A MIDlet is a Java program for embedded devices, more specifically the Java ME virtual machine. Generally, these are games and applications that run on a cell phone.

Mobile Information Device toolkit

A MIDlet requires a device that implements at least Java ME, CLDC and MIDP to run. Like other Java programs, MIDlets have a "compile once, run anywhere" potential. MIDlet distributions main file is a .jar file, but MIDlet distributions can also consist of a .jad file containing the location of and describing the contents of the .jar file. The implementation of a MIDlet may or may not require the presence of a .jad file.

A MIDlet has to fulfill the following requirements in order to run on a mobile phone:

• The main class needs to be a subclass of javax.microedition.midlet.MIDlet
• The MIDlet needs to be packed inside a .jar file (e.g. by using the jar-tool)
• The .jar file needs to be pre-verified by using a preverifier.
• In some cases, the .jar file needs to be signed by the mobile phone's carrier.

External links

• Sun's Java website: Contains, among other things, NetBeans, with which the additional NetBeans Mobility Pack can be used to program MIDlets.
• Don's MIDlet games and programming tutorials
• CellPhoto.Net: Java Midlets installer via wap
• Multime MIDlet Manager – for combining two java programs into one jar file and installing them as a single application on the mobile phone
• Java Midlet: A site about mobile Java development, applications, games, Java phones and news.
• ProScout Example Midlet: A freely downloadable sample Midlet, with source code, incorporating Perst Lite embedded object-oriented database.