Object-oriented programming · interview question
Consider an e-commerce application where you need to process different types of payments. How can interfaces help in designing the payment system?
Multiple choiceMediumchapter-5-curatedpremiumoopinterfaces
Answer and explanation
Correct answer
D. Interfaces can define a contract for payment processing methods.
Why
Interfaces define a contract by specifying methods that must be implemented by any class that uses the interface, allowing different payment types to be processed uniformly.
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