Java Interview Questions · interview question
When should a Java developer choose String Immutability deliberately?
Multiple choiceMediumjava-interview-2026interviewjavause
Answer and explanation
Correct answer
D. Use immutable strings for identifiers, keys, messages, and values that move across API boundaries.
Why
Use immutable strings for identifiers, keys, messages, and values that move across API boundaries. Interviewers often ask this to see whether you can connect the concept to real design decisions.
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