Specifications

Sun Services
Java™ Programming Language Module 7, slide 12 of 44
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. Sun Services, Revision F
The final Keyword
• You cannot subclass a final class.
• You cannot override a final method.
•Afinal variable is a constant.
• You can set a final variable once only, but that
assignment can occur independently of the declaration;
this is called a blank final variable.
• A blank final instance attribute must be set in every
constructor.
• A blank final method variable must be set in the
method body before being used.