juniorScala
What is a Scala case class?
Updated May 24, 2026
Short answer
Case classes are immutable data containers with built-in features.
Deep explanation
They automatically provide equals, hashCode, toString, and pattern matching support, making them ideal for data modeling.
Real-world example
Used for DTOs in APIs.
Common mistakes
- Using case classes for heavy business logic.
Follow-up questions
- Can case classes be mutable?
- Why are they good for pattern matching?