Programming Kotlin

Przednia okładka
Packt Publishing Ltd, 18 sty 2017 - 420
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Familiarize yourself with all of Kotlin's features with this in-depth guide

About This BookGet a thorough introduction to KotlinLearn to use Java code alongside Kotlin without any hiccupsGet a complete overview of null safety, Generics, and many more interesting featuresWho This Book Is For

The book is for existing Java developers who want to learn more about an alternative JVM language. If you want to see what Kotlin has to offer, this book is ideal for you.

What You Will LearnUse new features to write structured and readable object-oriented codeFind out how to use lambdas and higher order functions to write clean, reusable, and simple codeWrite unit tests and integrate Kotlin tests with Java code in a transitioning code baseWrite real-world production code in Kotlin in the style of microservicesLeverage Kotlin's extensions to the Java collections libraryUse destructuring expressions and find out how to write your ownWrite code that avoids null pointer errors and see how Java-nullable code can integrate with features in a Kotlin codebaseDiscover how to write functions in Kotlin, see the new features available, and extend existing librariesLearn to write an algebraic data types and figure out when they should be usedIn Detail

Kotlin has been making waves ever since it was open sourced by JetBrains in 2011; it has been praised by developers across the world and is already being adopted by companies. This book provides a detailed introduction to Kotlin that shows you all its features and will enable you to write Kotlin code to production.

We start with the basics: get you familiar with running Kotlin code, setting up, tools, and instructions that you can use to write basic programs. Next, we cover object oriented code: functions, lambdas, and properties – all while using Kotlin's new features.

Then, we move on to null safety aspects and type parameterization. We show you how to destructure expressions and even write your own. We also take you through important topics like testing, concurrency, microservices, and a whole lot more. By the end of this book you will be able to compose different services and build your own applications.

Style and approach

An easy to follow guide that covers the full set of features in Kotlin programming.

 

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Spis treści

Preface
1
Getting Started with Kotlin
7
Kotlin Basics
30
ObjectOriented Programming in Kotlin
55
Functions in Kotlin
93
Higher Order Functions and Functional Programming
138
Properties
178
Null Safety Reflection and Annotations
201
Generics
229
Data Classes
259
Collections
277
Testing in Kotlin
312
Microservices with Kotlin
336
Concurrency
361
Index
391
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Informacje o autorze (2017)

Stephen Samuel is an accomplished developer with over 17 years of experience. He has worked with Java throughout his career, and in the past 5 years has focused on Scala. He has a passion for concurrency and Big Data technologies. Having spent the last few years in investment banking, he is currently working with Kotlin on a major Big Data ingestment project. Stephen is also active in the open source community, being the author of several high profile Scala and Kotlin libraries.

Stefan Bocutiu is a Big Data consultant with over 13 years of experience in software development. He enjoys coding in Scala, C#, and has a passion for stream processing technologies. With the team at DataMountaineer--a consultancy company offering delivery of solutions for streaming/ fast data platforms - he focuses on providing scalable, unified, real-time data pipelines allowing reactive decision making, analytics, and Hadoop integration. Stefan is passionate about motorsports, and while his racing skills are not good enough to allow him to compete, he tries to attend as many MotoGP races as possible. When he is not coding, he can be found at the climbing wall or at the gym. Occasionally, hiking and scrambling trips are on his calendar, and during the winter season, skiing trips are a must for him.

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