Core Java · interview question
Which refactoring step can help convert a setter-heavy design to a safer design pattern?
Multiple choiceHardchapter-3-curatedpremiumcore-javacode-reading-and-state-safety
Answer and explanation
Correct answer
D. Use constructor injection to set all necessary fields
Why
Constructor injection ensures that all necessary fields are initialized at object creation time, reducing the need for setters and increasing safety by maintaining invariants.
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