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Case Scenario:

You're tasked with designing a system for managing various types of library items such as books, DVDs, and magazines. Each item has common attributes like a title, author/creator, publication year, and unique identification number. However, each item type may have its own specific attributes. For instance, a book may have an ISBN, a DVD may have a duration, and a magazine may have an issue number.

Interface vs Abstract Class:

Interface Approach:

Abstract Class Approach:

Alternatively, you might choose to use an abstract class to encapsulate common behavior and attributes:

You decide to use an interface to define the common behavior for all library items:

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Jessica Biado

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1y ago

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