September 2019
Intermediate to advanced
462 pages
11h 3m
English
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Creating Interfaces and Abstract Classes
Object-oriented programming is programming with hierarchies of abstractions—complex applications typically have multiple interfaces, abstract classes, and implementation classes. We heavily rely on interfaces to specify behavior of abstractions and use abstract classes to reuse implementations. So learning about interfaces and abstract classes is a good starting point for learning about building object-oriented hierarchies.
In recent years interfaces have dramatically evolved in Java. In the past, interfaces were permitted to carry only method declarations and no implementation: they could tell a lot about what’s possible, but never did anything—kinda like my boss. In recent versions of Java, interfaces ...
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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.