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Java: In Java, which comparison about HashMap Internals is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about HashMap Internals is accurate?

  1. There is no practical difference in behavior, performance, or API design when HashMap Internals is involved.
  2. The oldest option related to HashMap Internals is always the right production choice regardless of context.
  3. Differences around HashMap Internals are mostly cosmetic, so correctness and maintainability do not change.
  4. hashCode decides where to look first, while equals determines whether two keys are logically the same.

Hint

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

Answer and rationale

Correct answer: D. hashCode decides where to look first, while equals determines whether two keys are logically the same.

hashCode decides where to look first, while equals determines whether two keys are logically the same. This is the comparison that usually separates memorization from understanding.

Track: Java