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Java: When should a Java developer choose LRU Cache with LinkedHashMap deliberately?

Difficulty:

Medium

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

When should a Java developer choose LRU Cache with LinkedHashMap deliberately?

  1. Choose LRU Cache with LinkedHashMap mainly when you want to postpone validation and fix problems manually later.
  2. Use LinkedHashMap for a simple LRU cache when the capacity is modest and the access policy is straightforward.
  3. Choose LRU Cache with LinkedHashMap whenever you want the code to look more advanced, even if the design gets less clear.
  4. Choose LRU Cache with LinkedHashMap only to avoid modeling domain rules explicitly in Java code.

Hint

Think about the production scenario where the choice genuinely improves the code.

Answer and rationale

Correct answer: B. Use LinkedHashMap for a simple LRU cache when the capacity is modest and the access policy is straightforward.

Use LinkedHashMap for a simple LRU cache when the capacity is modest and the access policy is straightforward. Interviewers often ask this to see whether you can connect the concept to real design decisions.

Track: Java