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Learning Scala Programming

Learning Scala Programming

By : Sharma
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Learning Scala Programming

Learning Scala Programming

2 (3)
By: 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 (16 chapters)
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Classes

To understand classes in Scala, let's make it clear that classes don't just do one thing for us. Classes work as a container for members in our programs, and as in any other object-oriented language, we can create instances of our class constructs and reuse them. By members we mean the variables and methods defined within. Why not take a look at a simple Scala class?

class Country(var name: String, var capital: String) 

Yes, the preceding code is a class that we defined named Country. It has two members named name and capital. Let's create a new country instance and print its values:

object CountryApp extends App { 
  val country = new Country("France", "Paris") 
  println(s"Country Name: ${country.name} and Capital: ${country.capital}") 
} 

On running the preceding code, we get the following result:

Country Name: France and...

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