Introduction to Scala

Course details

Scala has become an increasingly popular programming language ever since it was publicly released in 2004. Designed in part to improve on some of the weaknesses of Java, Scala requires less code and supports both object-oriented programming and functional programming. And while Scala and Java are interoperable, you don’t need any knowledge of Java to run Scala. This course with Amina Adewusi is aimed at programming beginners who have only basic programming experience. Amina provides a broad and friendly introduction to some of Scala’s features that will set a foundation for more advanced lessons. She details everything you need to write Scala code and run it locally; examines values and types, functions, and control flows; looks at domain modeling; and explores Scala’s collection types. If you’re just starting on your programming journey, join Amina to see if Scala is right for you.

Concepts

Introduction

Get functional with Scala 3
What you should know
Big picture - What is Scala
Install IntelliJ for Mac
Install Scala on a Mac
Install IntelliJ for Windows
Install Scala on Windows
Use the exercise files
Verify your installation

Our First Scala Project

Create a new Scala project
Understand the basic structure of a Scala project
Challenge - Hello world
Solution - Hello world

First Scala Function

Values and types
How to define a function
Challenge - Greeting
Solution - Greeting

Control Structures

If-else statements
Pattern matching
Challenge - Print the numbers of multiples
Solution - Print the numbers of multiples

Collections

Case classes
Enums
Enums with parameters
Challenge - Class and enums
Solution - Class and enums

Options

Introduction to options
The map function
Flat map
For comprehensions
Challenge - Options
Solution - Options

Lists

Introduction to lists
The map function on lists
Flat map on lists
For comprehensions on lists
Challenge - Lists
Solution - Lists

Conclusion

Next steps