Additional Notes
What happens if a switch expression misses a subclass in a sealed hierarchy?
Track: Java
Topic: Language Upgrades
Focus: Pattern Matching
Java: Pattern Matching
Answer
You'll get a compile-time error ensuring all cases are handled.
Java's sealed classes ensure that all subclasses are accounted for in switch expressions. If a new subclass is added without updating the switch, it results in a compile-time error, enforcing completeness and reducing runtime bugs.
Java's sealed classes ensure that all subclasses are accounted for in switch expressions. If a new subclass is added without updating the switch, it results in a compile-time error, enforcing completeness and reducing runtime bugs.
Topics: Java Language Upgrades Pattern Matching