Simplified Client Code: ○ The client code doesn't need to know the internal implementation of the collection (e.g., whether it's a list or a tree). It can use the iterator interface to

Short answer: ccess the elements sequentially, leading to cleaner and more maintainable code.

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.