Object-oriented programming · interview question
When designing a Java application, what is a potential downside of using inheritance to create a 'PremiumUser' class that extends a 'User' class?
Multiple choiceMediumchapter-5-curatedpremiumoopcomposition-vs-inheritance
Answer and explanation
Correct answer
A. It tightly couples 'PremiumUser' to 'User', making future changes more complex.
Why
Using inheritance creates a tight coupling between 'PremiumUser' and 'User'. This can lead to issues if 'User' changes, as it may inadvertently affect 'PremiumUser', making maintenance and scalability more difficult.
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