April 2003
Intermediate to advanced
304 pages
7h 48m
English
Content preview from Mac OS X for Java GeeksBecome 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,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.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.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.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.
Chapter 5. Apple Extensions
Apple ships a nonstandard JVM with proprietary extensions. There—I’ve said it, and the cat is out of the bag. So why isn’t Apple lumped into the same category as other vendors that ship proprietary JVMs? Why has Apple not been accused of trying to co-opt Java for sinister purposes? Put simply, Apple’s JVM extensions are just that—extensions. They don’t change what Java is, but add additional functionality on top of and around a normal Java environment. Apple ships a complete implementation of not just the Java Runtime Environment (JRE), but a full Java Development Kit (JDK). The extensions just include some icing on the standard Java cake.
Apple’s Java implementation is fully compliant with any Java 2/JDK 1.3/4-based “pure” Java application. Certain vendors ship incomplete JVM implementations for strategically competitive reasons, in opposition to technologies such as RMI and CORBA. Apple’s extensions to Java, however, principally address weaknesses in the Java platform. Careful application development lets you support these extensions while still maintaining excellent cross-platform compatibility. This chapter explores these extensions and shows how they can add to standard Java programs (like the editor from the last chapter).
Note
When comparing Apple’s extensions to the efforts of other vendors (Microsoft in particular), keep the following in mind:
Apple’s extensions are (to the developer) just classes that allow you to more easily access Mac OS ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.