An interface can inherit from another interface only and cannot inherit from an abstract class, whereas an abstract class can inherit from another abstract class or another interface.

Jul 11, 2025 · To declare abstract class , we use abstract keyword. To declare interface, we use interface keyword.

Abstract classes and interfaces are semantically different, although their usage can overlap. An abstract class is generally used as a building basis for similar classes. Implementation that is …

Sep 22, 2024 · But when should you use an interface, and when is an abstract class the better option? Understanding the nuances of these two concepts is key to writing flexible, …

Mar 26, 2025 · Learn the key differences between Abstract Classes vs Interfaces in C# with real-world examples, easy explanations, and complete code snippets.

May 21, 2025 · Both abstract classes and interfaces define contracts that enforce method implementation in subclasses, but they differ in structure, capabilities, and intended use cases. …

Generally, when you want to model the is-a relationship and share a common implementation with all the subclasses, you use an abstract class. But when you want to create a contract that …

Nov 17, 2024 · Explore the differences between interfaces and abstract classes in C#, learn when to use each, and understand their role in defining contracts and shared behavior for better …

Aug 7, 2025 · Learn the fundamental differences between interfaces and abstract classes in C#. This article breaks down their key characteristics, use cases, and performance implications …

This tutorial explores the key differences between abstract classes and interfaces in C#, including the use of default interface methods. Understanding these differences is crucial for designing …