Conventions Used in This Book

The following font conventions are used 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 program examples, including method names, variable names, and class names

Constant Width Italic is used for:

• Replaceable items, such as variables or optional elements, within syntax lines or code

Constant Width Bold is used for:

• Emphasis within program code

Pay special attention to notes set apart from the text with the following icons:

This is a tip. It contains useful supplementary information about the topic at hand.

This is a warning. It helps you solve and avoid annoying problems.