Modern Java · interview question
Why might you choose to implement a 'PhoneNumber' as a value object?
Multiple choiceMediumchapter-7-curatedpremiummodern-javavalue-objects
Answer and explanation
Correct answer
D. To ensure it enforces a specific format and validation.
Why
Implementing 'PhoneNumber' as a value object allows you to encapsulate validation logic and formatting, ensuring that any instance of PhoneNumber is valid according to the business rules. This leads to more reliable and maintainable code.
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