Object-oriented programming · interview question
How can defensive copying help in protecting internal state of a class?
Multiple choiceMediumchapter-3-curatedpremiumoopdefensive-copying
Answer and explanation
Correct answer
A. By returning a copy of mutable objects instead of the original
Why
Defensive copying involves creating a copy of a mutable object and returning that copy instead of the original. This prevents clients from modifying the internal state of the class.
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