Intercepting keystrokes not working

Question

I have a need to validate/format keyed data, so I came up with a class which I thought would solve the problem. The problem is that the characters display on the device before I can intercept them. Is there a better way to achieve this? I'm using a Symbol MC7094 running IBM J9 v2.3. Here's the class:
public class FormattedTextField extends TextField implements KeyListener
    private int maxLength;
    public FormattedTextField( String initialStr, int col, int maxLength )
        super( initialStr, col );
        this.maxLength = maxLength;
        addKeyListener( this );
    public FormattedTextField( int col, int maxLength )
        this( "", col, maxLength );
    public void keyPressed( KeyEvent e ) {}
    public void keyReleased( KeyEvent e ) {}
    public void keyTyped( KeyEvent e )
        char c = e.getKeyChar();
        int len = getText().length();
        if (( c == KeyEvent.VK_BACK_SPACE ) || ( c == KeyEvent.VK_DELETE ) ||
            ( c == KeyEvent.VK_ENTER ) || ( c == KeyEvent.VK_TAB ) ||
            e.isActionKey() )
            return ;
        if ( len < maxLength )
            return;
        else
            e.consume();
}I did try this with the keyPressed() method as well, with the same result.
TIA,
Jeff

Answer 1

I was wondering the same. All of a sudden the f7, f8, and f9 controls arent working for Itunes when they worked perfectly fine before. I've tried searching different forums for the solution and have tried all of them but to no avail. I've never changed the keyboard settings, and haven't done anything to tweak the computer, just used the programs as usual and upgraded my Itunes.
I just downloaded ITunes 10 so I'm wondering if this has something to do with it.