The profile included in JRE helps the developer to add domain-specific classes. The profiles used with CLDC are mobile information device profile (MIDP) and PDA profile (PDAP). The profiles used with CDC include Foundation Profile, Game Profile, Personal Profile, Personal Basis Profile, and RMI Profile.The configuration, on the other hand, helps to define the basic set of core classes and JVM used. It is of two types CLDC for handheld devices and CDC for plug-in devices.
For More Info :- Java Development