Editing Java Platform, Micro Edition (section)

== Connected Limited Device Configuration ==
{{Main|Connected Limited Device Configuration}}
The [[Connected Limited Device Configuration]] (CLDC) contains a strict subset of the Java-class libraries, and is the minimum amount needed for a [[Java virtual machine]] to operate. CLDC is basically used for classifying myriad devices into a fixed configuration.

A configuration provides the most basic set of libraries and virtual-machine features that must be present in each implementation of a J2ME environment. When coupled with one or more profiles, the Connected Limited Device Configuration gives developers a solid Java platform for creating applications for consumer and embedded devices.
The configuration is designed for devices with 160KB to 512KB total memory, which has a minimum of 160KB of ROM and 32KB of RAM available for the Java platform.

=== Mobile Information Device Profile ===
Designed for mobile phones, the [[Mobile Information Device Profile]] includes a [[Graphical user interface|GUI]], and a data storage API, and MIDP 2.0 includes a basic 2D gaming [[Application programming interface|API]]. Applications written for this profile are called [[MIDlet]]s.

''JSR 271: Mobile Information Device Profile 3'' (Final release on Dec 9, 2009) specified the 3rd generation Mobile Information Device Profile (MIDP3), expanding upon the functionality in all areas as well as improving interoperability across devices. A key design goal of MIDP3 is backward compatibility with MIDP2 content.

==== Information Module Profile ====
The [[Information Module Profile]] (IMP) is a profile for embedded, "headless" devices such as vending machines, industrial embedded applications, security systems, and similar devices with either simple or no display and with some limited network connectivity.

Originally introduced by [[Siemens AG|Siemens Mobile]] and [[Nokia]] as [[Java Specification Request|JSR]]-195, IMP 1.0 is a strict subset of [[MIDP]] 1.0 except that it does not include [[user interface]] APIs &mdash; in other words, it does not include support for the Java package <code>javax.microedition.lcdui</code>. JSR-228, also known as IMP-NG, is IMP's next generation that is based on [[MIDP]] 2.0, leveraging [[MIDP]] 2.0's new security and networking types and APIs, and other APIs such as <code>PushRegistry</code> and <code>platformRequest()</code>, but again it does not include UI APIs, nor the game API.