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Java: In Java, which comparison about Doubly Linked Lists is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about Doubly Linked Lists is accurate?

  1. It supports easier deletions from a known node than a singly linked list, but it uses more memory and pointer maintenance.
  2. There is no practical difference in behavior, performance, or API design when Doubly Linked Lists is involved.
  3. The oldest option related to Doubly Linked Lists is always the right production choice regardless of context.
  4. Differences around Doubly Linked Lists 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: A. It supports easier deletions from a known node than a singly linked list, but it uses more memory and pointer maintenance.

It supports easier deletions from a known node than a singly linked list, but it uses more memory and pointer maintenance. This is the comparison that usually separates memorization from understanding.

Track: Java