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Java: Which practice avoids a common mistake with Linked List Reversal?

Difficulty:

Medium

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which practice avoids a common mistake with Linked List Reversal?

  1. Ignore the Linked List Reversal issue and rely on team discipline instead of APIs or contracts.
  2. Silence the Linked List Reversal problem by using raw types, broad catches, or shared mutable state.
  3. Prefer the version of Linked List Reversal that makes behavior less predictable as long as the code compiles.
  4. Do not overwrite the next pointer before saving it, because that loses the remainder of the list.

Hint

Look for the option that protects correctness instead of hiding the problem.

Answer and rationale

Correct answer: D. Do not overwrite the next pointer before saving it, because that loses the remainder of the list.

Do not overwrite the next pointer before saving it, because that loses the remainder of the list. This is a common failure mode in real Java code and a frequent interview follow-up.

Track: Java