Why is returning a raw internal collection dangerous?
Why is encapsulation critical in object-oriented programming?
What design choices promote object responsibility?
What does encapsulation mean in Java?
Why avoid unrestricted setters in Java?
How do invariants contribute to class design?
How can business operations enhance encapsulation?
Why do teams use meaningful update methods in production code?
Why is immutability useful in object design?
How can immutability enhance class design?