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


From understanding the basic need of types to understanding what a type-class is, we've gone through it all. Along the way, we discussed parametric polymorphism using parametric types and abstract types. With the concept of variance, as well as bounds, we've gone through it all and now it's a bit clearer. For more insights, practice is a must. We can think of scenarios to learn about the concepts. We tried to go through the concepts as they were and look at a few examples, but it'll definitely be fun if you try out some of these on your own. This chapter was the formation or the basis of real Scala programming. Concepts such as type-classes come in very handy when writing effective programs.

In the next chapter, we'll go through concepts such as implicits and the ways we can do exception handling in Scala. And of course, we'll play with type-classes.