Book Image

Mastering Kotlin

By : Nate Ebel
Book Image

Mastering Kotlin

By: Nate Ebel

Overview of this book

Using Kotlin without taking advantage of its power and interoperability is like owning a sports car and never taking it out of the garage. While documentation and introductory resources can help you learn the basics of Kotlin, the fact that it’s a new language means that there are limited learning resources and code bases available in comparison to Java and other established languages. This Kotlin book will show you how to leverage software designs and concepts that have made Java the most dominant enterprise programming language. You’ll understand how Kotlin is a modern approach to object-oriented programming (OOP). This book will take you through the vast array of features that Kotlin provides over other languages. These features include seamless interoperability with Java, efficient syntax, built-in functional programming constructs, and support for creating your own DSL. Finally, you will gain an understanding of implementing practical design patterns and best practices to help you master the Kotlin language. By the end of the book, you'll have obtained an advanced understanding of Kotlin in order to be able to build production-grade applications.
Table of Contents (25 chapters)
Free Chapter
1
Section 1: Kotlin – A Modern Solution to Application Development
4
Section 2: Putting the Pieces Together – Modeling Data, Managing State, and Application Architecture
8
Section 3: Play Nice – Integrating Kotlin With Existing Code
13
Section 4: Go Beyond – Exploring Advanced and Experimental Language Features
17
Section 5: The Wide World of Kotlin – Using Kotlin across the Entire Development Stack

Converting Java into Kotlin

Perhaps the easiest example, and one of the most interesting, of interoperability between Java and Kotlin is the ability to quickly convert Java code into Kotlin code with a single IDE command. Technically, this is more of a feature of the IDE, but as powerful tooling is an important aspect of the viability of a language, it's worth exploring how this conversion process works.

By converting existing Java code in this way, you can help to do the following:

  • Introduce Kotlin into a Java code base in places where existing tests can validate no regressions
  • Understand common Kotlin features and idioms by comparing them to Java code you already understand
  • Allow developers to quickly start using Kotlin without a steep learning curve

All of these traits can make the Kotlin learning and adoption process much easier and more enjoyable. In this section,...