Answer / dhinesh

If a class has one abstract method ,the class has to be an
abstract class.
Methods can be implemented in abstract class.


Whereas a interface is like a abstract class...the only
difference being that the methods are never implemented in
Interface.

Answer / basudev pradhan

i) Abstarct is class does not have Body part,it can't create
instance ,but We provide Abstact method and normal
method,the abstarct can be inheritaed by another class,this
can must be implemented by Abstarct method,
ii) Abstarct class can only once inheritaed by Another class
But the interface can implements the More than one interface,
interface only provide Abstarct method ,this method have
does not body part,this class can implements the interface
Define the absract method

Answer / tarunkumar

Abstract class is a class in which it will contain both the
abstract and non-abstract methods.The abstract class must
be inheritable by another class. In vb.net it will be
defined using mustinheritable keyword.
The syntax is :
Public MustInheritable Class classname

Interface is a class in which it will contain only the
abstract methods. The interface can be implemented or not
by the another class.The functions in interface will be
implemented by the another class which implements the
interface.
The syntax is :
Public Interface interfacename

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