An abstract class can have shared state or
functionality.
An interface is only a promise to provide the state or
functionality.
A good abstract class will reduce the amount of code
that has to be rewritten because its functionality or state can be shared. The
interface has no defined information to be shared.
In case of abstract classes we are defining
characteristics of an object type, specifying what an object is but in the case
of an interface we define a capability and we bond to provide that capability,
we are talking about establishing a contract about what the object can do.
No comments:
Post a Comment