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 items 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

• URIs used as identifiers by RDF

Constant-width bold is used for emphasis in program code lines.

Constant-width italic is used for replaceable arguments within program code.

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