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Essential Classes: End of Trail

> You've reached the end of the "Essential Classes" 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:

> Creating a GUI with JFC/Swing: Once you know how to create applications or applets, follow this trail to learn how to create their user interfaces.

> Collections: Using the classes and interfaces in the collections framework you can group objects together into a single object.

> Internationalization: Essential if you want to create a program that can be used by people all over the world. Furthermore, you can use the information about formatting dates, numbers, and strings in any program.

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