Specifications

Sun Services
Java™ Programming Language Module 3, slide 9 of 37
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. Sun Services, Revision F
Identifiers
Identifiers have the following characteristics:
• Are names given to a variable, class, or method
• Can start with a Unicode letter, underscore (
_ ), or
dollar sign ($)
• Are case-sensitive and have no maximum length
• Examples:
identifier
userName
user_name
_sys_var1
$change