Object-oriented programming · interview question
Why should a CartItem class have a reference to a Product rather than duplicating product details?
Multiple choiceMediumchapter-3-curatedpremiumoopobject-responsibility
Answer and explanation
Correct answer
B. To ensure data consistency
Why
By referencing a Product, a CartItem ensures data consistency, as any changes to the Product details are automatically reflected in all CartItems. It prevents data duplication and reduces the risk of inconsistencies.
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