What is the difference between abstract class and interface in .NET?

• Abstract class can have both abstract methods as well as concrete methods. But all interface methods are abstract in nature; they will not have any implementation.




• Abstract classes are meant to be inherited but interface doesn’t involve in inheritance. Interfaces can only be implemented and not inherited.
• A class can inherit from only one abstract class but a class can implement multiple interfaces.
• A class inheriting from an abstract class should override all abstract methods. However it is optional to override the concrete methods. But a class implementing an interface should implement all the interface methods.


Add to My Yahoo!


FREE Subscription

Subscribe to our mailing list and receive new articles
through email. Keep yourself updated with latest
developments in the industry.

Name:
Email:

Note : We never rent, trade, or sell my email lists to
anyone. We assure that your privacy is respected
and protected.

Visit .NET Programming Tutorial Homepage

______________________________________________________

Recommended Resource

| Can you call a constructor from another constructor of the Class in .NET? | Difference between Response.Output.Write() method and Response.Write() method in .NET | How do you establish multiple inheritance in C#? | How do you introduce a ReadOnly property in C#? | How do you perform constructor overloading in C#? | Is catch(Exception) recommended to be used in .NET? | What are the different access modifiers available in C#? | What are the different ways of overloading in C#? | What are the members of stringbuilder class in C#? | What is Multicast Delegate? Explain it with example in C# | What is the difference between abstract class and interface in .NET? | What is the difference between Clone and CopyTo methods in .NET | What is the difference between const and readonly in .NET | What is the difference between directcast and ctype in .NET? | What is the difference between out and ref parameters in .NET | What is the difference between public assembly and private assembly in .NET | What is the difference between strong typing and weak typing in .NET? | What is the difference between Trace and Debug in .NET | What is the need for Abstract Factory Pattern in C#? | What is the need for Adapter Pattern in C# |


| Privacy Policy for www.dotnet-guide.com | Disclosure | Contact |

Copyright - © 2004 - 2018 - All Rights Reserved.