Answer Posted / max

* An abstract class can have abstract members as well
non abstract members. But in an interface all the members
are implicitly abstract and all the members of the interface
must override to its derived class

* The members of the interface are public with no
implementation. Abstract classes can have protected parts,
static methods, etc.

for more detailed main five difference visit this link

http://codesforprogrammers.blogspot.com/search/label/Abstract%20class%20vs%20Interface

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