Problem Writing to text area reposted forgot my code

Question

I have 3 seperate Classes Main, GUI, and FileChange.
The Main class runs and constructs the GUI class. The GUI class builds my application. Then the program stops until a user action is committed. If the user opens a file the FileChange class gets the selected file and manipulates it. I tokenize the stings in the file and send the info i want back over to the JTextArea in the GUI class but nothing prints out. The program compiles but informaiton is not written to the text area, why?
The file change makes a call like such:
g.outputText(genre, composer, artist, albumTitle, trackNum, songTitle, count);
the the method that is called does this:
mainText.append(gnr+" ");
if(count==1){mainText.append(cmp+" ");}
mainText.append(art+" "+alb+" "+trk +" "+st.substring(3)+".mp3");
I dont understand why I cant append text to the JTextArea. I can place text in the TextArea during constructor initialization of the GUI class but not when i call the method that appends text from the FileChange class.The Code is posted below
Thanks in advance for your help
p
Main Class//////////////////////////////////////////////////
package musicmatch_library_test;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
import java.io.*;
import java.util.*;
public class Main implements WindowListener
public Main()
     super();
     public static void main(String args[])
GUI f = new GUI();
f.setSize(800,600);
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
     public void windowActivated(WindowEvent e)
     public void windowClosed(WindowEvent e)
     public void windowClosing (WindowEvent e)
          GUI f = new GUI();
          f.quitApplication( );
     public void windowDeactivated(WindowEvent e)
     public void windowDeiconified(WindowEvent e)
     public void windowIconified(WindowEvent e)
     public void windowOpened(WindowEvent e)
GUI Class
package musicmatch_library_test;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
import java.io.*;
class GUI extends JFrame implements ActionListener, FilenameFilter
private JMenuBar menuBar = new JMenuBar(); // Creating The MenuBar
protected JFileChooser dialogBox = new JFileChooser(); //create load dialog box
private JMenu fileMenu, editMenu, helpMenu; // Menu Options
protected JMenuItem fileOpen, fileSaveAs, fileExit; // File Option
private JMenuItem editDelete; //Edit Options
private JCheckBoxMenuItem wordWrap;
private JMenuItem helpQuestions, helpAbout; // Help Options
private JTextArea mainText = new JTextArea();
//public FileChange changeFile = new FileChange();
public GUI()
     super("Library Converter v.001"); //Title bar text
     getContentPane().setLayout(new BorderLayout());
this.setJMenuBar(menuBar); // Add menu Bar to the screen
initFileMenu(); // goes to the file menu method
initEditMenu(); // " " edit menu method
initHelpMenu(); // " " help menu method
initTextArea();     // " " text area setup
System.setProperty("line.separator", "\r\n");
     public boolean accept(File dir, String name)
          System.out.println("accept():");
          if (name.endsWith(".txt")) return true;
          return false;
     public void actionPerformed(ActionEvent e)
if(e.getSource() == fileExit)     //if statement to close app
quitApplication();
}//end if (e.getSource() == fileExit)
if(e.getSource() == fileSaveAs)
FileChange changeFile = new FileChange();
changeFile.fileSaveAs();
}//end if (e.getSource() == fileSaveAs)
if(e.getSource() == fileOpen)     //if statement to open a file
openFile();
}//end if (e.getSource() == fileOpen)
if(e.getSource() == wordWrap)     //if statement to turn word wrap on/off
if(wordWrap.getState() == false)
mainText.setLineWrap(false);
mainText.setLineWrap(false);
}//end if (wordWrap.getState() == false)
else if(wordWrap.getState() == true)
mainText.setLineWrap(true);
mainText.setLineWrap(true);
}//end else if (wordWrap.getState() == true)
}//end if (e.getSource() == wordWrap)
     }//end action performed
     private void initEditMenu()
editMenu = new JMenu("Edit"); //Adding Edit to Menu
editMenu.setMnemonic('E');
menuBar.add(editMenu);
wordWrap = new JCheckBoxMenuItem("Word Wrap", false); //adding a word wrap on/off button
wordWrap.addActionListener(this);
wordWrap.setEnabled(true);
editMenu.add(wordWrap);
editDelete = new JMenuItem("Delete"); //adding delete inside the "edit" options
//editDelete.addActionListener(this);
editDelete.setEnabled(false);
editMenu.add(editDelete);
     }//intEditMenu
     private void initFileMenu()
fileMenu = new JMenu("File"); // Adding File to the menu bar
fileMenu.setMnemonic('F');
menuBar.add(fileMenu);
fileOpen = new JMenuItem("Open"); // Adding open to the Menu
fileOpen.setMnemonic('O');
fileOpen.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK));
fileOpen.addActionListener(this);
fileOpen.setEnabled(true);
fileMenu.add(fileOpen);
fileSaveAs = new JMenuItem("Save File As"); // Save file info
fileSaveAs.setMnemonic('S');
fileSaveAs.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK));
fileSaveAs.addActionListener(this);
fileSaveAs.setEnabled(false);
fileMenu.add(fileSaveAs);
fileExit = new JMenuItem("Exit"); //Exit Item
fileExit.setMnemonic('X');
