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What deeper point about Immutable Class Design should a senior Java developer mention?

Multiple choiceHardjava-interview-2026interviewjavaadvanced

At senior level, any approach to Immutable Class Design is equally correct if it compiles and passes a small test.At senior level, the right answer is that Immutable Class Design exists mostly for historical syntax reasons.True immutability combines final fields, early validation, and protection of nested mutable state rather than only hiding setters.At senior level, the JVM removes the tradeoffs around Immutable Class Design, so design choices barely matter.

Answer and explanation

Correct answer

C. True immutability combines final fields, early validation, and protection of nested mutable state rather than only hiding setters.

Why

True immutability combines final fields, early validation, and protection of nested mutable state rather than only hiding setters. This is the kind of tradeoff-aware answer senior interviews usually expect.

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What deeper point about Immutable Class Design should a senior Java developer mention?

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