Additional Notes
How would you explain a safer design for handling collections in a class in an interview?
Track: Java
Topic: Core Java
Focus: Code Reading and State Safety
Java: Code Reading and State Safety
Answer
Use unmodifiable views or defensive copying.
Exposing collections directly allows external modifications, breaking encapsulation. A safer design is to return unmodifiable views or create copies of the collection. For example, a `Customer` class might return an unmodifiable list of orders to prevent external changes.
Exposing collections directly allows external modifications, breaking encapsulation. A safer design is to return unmodifiable views or create copies of the collection. For example, a `Customer` class might return an unmodifiable list of orders to prevent external changes.
Topics: Code Reading and State Safety Core Java Java