Difference between abstract class and interface
Answer Posted / wavare santosh
What is an Abstract Class?
An abstract class is a special kind of class that cannot be
instantiated. So the question is why we need a class that
cannot be instantiated? An abstract class is only to be
sub-classed (inherited from). In other words, it only allows
other classes to inherit from it but cannot be instantiated.
The advantage is that it enforces certain hierarchies for
all the subclasses. In simple words, it is a kind of
contract that forces all the subclasses to carry on the same
hierarchies or standards.
What is an Interface?
An interface is not a class. It is an entity that is defined
by the word Interface. An interface has no implementation;
it only has the signature or in other words, just the
definition of the methods without the body. As one of the
similarities to Abstract class, it is a contract that is
used to define hierarchies for all subclasses or it defines
specific set of methods and their arguments. The main
difference between them is that a class can implement more
than one interface but can only inherit from one abstract
class. Since C# doesn�t support multiple inheritance,
interfaces are used to implement multiple inheritance.
Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
Can you explain scriptmanager control?
Can I create my own permission set?
question related to table havi colspan and row span
any one can explain about projectarchitecture and project approach briefly
What is the cli? Is it the same as the clr?
Explain dma? : Dot net architecture
What happens to the winfx technologies?
What is the procedure on hardware that converts the ascii value to binary? : .NET Architecture
what is the difference between master page and content page?
How do I write to the application configuration file at runtime?
How do I stop a thread?
What is a service contract, operation contract and data contract?
Explain about code access security?
4. Wcf- what Asych and Sych call and how that works
How can implement drag and drop using atlas?