Short for Java 2 Platform Micro Edition. J2ME is Sun Microsystems’ answer to a consumer wireless device platform. J2ME allows developers to use Java and the J2ME wireless toolkit to create applicationsand programs for wireless and mobile devices.
J2ME consists of two elements — configurations and profiles.
Configurations provide a set of libraries and a virtual machine for a category of wireless device. There are two configurations for J2ME, one for fixed wirelessdevices and one for mobile wireless devices.
Profiles are APIs built on top of configurations to provide a runtime environment for a specific device, such as a PDA, cellphone, or set-top box. The profile manages the application, user interface, networking and I/O.
In order to support Java apps, manufacturers need to implement a profile for their specific devices.