
conventIons
To help you get the most from the text and keep track of what’s happening, we’ve used a number of
conventions throughout the book.
Boxes like this one hold important, not-to-be forgotten information that is
directly relevant to the surrounding text.
Notes, tips, hints, tricks, and asides to the current discussion are offset and
placed in italics like this.
References like this one point you to the DVD to watch the instructional video
that accompanies a given lesson.
As for styles in the text:
We highlight new terms and important words when we introduce them.
We show keyboard strokes like this: Ctrl+A.
We show file names, URLs, and code within the text like so:
persistence.properties.
We present code in two different ways:
We use a monofont type with no highlighting for most code examples.
We use bold to emphasize code that’s particularly important in the present
context.
supportIng packages and code
As you work through the lessons in this book, you may choose either to type in any code and cre-
ate all the packages manually or to use the supporting packages and code files that accompany the
book. All the packages, code, and other support files used in this book are available for download at
www.wrox.com. Once at the site, simply locate the book’s title (either by using the Search box or by
using one of the title lists) and click the Download Code link on t ...