Java Interview Questions · interview question

Which practice avoids a common mistake with Doubly Linked Lists?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Do not update only one side of the links during insert or delete operations, because partial rewiring corrupts the structure.Prefer the version of Doubly Linked Lists that makes behavior less predictable as long as the code compiles.Ignore the Doubly Linked Lists issue and rely on team discipline instead of APIs or contracts.Silence the Doubly Linked Lists problem by using raw types, broad catches, or shared mutable state.

Answer and explanation

Correct answer

A. Do not update only one side of the links during insert or delete operations, because partial rewiring corrupts the structure.

Why

Do not update only one side of the links during insert or delete operations, because partial rewiring corrupts the structure. This is a common failure mode in real Java code and a frequent interview follow-up.

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Which practice avoids a common mistake with Doubly Linked Lists?

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