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do u know what is this

visvas ram

Joined: Aug 24, 2005
Posts: 1

i am new to j2me techonology? i dont know any clear idea regarding these things. i am using j2mewireless toolkit 2.2 i have a doubt in following things.

1, what is j2me? can we run these midlet applications in wirelesstollkit only or anyother things are there to run these midlet applications?

2, what is BREW SDK? how it is related with j2me mobile application?

3, what is Symbian Os? what is the relation between these symbian and j2me? whether symbian os and brew have relation?

Mark Spritzler

Joined: Feb 05, 2001
Posts: 17276

Actually those are very good questions.

The Wireless Toolkit is a way to see how your J2ME application is working. it uses an Emulator to emulate a "real" J2ME device. In theory, what runs in the Toolkit should run on any J2ME compliant device. In reality though, some manufacturer's don't quite implement 100% to the spec, which makes the Toolkit a good way to do quick testing, but when it comes down to a real device, it is test there too.

Each phone needs an operating system to run, regardless of J2ME or not. Verizon Wireless phones strictly run the BREW OS. Whereas most others use the Symbian OS. It is kind of like the difference between Windows and UNIX. So with that in mind the J2ME "Sandbox" runs just like the J2SE JRE on Windows or UNIX. It is platform independent.

So the relation between Sybian and BREW is that they are Operating Systems.
J2ME can run on top of both OSs. But Symbian I think is more friendlier and most of those devices already have the JRE installed on them. On most BREW phones, you have to download the JRE to run J2ME MIDlets.


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