Conventions Used in This Book
Understanding the following font conventions up front makes it easier to use this book.
Italic is used for:
Pathnames, filenames, program names, compilers, and options
New terms where they are defined
Internet addresses, such as domain names and URLs
Constant width is used for:
Anything that appears literally in a page or a program, including keywords, data types, constants, method names, variables, parameters, commands, class names, and interface names
Command lines and options that should be typed verbatim on the screen
All code listings
HTML and XML documents, tags, and attributes
Constant width italic is used for:
General placeholders that indicate that an item is replaced by some actual value in your own program
Constant width bold is used for:
Text that is typed in code examples by the user
Tip
This icon designates a general tip or an important aside to the surrounding text.
Warning
This icon designates a warning related to the surrounding text.