Editing MIDlet (section)

{{Short description|Java ME application format}}
[[File:MMI RATP.JPG|thumb|MIDlet running in J2ME emulator]]
A '''MIDlet''' is an application that uses the [[Mobile Information Device Profile]] (MIDP) of the [[Connected Limited Device Configuration]] (CLDC) for the [[Java ME]] environment. Typical applications include games running on mobile devices such as [[smartphone]]s with [[J2ME]] support and [[feature phone]]s which have small graphical displays, simple numeric keypad interfaces and limited network access over [[HTTP]].<ref>{{cite book |last=Topley |first=Kim |title=J2ME in a Nutshell |year=2002 |publisher=[[O'Reilly Media]] |isbn=978-0-596-00253-4 |url=https://archive.org/details/j2meinnutshellde00topl |url-access=registration |access-date=3 March 2010 |pages=[https://archive.org/details/j2meinnutshellde00topl/page/46 46]–47}}</ref>

The <code>.jad</code> file describing a MIDlet suite is used to deploy the applications in one of two ways. Over the air (OTA) deployment involves uploading the <code>.jad</code> and <code>.jar</code> files to a [[Web server]] which is accessible by the device over [[HTTP]]. The user downloads the <code>.jad</code> file and installs the MIDlets they require.<ref>{{cite web|title=Introduction to OTA Application Provisioning|url=http://developers.sun.com/mobility/midp/articles/ota/}}</ref> Local deployment requires that the MIDlet files be transferred to the device over a non-network connection (such as through [[Bluetooth]] or [[IrDa]], and may involve device-specific software).<ref>{{cite web|title=Deploying Wireless Java Applications|url=http://developers.sun.com/mobility/midp/articles/deploy/}}</ref> Phones that support [[Secure Digital|microSD]] cards can sometimes install .jar or .jad files that have been transferred to the memory card.