We use the following font conventions in this book:
Italic is used for:
Pathnames, filenames, and program names
Internet addresses, such as domain names and URLs
New terms where they are defined
Constant width is used for:
Command lines and options that should be typed verbatim
Names and keywords in programs, including method names, variable names, and class names
XML element tags
Constant Width Bold is used for:
Marked lines of output in examples
Constant Width Italic is used for:
Items that should be replaced by actual values