This book uses the following conventions.
I use the following terminology in this book. A program means either an applet, a servlet, or an application. An applet is for use in a browser. A servlet is similar to an applet but for use in a server. An application is any other type of program. A desktop application (a.k.a. client) interacts with the user. A server program deals with a client indirectly, usually via a network connection.
The examples shown are in two varieties. Those that begin with zero or more import statements, a Javadoc comment, and a public class statement are complete examples. Those that begin with a declaration or executable statement, of course, are excerpts. However, the full versions of these excerpts have been compiled and run, and the online source includes the full versions.
Recipes are numbered by chapter and number, so, for example, Recipe 7.5 refers to the fifth recipe in Chapter 7.
The following typographic conventions are used in this book:
Many programs are accompanied by an example showing them in action, run from the command line. These will usually show a prompt ending in either $ for Unix or > for Windows, depending on which computer I was using that day. Text before this prompt character can be ignored; it will be a pathname or a hostname, again depending on the system.