Book Image

Hands-On Object-Oriented Programming with Kotlin

By : Abid Khan, Igor Kucherenko
Book Image

Hands-On Object-Oriented Programming with Kotlin

By: Abid Khan, Igor Kucherenko

Overview of this book

Kotlin is an object-oriented programming language. The book is based on the latest version of Kotlin. The book provides you with a thorough understanding of programming concepts, object-oriented programming techniques, and design patterns. It includes numerous examples, explanation of concepts and keynotes. Where possible, examples and programming exercises are included. The main purpose of the book is to provide a comprehensive coverage of Kotlin features such as classes, data classes, and inheritance. It also provides a good understanding of design pattern and how Kotlin syntax works with object-oriented techniques. You will also gain familiarity with syntax in this book by writing labeled for loop and when as an expression. An introduction to the advanced concepts such as sealed classes and package level functions and coroutines is provided and we will also learn how these concepts can make the software development easy. Supported libraries for serialization, regular expression and testing are also covered in this book. By the end of the book, you would have learnt building robust and maintainable software with object oriented design patterns in Kotlin.
Table of Contents (14 chapters)

Getting Started with Kotlin

Kotlin's popularity has skyrocketed in recent months due to the fact that it is a simple and concise language that is easy to learn and supports object-oriented and functional programming. Kotlin is a superset of Java that avoids all unwanted Java features, such as verbose, unsafe, and outdated syntax, and includes powerful features from different languages. These features include security, simplicity, and interoperability.

This chapter enables us to acquire knowledge about Kotlin and introduces its basic features and functionality, aiming to get us started as quickly as possible. Before reaching the end of this chapter, we will be familiar with Kotlin's syntax, simplicity, and security features, as well as Kotlin's underlying approach towards object-oriented programming.

The following topics will be covered in this chapter:

  • Kotlin's history
  • Data types and ease of declaration
  • Kotlin's null safety and type casting
  • Flow control and if statements as an expression
  • Loops and labeled loops
  • Functions, functions as an expression, and named parameters