panel for Distance Display
     distDisplay = new JPanel();
     distDisplay.setLayout(new BorderLayout());
     distLabel = new JLabel("Distance",JLabel.CENTER);
     distValue = new JLabel("0",JLabel.CENTER);
     distValue.setFont(new Font("Arial", Font.BOLD, 20));
     distValue.setForeground(Color.blue);

    //Add label and Value to Distance Display Panel
       distDisplay.add(distValue, BorderLayout.CENTER);
       distDisplay.add(distLabel, BorderLayout.PAGE_END);
     distDisplay.setBorder(loweredetched);
     distDisplay.setBackground(Color.white);

    //Add Panel for Distance Display to DataViewer
     c.weightx = .33;
       c.gridx = 2;
       c.gridy = 1;
       add(distDisplay, c);

     //Create Panel for Time Display
     timeDisplay = new JPanel();
     timeDisplay.setLayout(new BorderLayout());
     timeLabel = new JLabel("Time",JLabel.CENTER);
     timeValue = new JLabel("0",JLabel.CENTER);
     timeValue.setFont(new Font("Arial", Font.BOLD, 20));
     timeValue.setForeground(Color.blue);

    //Add label and Value to Time Display Panel
       timeDisplay.add(timeValue, BorderLayout.CENTER);
       timeDisplay.add(timeLabel, BorderLayout.PAGE_END);
     timeDisplay.setBorder(loweredetched);
     timeDisplay.setBackground(Color.white);

    //Add Panel for Time Display to DataViewer
     
       c.gridx = 2;
       c.gridy = 2;
       add(timeDisplay, c);

    //Create Panel for Speed Display
     speedDisplay = new JPanel();
     speedDisplay.setLayout(new BorderLayout());
     speedLabel = new JLabel("Current Speed",JLabel.CENTER);
     speedValue = new JLabel("0",JLabel.CENTER);
     speedValue.setFont(new Font("Arial", Font.BOLD, 50));
     speedValue.setForeground(new Color(0xff0000));//Red

    //Add label and Value to Speed Display Panel
       speedDisplay.add(speedValue, BorderLayout.CENTER);
       speedDisplay.add(speedLabel, BorderLayout.PAGE_END);
     speedDisplay.setBorder(loweredetched);
     speedDisplay.setBackground(Color.white);

    //Add Panel for Speed Display to DataViewer
     
     c.ipady = 9;
     c.ipadx = 20;
       c.gridx = 1;
       c.gridy = 1;
     c.gridheight = 2;
       add(speedDisplay, c);
     c.gridheight = 1;

    //Create Panel for Latitude Display
     latDisplay = new JPanel();
     latDisplay.setLayout(new BorderLayout());
     latLabel = new JLabel("Latitude",JLabel.CENTER);
     latValue = new JLabel("0",JLabel.CENTER);
     latValue.setFont(new Font("Arial", Font.BOLD, 20));
     latValue.setForeground(Color.blue);

    //Add label and Value to lat Display Panel
       latDisplay.add(latValue, BorderLayout.CENTER);
       latDisplay.add(latLabel, BorderLayout.PAGE_END);
     latDisplay.setBorder(loweredetched);
     latDisplay.setBackground(Color.white);

    //Add Panel for Latitude Display to DataViewer
     c.ipady = 0;
     c.ipadx = 0;
       c.gridx = 0;
       c.gridy = 3;
       add(latDisplay, c);

     //Create Panel for Longitude Display
     lonDisplay = new JPanel();
     lonDisplay.setLayout(new BorderLayout());
     lonLabel = new JLabel("longitude",JLabel.CENTER);
     lonValue = new JLabel("0",JLabel.CENTER);
     lonValue.setFont(new Font("Arial", Font.BOLD, 20));
     lonValue.setForeground(Color.blue);

    //Add label and Value to Longitude Display Panel
       lonDisplay.add(lonValue, BorderLayout.CENTER);
       lonDisplay.add(lonLabel, BorderLayout.PAGE_END);
     lonDisplay.setBorder(loweredetched);
     lonDisplay.setBackground(Color.white);

    //Add Panel for Lonitude Display to DataViewer
     
       c.gridx = 1;
       c.gridy = 3;
       add(lonDisplay, c);

     //Create Panel for Heading Display
     headDisplay = new JPanel();
     headDisplay.setLayout(new BorderLayout());
     headLabel = new JLabel("Heading",JLabel.CENTER);
     headValue = new JLabel("0",JLabel.CENTER);
     headValue.setFont(new Font("Arial", Font.BOLD, 20));
     headValue.setForeground(Color.blue);

    //Add label and Value to Heading Display Panel
       headDisplay.add(headValue, BorderLayout.CENTER);
       headDisplay.add(headLabel, BorderLayout.PAGE_END);
     headDisplay.setBorder(loweredetched);
     headDisplay.setBackground(Color.white);

    //Add Panel for Heading Display to DataViewer
     c.weightx = .33;
       c.gridx = 2;
       c.gridy = 3;
       add(headDisplay, c);

    //Create Blank Spacer Panel
     spacerPanel = new JPanel();
     spacerPanel.setLayout(new BorderLayout());

    //Create Panel for Summary Data Title
     summaryTitle = new JPanel();
     summaryTitle.setLayout(new BorderLayout());
     summaryLabel = new JLabel("Summary Data",JLabel.CENTER);

    //Add label to Summary Data Panel
       summaryTitle.add(summaryLabel, BorderLayout.PAGE_END);
     summaryTitle.setBorder(raisedbevel);

