Additional Notes
What happens if you forget to update a switch expression when adding a subclass?
Track: Java
Topic: Language Upgrades
Focus: Pattern Matching
Java: Pattern Matching
Answer
It may lead to compile-time errors if the class is sealed.
When using sealed classes, Java enforces exhaustiveness checks in switch statements. If you add a new subclass and don't handle it in your switch, it results in a compile-time error, forcing you to handle all cases. This ensures robustness in evolving systems.
When using sealed classes, Java enforces exhaustiveness checks in switch statements. If you add a new subclass and don't handle it in your switch, it results in a compile-time error, forcing you to handle all cases. This ensures robustness in evolving systems.
Topics: Java Language Upgrades Pattern Matching