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Scala Programming Projects

Scala Programming Projects

By : Valot, Nicolas Jorand
3.8 (5)
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Scala Programming Projects

Scala Programming Projects

3.8 (5)
By: Valot, Nicolas Jorand

Overview of this book

Scala Programming Projects is a comprehensive project-based introduction for those who are new to Scala. Complete with step-by-step instructions and easy-to-follow tutorials that demonstrate best practices when building applications, this Scala book will have you building real-world projects in no time. Starting with the fundamentals of software development, you’ll begin with simple projects, such as developing a financial independence calculator, and then advance to more complex projects, such as a building a shopping application and a Bitcoin transaction analyzer. You’ll explore a variety of Scala features, including its OOP and FP capabilities, and learn how to write concise, reactive, and concurrent applications in a type-safe manner. You’ll also understand how to use libraries such as Akka and Play. Furthermore, you’ll be able to integrate your Scala apps with Kafka, Spark, and Zeppelin, along with deploying applications on a cloud platform. By the end of the book, you’ll have a firm foundation in Java programming that’ll enable you to solve a variety of real-world problems, and you’ll have built impressive projects to add to your professional portfolio.
Table of Contents (13 chapters)
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Using market rates

In our calculations, we have always assumed that the interest rate of return was constant, but the reality is more complex. It would be more accurate to use real rates from market data to gain more confidence with our retirement plan. For this, we first need to change our code to be able to perform the same calculations using variable interest rates. Then, we will load real market data to simulate regular investments in a fund by tracking the S & P 500 index.

Defining an algebraic data type

In order to support variable rates, we need to change the signature of all functions that accept interestRate: Double. Instead of a double, we need a type that can represent either a constant rate or a sequence of...

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