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.
As for styles in the text:
??‘ New terms and important words are highlighted when we introduce them.
??‘ Keyboard strokes look like this: Ctrl+A.
??‘ Filenames, URLs, and code within the text are shown like this: persistence.properties.
??‘ Code is presented in two different ways:
A monofont type with no highlighting is used for most code examples.
Gray highlighting to emphasize code that??™s particularly important in the present
context.
xxv
Introduction
Source Code
As you work through the examples in this book, you may choose either to type in all the code manually or
to use the source code files that accompany the book. All of the source code used in this book is available
for downloading 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 the book??™s detail page
to obtain all the source code for the book.
Pages:
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28