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Applet Lifecycle
- An applet begins its life when the web
browser loads its classes and calls its init() method. Thus, in the
init() method you should provide initialization code such as the
initialization of variables. Once the initialization is complete,
the web browser will call the start() method in the applet. At this
point the user can begin interacting with the applet.
- But what would happen if the user moved to
another web page while the applet was executing? Well, if this
happens, the web browser will call the applets stop() method so that
the applet can take a breather while the user goes off and explores
the web some more.
- If the user returns to the applet, the web
browser will simply call the applet's start() method again and the
user will be back into the program.
- Finally, if the user decides to quit the
web browser, the web browser will free up system resources by
killing the applet before it closes. To do so, it will call the
applets destroy() method.
- You are welcome to override any of the
methods in order to provide your own logic. For example, you may
want to provide logic in the stop() method which performs some
cleanup or save operation.
- Finally, you can override destroy() to
perform one-time tasks upon program completion. One example is
cleaning up threads which were started in the init() method.
Additional Resources:
Writing Applets
Table of Contents
Java Applet by Example
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