Book Image

Learn Kotlin Programming - Second Edition

By : Stephen Samuel, Stefan Bocutiu
Book Image

Learn Kotlin Programming - Second Edition

By: Stephen Samuel, Stefan Bocutiu

Overview of this book

Kotlin is a general-purpose programming language used for developing cross-platform applications. Complete with a comprehensive introduction and projects covering the full set of Kotlin programming features, this book will take you through the fundamentals of Kotlin and get you up to speed in no time. Learn Kotlin Programming covers the installation, tools, and how to write basic programs in Kotlin. You'll learn how to implement object-oriented programming in Kotlin and easily reuse your program or parts of it. The book explains DSL construction, serialization, null safety aspects, and type parameterization to help you build robust apps. You'll learn how to destructure expressions and write your own. You'll then get to grips with building scalable apps by exploring advanced topics such as testing, concurrency, microservices, coroutines, and Kotlin DSL builders. Furthermore, you'll be introduced to the kotlinx.serialization framework, which is used to persist objects in JSON, Protobuf, and other formats. By the end of this book, you'll be well versed with all the new features in Kotlin and will be able to build robust applications skillfully.
Table of Contents (21 chapters)
Free Chapter
1
Section 1: Fundamental Concepts in Kotlin
5
Section 2: Practical Concepts in Kotlin
15
Section 3: Advanced Concepts in Kotlin

Summary

In this chapter, you have seen how to use the Kotlin collection API in great detail. You have learned how the standard library provides you with the distinction between immutable and mutable collection types, and how immutability is achieved at the interface level. You know now that Kotlin doesn't add a new collection library, but rather builds on the existing Java collections. In addition, you can use arrays extensively because you learned how to use the specific implementations over the generic one when it comes to primitive types.

The Kotlin standard library provides you with the building blocks to express complex computations through a few simple extension methods, hopefully giving you a different perspective when it comes to choosing your next project language.

In Chapter 11, Testing in Kotlin, we will delve into the real-world utilization of Kotlin by introducing...