Additional Notes
Can records have custom constructors?
Track: Java
Topic: Modern Java
Focus: Records
Java: Records
Answer
Yes, records can have custom constructors.
You can define a custom constructor in a record to add validation or preprocessing. However, it must delegate to the canonical constructor. For example, in a `Temperature` record, you can validate input: `record Temperature(double value) { Temperature { if (value < -273.15) throw new IllegalArgumentException(); } }`.
You can define a custom constructor in a record to add validation or preprocessing. However, it must delegate to the canonical constructor. For example, in a `Temperature` record, you can validate input: `record Temperature(double value) { Temperature { if (value < -273.15) throw new IllegalArgumentException(); } }`.
Topics: Java Modern Java Records