    //Add Panel for Summary Data title to DataViewer
     //c.ipady = 40;
     c.gridwidth = 3;
       c.gridx = 0;
       c.gridy = 4;
       add(summaryTitle, c);
     c.gridwidth = 1;
     c.ipady = 0;

    //Create Panel for Final Avg Speed Display
     favgDisplay = new JPanel();
     favgDisplay.setLayout(new BorderLayout());
     favgLabel = new JLabel("Avg Speed",JLabel.CENTER);
     favgValue = new JLabel("0",JLabel.CENTER);
     favgValue.setFont(new Font("Arial", Font.BOLD, 20));
     //favgValue.setForeground(Color.blue);

    //Add label and Value to Final Avg Speed Display Panel
       favgDisplay.add(favgValue, BorderLayout.CENTER);
       favgDisplay.add(favgLabel, BorderLayout.PAGE_END);
     favgDisplay.setBorder(loweredetched);
     favgDisplay.setBackground(Color.white);

    //Add Panel for Final Avg Speed Display to DataViewer
       c.gridx = 0;
       c.gridy = 5;
       add(favgDisplay, c);

    //Create Panel for Final Max Speed Display
     fmaxDisplay = new JPanel();
     fmaxDisplay.setLayout(new BorderLayout());
     fmaxLabel = new JLabel("Max Speed",JLabel.CENTER);
     fmaxValue = new JLabel("0",JLabel.CENTER);
     fmaxValue.setFont(new Font("Arial", Font.BOLD, 20));
     //fmaxValue.setForeground(Color.blue);

    //Add label and Value to Final max Speed Display Panel
       fmaxDisplay.add(fmaxValue, BorderLayout.CENTER);
       fmaxDisplay.add(fmaxLabel, BorderLayout.PAGE_END);
     fmaxDisplay.setBorder(loweredetched);
     fmaxDisplay.setBackground(Color.white);

    //Add Panel for Final max Speed Display to DataViewer
       c.gridx = 1;
       c.gridy = 5;
       add(fmaxDisplay, c);

    //Create Panel for Final Distance Display
     fdistDisplay = new JPanel();
     fdistDisplay.setLayout(new BorderLayout());
     fdistLabel = new JLabel("Distance",JLabel.CENTER);
     fdistValue = new JLabel("0",JLabel.CENTER);
     fdistValue.setFont(new Font("Arial", Font.BOLD, 20));
     //fdistValue.setForeground(Color.blue);

    //Add label and Value to Final Distance Display Panel
       fdistDisplay.add(fdistValue, BorderLayout.CENTER);
       fdistDisplay.add(fdistLabel, BorderLayout.PAGE_END);
     fdistDisplay.setBorder(loweredetched);
     fdistDisplay.setBackground(Color.white);

    //Add Panel for Distance Display to DataViewer
     c.weightx = .33;
       c.gridx = 2;
       c.gridy = 5;
       add(fdistDisplay, c);

     //Create Panel for Final Time Display
     ftimeDisplay = new JPanel();
     ftimeDisplay.setLayout(new BorderLayout());
     ftimeLabel = new JLabel("Time",JLabel.CENTER);
     ftimeValue = new JLabel("0",JLabel.CENTER);
     ftimeValue.setFont(new Font("Arial", Font.BOLD, 20));
     //ftimeValue.setForeground(Color.blue);

    //Add label and Value to Final Time Display Panel
       ftimeDisplay.add(ftimeValue, BorderLayout.CENTER);
       ftimeDisplay.add(ftimeLabel, BorderLayout.PAGE_END);
     ftimeDisplay.setBorder(loweredetched);
     ftimeDisplay.setBackground(Color.white);

    //Add Panel for Time Display to DataViewer
     
       c.gridx = 2;
       c.gridy = 6;
       add(ftimeDisplay, c);

    //Create Panel for Max Elevation Display
     maxelevDisplay = new JPanel();
     maxelevDisplay.setLayout(new BorderLayout());
     maxelevLabel = new JLabel("Max Elev",JLabel.CENTER);
     maxelevValue = new JLabel("0",JLabel.CENTER);
     maxelevValue.setFont(new Font("Arial", Font.BOLD, 20));
     //maxelevValue.setForeground(Color.blue);

    //Add label and Value to Max Elevation Display Panel
       maxelevDisplay.add(maxelevValue, BorderLayout.CENTER);
       maxelevDisplay.add(maxelevLabel, BorderLayout.PAGE_END);
     maxelevDisplay.setBorder(loweredetched);
     maxelevDisplay.setBackground(Color.white);

    //Add Panel for Max Elevation Display to DataViewer

       c.gridx = 1;
       c.gridy = 6;
       add(maxelevDisplay, c);

    //Create Panel for min Elevation Display
     minelevDisplay = new JPanel();
     minelevDisplay.setLayout(new BorderLayout());
     minelevLabel = new JLabel("Min Elev",JLabel.CENTER);
     minelevValue = new JLabel("0",JLabel.CENTER);
     minelevValue.setFont(new Font("Arial", Font.BOLD, 20));
     //minelevValue.setForeground(Color.blue);

    //Add label and Value to min Elevation Display Panel
       minelevDisplay.add(minelevValue, BorderLayout.CENTER);
       minelevDisplay.add(minelevLabel, BorderLayout.PAGE_END);
     minelevDisplay.setBorder(loweredetched);
     minelevDisplay.setBackground(Color.white);

    //Add Panel for min Elevation Display to DataViewer

       c.gridx = 0;
       c.gridy = 6;
       add(minelevDisplay, c);
    }
 /*Method to update data
    public void updateData() {
     latValue.setText("Help me");
    }