June 2004
Intermediate to advanced
848 pages
21h 28m
English
Content preview from Just Java™ 2
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Packages
There are several keywords that control the visibility of a class or the members of a class. Access Modifiers on page 103 summarizes these modifiers (private, no keyword, protected, and public). Some of these access modifiers apply to packages, so we'll start with the “how and why” of Java packages.
What a package is
When you're just writing a few programs for your personal use, you can put the classes in any old directory and use any old names. When you have a team of twenty programmers working on five different software products that interact, you need a better way to organize your files than “putting them in any old directory.”
Java uses the term package to mean a collection of related classes that form a library, and which ...
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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.