Resize JTextArea dynamically

Hi, I was wondering if there is a way to dynamically resize a JTextArea
when I resize my JFrame. This is the code I have so far

[code]
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ComponentEvent;
/*
 * RoosterGui.java
 *
 * Created on July 10, 2006, 9:32 PM
 */

public class RoosterGui extends javax.swing.JFrame {

    public RoosterGui() {
        initComponents();
        placeFrame();
    }

    private void placeFrame(){
        Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
        Rectangle window = getBounds();
        this.setLocation((screen.width - window.width)/2,
(screen.height - window.height)/2);
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
    private void initComponents() {
        mainPane = new javax.swing.JPanel();
        editorScroll = new javax.swing.JScrollPane();
        editor = new javax.swing.JTextArea();
        menuBar = new javax.swing.JMenuBar();
        fileMenu = new javax.swing.JMenu();
        editMenu = new javax.swing.JMenu();
        formatMenu = new javax.swing.JMenu();
        toolsMenu = new javax.swing.JMenu();
        helpMenu = new javax.swing.JMenu();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Rooster Editor v4.1");
        mainPane.setLayout(new java.awt.BorderLayout());

        editor.setColumns(20);
        editor.setFont(new java.awt.Font("Arial", 0, 12));
        editor.setRows(5);
        editor.setMinimumSize(new java.awt.Dimension(100, 37));
        editorScroll.setViewportView(editor);

        mainPane.add(editorScroll, java.awt.BorderLayout.CENTER);

        fileMenu.setText("File");
        menuBar.add(fileMenu);

        editMenu.setText("Edit");
        menuBar.add(editMenu);

        formatMenu.setText("Format");
        menuBar.add(formatMenu);

        toolsMenu.setText("Tools");
        menuBar.add(toolsMenu);

        helpMenu.setText("Help");
        menuBar.add(helpMenu);

        setJMenuBar(menuBar);

        org.jdesktop.layout.GroupLayout layout = new
org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(mainPane,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 559, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(mainPane,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 307, Short.MAX_VALUE)
        );
        pack();
    }// </editor-fold>

    // Variables declaration - do not modify
    private javax.swing.JMenu editMenu;
    private javax.swing.JTextArea editor;
    private javax.swing.JScrollPane editorScroll;
    private javax.swing.JMenu fileMenu;
    private javax.swing.JMenu formatMenu;
    private javax.swing.JMenu helpMenu;
    private javax.swing.JPanel mainPane;
    private javax.swing.JMenuBar menuBar;
    private javax.swing.JMenu toolsMenu;
    // End of variables declaration

}
[/code]

Basically when I resize the Frame (the window) the JTextArea will
remain at the same size as it was before I started to drag the window.
So I drag the window and what happens is that only untill I am finished
dragging and I let go of the mouse, then the JTextArea resizes to the
current size of the window. Is there a way to make it so that the
JTextArea is resized as I am dragging the window. A example of what I
want is notepad. When resized the text box resizes with the window
accordingly. In java it doesn't resize the JTextArea untill I complete
the window resizing action. Is there a way I can make the JTextArea
resize with the window as I am dragging the window.

-- Thanks.