Book Overview & Buying
Table Of Contents
Feedback & Rating

Scala Programming Projects

By : Valot, Nicolas Jorand

3.8 (5)

Buy this Book

Scala Programming Projects

3.8 (5)

By: Valot, Nicolas Jorand

Buy this Book

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.

Preface

Who this book is for

What this book covers

To get the most out of this book

Get in touch

Free Chapter

Writing Your First Program

Setting up your environment

Using the basic features

Running the Scala Console

Using the Scala Console and Worksheet

Creating my first project

Summary

Developing a Retirement Calculator

Project overview

Calculating the future capital

Calculating when you can retire

Using market rates

Packaging the application

Summary

Handling Errors

Setup

Using exceptions

Ensuring referential transparency

Using Option

Using Either

Using ValidatedNel

Summary

Questions

Further reading

Advanced Features

Project setup

Strictness and laziness

Covariance and contravariance

Currying and partially applied functions

Implicits

Summary

Type Classes

Understanding type classes

Common type classes

Summary

Online Shopping - Persistence

Creating the project

Persistence

Deploying the application

Heroku configuration

Summary

Online Shopping - REST API

The REST API

Implementing the API with persistence

Swagger

Deploying on Heroku

Summary

Online Shopping - User Interface

Learning objectives

Setting up

Defining the layout

Creating the layout

Building the page

Main layout

Product list panel

Cart panel

Introducing the UI manager

Summary

Interactive Browser

Actors

Setting up

Implementing the server side

Implementing the client side

Summary

Fetching and Persisting Bitcoin Market Data

Setting up the project

Understanding Apache Spark

Implementing the transaction batch producer

Summary

Batch and Streaming Analytics

Introduction to Zeppelin

Analyzing transactions with Zeppelin

Introducing Apache Kafka

Streaming transactions to Kafka

Introducing Spark Streaming

Analyzing streaming transactions with Zeppelin

Summary

Other Books You May Enjoy

Leave a review - let other readers know what you think

Customer Reviews

3.8 (5)

5 star

40%

4 star

20%

3 star

20%

2 star

20%

1 star

Developing a Retirement Calculator

In this chapter, we will put into practice the features of the Scala language seen in the first chapter. We will also introduce other elements of the Scala language and SDK to develop the model and logic for a retirement calculator. This calculator will help people work out how long and how much to save to have a comfortable retirement.

We will use the test-driven development (TDD) technique to develop the different functions. I encourage you to try writing the body of the functions yourself before looking at the solution. Also, it would be better to retype the code rather than copy/pasting it. You will remember it more and will have a sense of what it feels like to use IntelliJ's completion and editor. Do abuse the autocompletion with Ctrl + spacebar. You will not only type faster, but you will also discover what functions are...