Object-oriented programming · interview question
When is an interface usually a better fit than an abstract class?
Multiple choiceMediumchapter-5-curatedpremiumoopinterfaces
Answer and explanation
Correct answer
C. When unrelated types need the same behavior contract without sharing one base state model
Why
Interfaces are useful when different classes need to satisfy the same contract but do not belong in one rigid class hierarchy. They keep callers coupled to behavior instead of one implementation lineage.
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