February 2017
Intermediate to advanced
360 pages
11h 55m
English
Content preview from Kotlin in ActionBecome 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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Chapter 4. Classes, objects, and interfaces
This chapter covers
- Classes and interfaces
- Nontrivial properties and constructors
- Data classes
- Class delegation
- Using the object keyword
This chapter gives you a deeper understanding of working with classes in Kotlin. In chapter 2, you saw the basic syntax for declaring a class. You know how to declare methods and properties, use simple primary constructors (aren’t they nice?), and work with enums. But there’s more to see.
Kotlin’s classes and interfaces differ a bit from their Java counterparts: for example, interfaces can contain property declarations. Unlike in Java, Kotlin’s declarations are final and public by default. In addition, nested classes aren’t inner by default: they don’t contain ...
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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.