Dependency Injection · interview question
How does using 'final' with constructor-injected dependencies in Spring Boot help during development?
Multiple choiceMediumchapter-9-curatedpremiumdependency-injectionconstructor-vs-field-injection
Answer and explanation
Correct answer
A. It prevents accidental reassignment of dependencies
Why
Marking dependencies as 'final' in constructor injection prevents them from being reassigned after the object is constructed, reducing the risk of accidental reassignments and thus ensuring safer and more predictable code.
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