Object-oriented programming · interview question
How can a ShoppingCart notify a user when a product is out of stock?
Multiple choiceMediumchapter-2-curatedpremiumoopobject-interaction
Answer and explanation
Correct answer
D. By integrating a callback or observer pattern.
Why
Using a callback or observer pattern allows ShoppingCart to notify users asynchronously, promoting a decoupled and dynamic interaction design.
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