🚀 go-pugleaf

I am creating a simple Binary,hex,decimal converter.
It's classes are:
- main Gui setup class
- ActionLisenter class for when button is pressed to convert numbers

I have it all working, exept that all my GUI components declared in the
setup class are declared public.

I want (simply for the exercise) to declare these private and add
methods
to the setup class, to allow communication for the seperate
actionlistener.

eg.. at the moment my ActionListener class consists of

   public void actionPerformed(ActionEvent e)
   {
   ...
   ....
   if(e.getSource()==main.jbutton)  //main is reference to gui setup
       //class that is passed when listener
       //is instantiated.
   ...//does appropriate calculations and passes
   ...//results back to main Gui using set methods.

If none of this makes sence, all I'm trying to do is use a listener that
is
not a nested class. How do I make them communicate properly.  Anyone
with
source code to any program doing this would be a help.

Thankyou
Any responce appreciated.
gavin.