June 2002
Intermediate to advanced
504 pages
10h 10m
English
Content preview from Java™ 2 Micro Edition Application DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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J2ME Configurations and Profiles
Obviously, the standard Java libraries are just too big for the Java 2 Micro Edition. Once the KVM was available, the next logical step was to define appropriate libraries. But just downsizing the standard libraries was not sufficient: The target devices have many special requirements that also must be covered by libraries.
For example, many PDAs and all cellular phones do not have a file system. Instead, data is stored persistently in simple databases in buffered RAM or flash memory. Obviously, a KVM library would need to provide access to this kind of storage. Moreover, the specific needs diverge for the potential KVM devices. A set top box (a device that decodes interactive TV signals) does not have much in ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.