Multithreading Considerations:?

Short answer: When using the Flyweight pattern in a multithreaded environment, care should be taken to ensure thread safety. The flyweight factory could use a concurrent dictionary or apply locking mechanisms to prevent concurrent access to the shared flyweight objects.

Real-world example (ShopNest)

Use a GoF pattern in ShopNest only when it removes duplication or makes a change safer—explain the problem it solves in the interview.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.