# sealed-classes
2 posts
Java 21 — Record Patterns & Sealed Classes in Practice
Use Java 21's record patterns and sealed classes together — destructuring records in switch, nested patterns, and building type-safe domain models.
Java
Kotlin Sealed Classes & When Expressions — Modeling State
Learn how Kotlin sealed classes and when expressions work together to model state, handle API responses, and eliminate impossible states in your code.
Kotlin