Java 2 Micro Edition be subset from j2SE that attributed for implementation in device embeded system and handled doesn’t can to support fully implementation uses J2SE. Embeded system is products with little computer built in, but application that can be maked use from that device very specific. J2ME prepare optimal environment runtime to embeded system, like: pager, handphone, PDA, 3G Handset, webphone, iTV, car navigation system, and building security system. J2ME used in ware that has small memory.

Like application Java in general that use JVM, in J2ME used also Java Virtual Machine that called K Virtual Machine. K Virtual Machine is very small Virtual Machine in the memory need. Font K here abbreviation from kilobyte. This K Virtual Machine walk in memory 128 up to 512 kilobyte.

Base Midlet
Midlet is application that made use Java 2 Micro Edition with profile Mobile Information Device Profile (MIDP). MIDP especially to be used in handset ably cpu, memory, keyboard, and limited sail. In general there are several important things in make a MIDLET applications, that is concern life cycle, interfaces user, command handling, deployment and application management.

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