January 2018
Intermediate to advanced
434 pages
14h 1m
English
Content preview from Kotlin Programming Cookbook
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Writing your own delegates
Delegated properties are one of the best features of Kotlin language. We have already seen observable and vetoable delegates. In this recipe, we will learn how to create our own custom delegate. As a demo example, we will create a delegate property that can only be initialized once; if done again, it should throw an exception. So let's dive into it and see how we can achieve it.
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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.