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J2ME - highlevel overview

Kevin P Smith
Ranch Hand

Joined: Feb 18, 2005
Posts: 362
This is a very open question really for anyone that would care to share a little of their experience of J2Me with me.

Looking at a possible Java Mobile developer role and I'd like to know a few things about J2ME development...

Mainly I'm looking at things like:
- What IS NOT in J2ME that is in say J2SE? From what I can see Collections seem to be gone presumably because of the limitations in memory
- What IS in J2ME
- Does it differ much from standard J2SE/J2EE development or is it basically the same just for mobile technologies?

Anything really to give me an idea of what a J2ME developer's world is like

:-D

Cheers

KS
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19651
    
  18

Let's move this to our mobile forum.


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Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15952
    
  19

The full roster would be too long to cover here. It's not just missing classes - there are methods even in basic classes like java.lang.String that are simplified or omitted in J2ME. And, of course, neither AWT nor Swing is available. Instead there's the lcdui. But in addition to differences between J2ME and JRE, you have the differences between the CDC and the CLDC. http://java.sun.com/javame/index.jsp

The correspondence is good enough for the most part that I just develop like it was for a JRE (UI notwithstanding), and when I run into something not supported, I look for alternatives.

One significant difference is in how you package. But that's covered in the kit from Sun.


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