October 2009
Beginner
432 pages
8h 14m
English
Content preview from Sams Teach Yourself Java™ in 24 Hours, Fifth Edition<feature><title></title>
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Chapter 12. Making the Most of Existing Objects
WHAT YOU’LL LEARN IN THIS HOUR:
Designing superclasses and subclasses
Forming an inheritance hierarchy
Overriding methods
Java objects are ideally suited for childbearing. When you create an object—a set of attributes and behavior—you have designed something that’s ready to pass these qualities on to offspring. These child objects take on a lot of the same attributes and behavior of their parent. They also can do some things differently than their parent.
This system is called inheritance, and it’s something every superclass (parent) gives to its subclasses (children). Inheritance is one of the most useful aspects of object-oriented programming (OOP), and you learn ...
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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.