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Java: In Java, which comparison about ArrayList vs LinkedList is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about ArrayList vs LinkedList is accurate?

  1. There is no practical difference in behavior, performance, or API design when ArrayList vs LinkedList is involved.
  2. The oldest option related to ArrayList vs LinkedList is always the right production choice regardless of context.
  3. ArrayList trades occasional resize cost for locality, while LinkedList trades memory and cache efficiency for pointer-based updates.
  4. Differences around ArrayList vs LinkedList are mostly cosmetic, so correctness and maintainability do not change.

Hint

Focus on the behavior or tradeoff, not just the keyword.

Answer and rationale

Correct answer: C. ArrayList trades occasional resize cost for locality, while LinkedList trades memory and cache efficiency for pointer-based updates.

ArrayList trades occasional resize cost for locality, while LinkedList trades memory and cache efficiency for pointer-based updates. This is the comparison that usually separates memorization from understanding.

Track: Java