Book Image

Kotlin Quick Start Guide

By : Marko Devcic
Book Image

Kotlin Quick Start Guide

By: Marko Devcic

Overview of this book

Kotlin is a general purpose, object-oriented language that primarily targets the JVM and Android. Intended as a better alternative to Java, its main goals are high interoperability with Java and increased developer productivity. Kotlin is still a new language and this book will help you to learn the core Kotlin features and get you ready for developing applications with Kotlin. This book covers Kotlin features in detail and explains them with practical code examples.You will learn how to set up the environment and take your frst steps with Kotlin and its syntax. We will cover the basics of the language, including functions, variables, and basic data types. With the basics covered, the next chapters show how functions are first-class citizens in Kotlin and deal with the object-oriented side of Kotlin. You will move on to more advanced features of Kotlin. You will explore Kotlin's Standard Library and learn how to work with the Collections API. The book finishes by putting Kotlin in to practice, showing how to build a desktop app. By the end of this book, you will be confident enough to use Kotlin for your next project.
Table of Contents (15 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Chapter 6. Kotlin Standard Library

The Kotlin standard library is another feature of the language that makes it nicer to use in the daily programmer life. The library builds heavily on the Java standard library, in fact, it doesn't add many new types, rather, it adds new functionality with functions. It offers extensions functions that extend the Java standard library types or utility functions that can be used with any type.

We've already seen a lot of types and functions from the standard library (arrays, basic types, and more), and, in this chapter, we'll first learn about collections and see the most useful functions for working with collections. Then we'll take a look at the standard library functions.

In this chapter we will cover these topics : 

  • Collections
  • Working with collections
  • Kotlin standard library functions