This book follows certain conventions for font usage. Understanding these conventions up-front makes it easier to use this book.
Used for filenames, file extensions, URLs, application names , emphasis, and new terms when they are first introduced.
Used for Java class names, methods , variables , properties, data types, database elements, and snippets of code that appear in text.
Used for commands you enter at the command line and to highlight new code inserted in a running example.
Used to annotate output.