Object-oriented programming · interview question
Consider a class with a private list of items in a shopping cart. What is a safe way to allow external classes to view these items?
Multiple choiceMediumchapter-3-curatedpremiumoopencapsulation
Answer and explanation
Correct answer
A. Provide a public method that returns a copy of the list
Why
Returning a copy of the list preserves encapsulation by preventing external modification of the original list, maintaining the integrity of the cart's contents.
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