Core Java · interview question
How would you explain a common technique to achieve immutability in a Java class in an interview?
Multiple choiceEasychapter-3-curatedpremiumcore-javacode-reading-and-state-safety
Answer and explanation
Correct answer
C. Declare all fields as final and private.
Why
Declaring all fields as final and private ensures that they are initialized once and cannot be changed, which is a fundamental practice for achieving immutability in a class.
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