Book Image

Hands-On Design Patterns with Kotlin

By : Alexey Soshin
Book Image

Hands-On Design Patterns with Kotlin

By: Alexey Soshin

Overview of this book

Design patterns enable you as a developer to speed up the development process by providing you with proven development paradigms. Reusing design patterns helps prevent complex issues that can cause major problems, improves your code base, promotes code reuse, and makes an architecture more robust. The mission of this book is to ease the adoption of design patterns in Kotlin and provide good practices for programmers. The book begins by showing you the practical aspects of smarter coding in Kotlin, explaining the basic Kotlin syntax and the impact of design patterns. From there, the book provides an in-depth explanation of the classical design patterns of creational, structural, and behavioral families, before heading into functional programming. It then takes you through reactive and concurrent patterns, teaching you about using streams, threads, and coroutines to write better code along the way By the end of the book, you will be able to efficiently address common problems faced while developing applications and be comfortable working on scalable and maintainable projects of any size.
Table of Contents (13 chapters)

Prototype

This design pattern is all about customization and creating objects that are similar but slightly different. To understand it better, we'll start with an example.

Building your own PC

Imagine that you have a shop where you sell PCs.

Regular PC consists of the foll:

  • Motherboard
  • CPU
  • Graphical card
  • RAM

Most of your customers don't actually care what components you put in this PC. What they do care about is whether this PC will be able to run Magnificent Pilfering Car 7 at 60fps (which is frame per second).

So, you decide to build it like that:

data class PC(val motherboard: String = "Terasus XZ27",
val cpu: String = "Until Atom K500",
val ram: String = "8GB...