Object-oriented programming · interview question
In a Java e-commerce application, which design decision supports encapsulation when managing quantities of CartItems?
Multiple choiceHardchapter-3-curatedpremiumoopobject-responsibility
Answer and explanation
Correct answer
A. Keeping quantity changes within the CartItem class
Why
The CartItem class should manage its own quantity changes to ensure encapsulation and maintain control over its state. This prevents other classes from modifying its state directly, which could lead to inconsistencies.
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