How to fire an event?

Hello guys! I came across a big problem this morning, please help me!
I'm thinking about defining an event, which is supposed to extend AWTEvent, so as to help communicating between two beans. However, when I have almost started, I find I completely have no idea about how to dispatch an event, though I have used Listeners many times!
I'll be very grateful if you'll kindly give me some hints. Thank you!

Dispatching an event is basically just a method call.
All the listeners implement some listener interface, right? And those interfaces invariably define a method that takes an event object and has no return value (i.e., it's void).
So basically you create that event object and call then call the method on those listeners.

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How to fire an event?

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