A collection is used to contain data that is used by the program later in time. In a multithreaded environment, if multiple threads try to access a collection at the same time, this can give you a hard time debugging what went wrong. That is a problem programmers usually face when working with collections in a multithreaded environment. But there's a universal solution for that, which expects you to use an immutable collection. Immutable means you can't change/mutate it. Scala provides you options to choose from: root, mutable, and immutable collections. These three are variants that exist in three separate packages: scala.collection, scala.collection.mutable, and scala.collection.immutable. If you don't specify the collection and use one, it'll be an immutable one by default. But how do these work, exactly? Let&apos...
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Learning Scala Programming
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Learning Scala Programming
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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)
Free Chapter
Getting Started with Scala Programming
Building Blocks of Scala
Shaping our Scala Program
Giving Meaning to Programs with Functions
Getting Familiar with Scala Collections
Object-Oriented Scala Basics
Next Steps in Object-Oriented Scala
More on Functions
Using Powerful Functional Constructs
Advanced Functional Programming
Working with Implicits and Exceptions
Introduction to Akka
Concurrent Programming in Scala
Programming with Reactive Extensions
Testing in Scala
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