Java Interview Questions · interview question

Which practice avoids a common mistake with Type Erasure?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Do not expect List<String> and List<Integer> to be different runtime classes just because the source types look different.Ignore the Type Erasure issue and rely on team discipline instead of APIs or contracts.Prefer the version of Type Erasure that makes behavior less predictable as long as the code compiles.Silence the Type Erasure problem by using raw types, broad catches, or shared mutable state.

Answer and explanation

Correct answer

A. Do not expect List<String> and List<Integer> to be different runtime classes just because the source types look different.

Why

Do not expect List<String> and List<Integer> to be different runtime classes just because the source types look different. 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 Type Erasure?

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