Scala · Unit 1

Writing Your First Scala 3 Application

Build a complete first Scala 3 application with sbt, @main, immutable case classes, validation with Either, pure business logic, formatted output, MUnit tests, packaging, and clean responsibility boundaries.

About this lesson

Build a complete first Scala 3 application with sbt, @main, immutable case classes, validation with Either, pure business logic, formatted output, MUnit tests, packaging, and clean responsibility boundaries.

Part of Getting Started with Scala 3

This lesson belongs to a structured unit with 9 lessons, guided practice, checkpoints, and a reviewed assessment pathway.