Italic is used for:
Pathnames, filenames, and program names
New terms where they are defined
Internet addresses, such as domain names and URLs
Constant width is used for:
Anything that appears literally in a JSP or Java program, including keywords, data types, constants, method names, variables , class names, and interface names
Command lines and options that should be typed verbatim on the screen
All JSP and Java code listings
HTML documents, tags, and attributes
Constant width italic is used for:
General placeholders that indicate that an item is replaced by some actual value in your own program
Constant width bold is used for:
Text that is typed in code examples by the user
This icon designates a note, which is an important aside to the nearby text.
This icon designates a warning relating to the nearby text.