What is an Interface and What is an Abstract Class?

Question Posted / akn

3 Answers
8664 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What is an Interface and What is an Abstract Class?..

Answer / meraj khan

Abstract class:
Abstract class act as base class, not instantiable, no
implementaiotn in base class but allow implementaiotn in
derived class with overide method, method must be abstract.
specially used in inheritance.

Interface:

Interface class dont have constructor, destructor,
always public modifier set to true
no implementation
cant used multiple inheritance instead of this we use
multiple interface

Is This Answer Correct ?

6 Yes

1 No

What is an Interface and What is an Abstract Class?..

Answer / lalit

An abstract class is a parent class that allows inheritance
but can never be instantiated

Abstract classes are the classes with no implementation of
methods or concerete implementation of methods

An Interface can inherit several interfaces.

Is This Answer Correct ?

2 Yes

3 No

What is an Interface and What is an Abstract Class?..

Answer / manoj kumar tripathi

We can not create object of abstract class.It is base class
which inherit by other class.we can give at least one
definition in the class.It support inheritance.

Is This Answer Correct ?

0 Yes

3 No

Post New Answer

More ASP.NET Interview Questions

What is the difference between an htmlinputcheckbox control and an htmlinputradiobutton control?

0 Answers

What is the difference between “Web.config” and “Machine.Config”?

0 Answers

What is server objects in asp.net?

5 Answers

What is the state management in asp.net?

0 Answers

Can two web application share a session and application variable ?

5 Answers Satyam, V3 Engineers,

what is machine key error in asp.net? how to solve it?

1 Answers

What is a Managed Data?

4 Answers HCL,

What is a Metadata?

3 Answers

If I'm developing an application that must accommodate multiple security levels though secure login and my ASP.NET web application is spanned across three web-servers (using round-robin load balancing) what would be the best approach to maintain login-in state for the users?

7 Answers Syntax Softtech,

i have a register form & in that form i have a 2 textboxes for entering name&age.my doubt is that how can i provide error message like "invalid entry" when user enter a invalid name/age(eg:user enter name as #%%%##daff,and age as 1000.)in that textboxes.I want code.

3 Answers

What is the difference between Webservice and WCF

9 Answers IBM, ITC Infotech,

Explain what a diffgram is, and a good use for one?

2 Answers

For more ASP.NET Interview Questions Click Here