Modern Java · interview question
Why might you choose to use a primitive type over a wrapper class in a performance-sensitive part of your domain model?
Multiple choiceMediumchapter-7-curatedpremiummodern-javacleaner-domain-modeling
Answer and explanation
Correct answer
D. Primitives avoid the overhead of object creation.
Why
Primitive types avoid the overhead associated with object creation and garbage collection, making them more performant in scenarios where high efficiency is crucial.
Test yourself on Modern Java
A free test with instant, explained results. No account needed.
More Modern Java questions
- Given an enum with a method, how can each constant have a different implementation of that method?
- What keyword is used to define a Java Record?
- Which pattern is effectively implemented when using enums to represent singletons?
- How can you iterate over all constants of an enum in Java?
- When designing a domain model, why should you be cautious about using records for classes with business logic?
- How can the use of enums improve the clarity of domain models in Java?