Problems calling nested panels

Hi there I've been going round in circles trying to figure this out. I have a jframe which is split in two, two seperate classes add content to each panel. I have a a mouse listener in one of these classes which I want to use to update the other panel in the other class. I don't know how to reference the other class though!
Can someone put me in the right direction?
thanks

alshac,
One way to do this is to pass into the mouselistener object a reference to the other object. You may do this in the constructor, or after the fact. This approach may produce undesirable coupling.
Alternatively add the mouselistener object as a listener to the other class, or to its contained panel.
--A

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