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The Extension Mechanism: End of Trail

> You've reached the end of the "The Extension Mechanism" trail.

> If you have comments or suggestions about this trail, use our feedback page to tell us about it.

> ## What next?

> Once you've caught your breath, you have several choices of where to go next. You can go to the front page to see all of your choices, or you can go directly to one of the following related trails:

> Writing Applets: This is the starting point for learning everything about writing applets.

> JAR Files: Extensions must be bundled in JAR files.

Previous page: Sealing Packages in Extensions