This book is by two authors, but with one voice. The stories come
from the real-life experiences of Bruce and Justin. In everywhere but
this paragraph, we''ve combined our voices, so that
we don''t confuse you. Don''t worry.
We both agree about everything that you see here.
The following typographical conventions are used in this book:
Used for filenames, directories, emphasis, and first use of a
Used in code examples and for class names, method names, and objects.
Constant width italic
Indicates an item that should be replaced with an actual value in
Constant width bold
Used for user input in text and in examples showing both input and
output. Also used for emphasis in code, and in order to indicate a
block of text included in an annotated call-out.