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:

Tip

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

Warning

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

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