Book Image

Learning Scala Programming

By : Vikash Sharma
Book Image

Learning Scala Programming

By: Vikash Sharma

Overview of this book

Scala is a general-purpose programming language that supports both functional and object-oriented programming paradigms. Due to its concise design and versatility, Scala's applications have been extended to a wide variety of fields such as data science and cluster computing. You will learn to write highly scalable, concurrent, and testable programs to meet everyday software requirements. We will begin by understanding the language basics, syntax, core data types, literals, variables, and more. From here you will be introduced to data structures with Scala and you will learn to work with higher-order functions. Scala's powerful collections framework will help you get the best out of immutable data structures and utilize them effectively. You will then be introduced to concepts such as pattern matching, case classes, and functional programming features. From here, you will learn to work with Scala's object-oriented features. Going forward, you will learn about asynchronous and reactive programming with Scala, where you will be introduced to the Akka framework. Finally, you will learn the interoperability of Scala and Java. After reading this book, you'll be well versed with this language and its features, and you will be able to write scalable, concurrent, and reactive programs in Scala.
Table of Contents (21 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Summary


First, we discussed exceptional cases that occur when we try programming. We saw how we handle these exceptional cases in functional programming. We even tried exception handling in functional composition. Then, we began to see the magic that implicits bring in Scala. We discussed implicit parameters and then implicit conversion. We saw the implicitly method, provided by the Scala standard library. Finally, we talked about the already much-talked-about type-classes, and defined/used our first one. Once you practice enough with the concepts that we have discussed, it's worth going through type-classes in detail. Most of the Scala libraries' frameworks heavily use this concept.

In the next chapter, we'll learn about the Akka toolkit. We'll cover Actor System, one of Akka's offerings, and much more.