Graphics, AWT, Swing I part

the components in the Frame. Is there a way to get a list of the listeners out of a

given component? I really don t want to have to track every single button I add to

every single Frame, and every single Listener I add to every single component. If I

have to keep track of all of that, it sort of defeats a lot of the advantages of a

well defined object oriented system.

Answer: I think you re slightly confused here. When another object registers as a

listener for a component within the frame, it s the component within the frame that is

holding a reference to the external object in its listeners list   not vice versa. 

Which means you don t really need to explicitly remove every listener that any other

object registered on components in the frame. 

What you need to worry about is however the listeners that the frame itself registered

with some other components that are still alive. If the frame gets disposed without

removing these, the objects that were being listened to will retain a reference to the

frame and this can cause the frame to stay around as long as these objects which

hold these references stay alive.

So look for all Listeners that your frame registered itself as on components external

to itself (should be fairly easy to see since you normally do it in your constructor) and

remove those before disposing off the frame.

Kala

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