fileExit.addActionListener(this);
fileMenu.add(fileExit);
     private void initHelpMenu()
helpMenu = new JMenu("Help"); //adding help menu
helpMenu.setMnemonic('H');
menuBar.add(helpMenu);
helpQuestions = new JMenuItem("Questions"); // Questions Item
helpQuestions.addActionListener(this);
helpQuestions.setEnabled(false);
helpMenu.add(helpQuestions);
helpMenu.addSeparator();
helpAbout = new JMenuItem("About"); //addind About stuff
helpAbout.addActionListener(this);
helpAbout.setEnabled(false);
helpMenu.add(helpAbout);
private void initTextArea()
     mainText.setEditable(false);
     mainText.setVisible(true);
JScrollPane scrollPane = new JScrollPane(mainText);
getContentPane().add(scrollPane, "Center");
     public void openFile()
     {//method to start the opening of a file
          FileChange changeFile = new FileChange();
//fileSaveAs.setEnabled(true);
          mainText.setText("Please Be Patient While Opening The File");
          dialogBox.setCurrentDirectory(new File("C:/Documents and Settings/Administrator/My Documents/Java Stuff/Personal Projects")); //set default path
          dialogBox.showOpenDialog(this);                         //opens the dialog box to select a file
          changeFile.fileManip(dialogBox.getSelectedFile().getPath());//get the directory plus the file and pass it to fname in displayTab1()
     }// end openFile()
public void outputText(String gnr, String cmp, String art, String alb, String trk, String st, int count)
     mainText.append(gnr+" ");
     if(count==1){mainText.append(cmp+" ");}
     mainText.append(art+" "+alb+" "+trk +" "+st.substring(3)+".mp3");
     public void quitApplication( )
          setVisible(false );
          dispose( );
          System.exit(0);
FileChange Class
package musicmatch_library_test;
import java.io.*;
import java.util.*;
import javax.swing.*;
class FileChange extends GUI
     JTextArea fcText = new JTextArea();
public     FileChange()
     super();
     public void fileManip(String fname)
     {//this mehtod will edit and display and save certain info in tab1s display area
     GUI g = new GUI();
     try
BufferedReader inFile = new BufferedReader(new FileReader(fname));
PrintWriter outStream = new PrintWriter (new FileWriter(fileSaveAs())); //dialogBox.getSelectedFile()
          String line = inFile.readLine();
          fcText.setText("");
          int count;          
          while(line != null)
               StringTokenizer cut = new StringTokenizer(line, "\\");
               count = cut.countTokens();
               if(count == 6 || count ==7)
                    String drive = cut.nextToken();
                    String folder = cut.nextToken();
                    String genre = cut.nextToken();
                    String composer=null;
                    if(count ==7)
                         composer = cut.nextToken();
                         count = 1;
                         String artist = cut.nextToken();
                         String albumTitle = cut.nextToken();
                         String trackNum = cut.nextToken("\\ -");
                         String songTitle = cut.nextToken(".");
                         g.outputText(genre, composer, artist, albumTitle, trackNum, songTitle, count);
                    outStream.print(genre+" ");
                    if(count==1){outStream.print(composer+" ");}
                    outStream.println(artist+" "+albumTitle+" "+trackNum +" "+songTitle.substring(3)+".mp3");
                    count = 0;
               }//if(count == 6)
                    line = inFile.readLine();
          }//end while(line != null)
          outStream.close();
          inFile.close();
     }//end try
     catch(FileNotFoundException e)
          g.fileSaveAs.setEnabled(false);
          fcText.setText("NO File will be open, File Not Found");
     }//end catch (FileNotFoundException e)
     catch(IOException e)
g.fileSaveAs.setEnabled(false);
fcText.setText("NO File will be open");
System.exit(1);
     }//end catch (IOException e)
     catch(NoSuchElementException e)
          fcText.setText("No MoreTokens");
}//end FileManip()     
     public File fileSaveAs()
{//method for saving a file
     GUI a = new GUI();          
a.dialogBox.setCurrentDirectory (new File("C:/Documents and Settings/Administrator/My Documents/Java Stuff/Personal Projects"));
a.dialogBox.showSaveDialog(a.getContentPane());
//File toSaveAs = a.dialogBox.getSelectedFile();
return a.dialogBox.getSelectedFile();
}//end fileSaveAs()

Answer 1

For instance in your main you can have:
public class Main implements WindowListener {
  public static GUI f;
  public Main(){
    super();
  public static void main(String args[]) {
    f = new GUI();
    f.setSize(800,600);
    f.setVisible(true);
    f.addWindowListener(new WindowAdapter() {
      //Window Adapter Stuff...By the way if you use the WindowAdapter
      //You don't have to stub out the methods you don't use, just write
      //the ones you do use, that is what makes adapters better then
      //listeners...
  public static GUI getGUIInstance() {
    return f;
//then in the fileChange methods that need to use the GUI do:
  GUI g = Main.getGUIInstance();Steve