Programming in Scala 1000-2M25SCA

After completing the course, students should be able to use Scala to create simple but practical
applications, such as a web application that accepts user data, saves it, displays it, and allows
for its modification and deletion (other possible examples: a desktop application, an Android
application, a video game). They should know Scala syntax, basic concepts of functional
programming and their implementation in Scala, as well as be able to plan and configure a
Scala project and develop it as a programmer working in a team.
The following topics will be discussed during the classes:
1. Scala syntax: val vs var, immutable vs mutable collections, case class, case object,
companion object, sealed trait, enum, apply and unapply, pattern matching.
2. Main concepts of functional programming: functions as data, immutability, laziness (lazy
evaluation), type system.
3. Main methods for operations on data collections: filter, map, collect, find, collectFirst,
flatMap, fold.
4. Version control system using git as an example. Commands: init, clone, checkout,

branch, commit, push. Resolving conflicts using merge and rebase. Discussion of open-
source licenses, how to write a README, what .gitignore is for, how to do code review,

what GitHub Actions are.
5. Building a web application in Play Framework.
6. Futures, async/await, event streams, actor model, Akka/Pekko.
7. Recursion: tail recursion (tailrec), trampolines. Advanced pattern matching: reminder of
enum and unapply; how to build and manipulate a binary tree.
8. Introduction to the debugger and other IntelliJ IDEA features helpful for refactoring, code
completion, etc.
9. Monads: Theory, error handling using Option/Either/Try, IO monad in Cats Effect.
10. Roadmap for further learning: Discussion of main websites, YouTube channels, etc.
Overview of the main areas of software development and which Scala frameworks and
libraries support them: JSON parsing, ORM, HTTP request handling, build tools, GUI
frameworks, web frameworks, testing.