How does VB.NET/C# achieve polymorphism?
- 6 Answers
- 7944 Views
- Siebel Systems, I also Faced
- E-Mail Answers
Answer Posted / deep
Polymorphism is also achieved through interfaces. Like abstract classes, interfaces also describe the methods that a class needs to implement. The difference between abstract classes and interfaces is that abstract classes always act as a base class of the related classes in the class hierarchy. For example, consider a hierarchy-car and truck classes derived from four-wheeler class; the classes two-wheeler and four-wheeler derived from an abstract class vehicle. So, the class 'vehicle' is the base class in the class hierarchy. On the other hand dissimilar classes can implement one interface. For example, there is an interface that compares two objects. This interface can be implemented by the classes like box, person and string, which are unrelated to each other.
C# allows multiple interface inheritance. It means that a class can implement more than one interface. The methods declared in an interface are implicitly abstract. If a class implements an interface, it becomes mandatory for the class to override all the methods declared in the interface, otherwise the derived class would become abstract.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the main advantages of using asp.net?
How can we use Web API with ASP.NET Web Form?
Is asp.net and .net same?
What is rich control in asp.net?
What is the difference between exe and dll?
What is globalization and localization in asp net?
What are early binding and late binding.
How can we prevent browser from caching an aspx page?
What is difference between viewstate and session in asp net?
What is the caspol.exe tool used for?
What is sql data source control in asp.net?
Explain the difference between response.redirect vs server.transfer
What is data reader in asp.net?
what are configuration files?
What is the difference between stored procedure vs function?
