Mid From PDF GoF Patterns Gang of Four Patterns

Cache Management:?

Short answer: If the number of unique characters or objects grows significantly, the CharacterFactory can implement cache management strategies like LRU (Least Recently Used) or FIFO (First In, First Out) to evict older or unused objects and maintain memory efficiency.

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.
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