Java Network Programming, Second Edition

Conventions Used in This Book

Body text is Times Roman, normal, like you’re reading now.

A Constant width font is used for:

• Code examples and fragments

• Keywords, operators, data types, variable names, class names, and interface names that might appear in a Java program

• Program output

• Tags that might appear in an HTML document

A bold constant width is used for:

• Command lines and options that should be typed verbatim on the screen

An italicized constant width font is used for:

• Replaceable or variable code fragments

An italicized font is used for:

• New terms where they are defined

• Pathnames, filenames, and program names. (However, if the program name is also the name of a Java class, it is given in a monospaced font, like other class names.)

• Host and domain names (java.oreilly.com)

• Titles of other books (Java I/O)

Significant code fragments and complete programs are generally placed in a separate paragraph like this:

Socket s = new Socket("java.oreilly.com", 80);
if (!s.getTcpNoDelay(  )) s.setTcpNoDelay(true);

When code is presented as fragments rather than complete programs, the existence of the appropriate import statements should be inferred. For example, in the previous code fragment you may assume that java.net.Socket was imported.

Some examples intermix user input with program output. In these cases, the user input will be displayed in bold, as in this example from Chapter 10:

% telnet localhost 7
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
This is a test This is a test ...