Java Interview Questions · interview question

Which practice avoids a common mistake with Generics and Wildcards?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Ignore the Generics and Wildcards issue and rely on team discipline instead of APIs or contracts.Silence the Generics and Wildcards problem by using raw types, broad catches, or shared mutable state.Prefer the version of Generics and Wildcards that makes behavior less predictable as long as the code compiles.Do not use raw types because they hide type mismatches until runtime and weaken the API contract.

Answer and explanation

Correct answer

D. Do not use raw types because they hide type mismatches until runtime and weaken the API contract.

Why

Do not use raw types because they hide type mismatches until runtime and weaken the API contract. This is a common failure mode in real Java code and a frequent interview follow-up.

Test yourself on Java Interview Questions

A free test with instant, explained results. No account needed.

Start free test

All Java Interview Questions questions →

Which practice avoids a common mistake with Generics and Wildcards?

Correct answer

Why

More Java Interview Questions questions