13-08-2012, 12:33 PM
Java 2, micro Edition
micro Edition.pptx (Size: 437.57 KB / Downloads: 20)
J2ME:
J2ME: Java 2 Platform, Micro Edition
“Java for devices having limited memory & cpu power”.
Developers create applications & programs for smaller & wireless devices like mobile phones.
Its a popular option for creating games for cell phones because it can be easily uploaded to the phone.
J2MEroperties
Flexible user interface
Robust security
Built-in network protocols
Portable
Support networked & offline application that can be downloaded dynamically.
Characteristics of device implementing cdc
Connected device configuration is
used for large devices like set top box having
512 kilobytes (minimum) memory for running Java programs
256 kilobytes (minimum) for run time memory allocation
Network connectivity, possibly persistent, and high-bandwidth
MIDlet
MIDP applications are called MIDlets
Every MIDlet is instance of javax.microedition.midlet.MIDlet
No argument constructor
Implements lifecycle methods
Conceptually similar to Applets
Can be downloaded
Executed in host environment
Running remotely deployed application
To see whether your application deployed correctly, open an ordinary web browser and enter the JAD file's URL. The J2ME Wireless Toolkit's default emulator should appear and the remotely deployed application should run in it.
J2ME enabled devices include Java Application Manager (JAM) responsible for downloading, installing, and configuring applications