W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use , cookie and privacy policy. Copyright by Refsnes Data. All Rights Reserved. The root class from which all event state objects shall be derived.
All Events are constructed with a reference to the object, the "source", that is logically deemed to be the object upon which the Event in question initially occurred upon. Since: JDK1. Methods inherited from class java. Object clone , equals , finalize , getClass , hashCode , notify , notifyAll , wait , wait , wait Field Detail source protected transient Object source The object on which the Event initially occurred.
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Calling an event method raises the event after registering the event handler method with the object. Click for Topics listing. Summary -. An instance event can only gets triggered in an instance method.
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