Spring Core · interview question
Why is constructor injection preferred over field injection in Spring?
Multiple choiceMediumchapter-9-curatedpremiumspring-coreinversion-of-control-ioc
Answer and explanation
Correct answer
A. It ensures all dependencies are immutable and available at creation time.
Why
Constructor injection is preferred because it ensures that all dependencies are provided upon object creation, making them immutable and easily testable. This approach also supports better encapsulation and facilitates easier testing by enforcing dependency availability.
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