Answer Posted / amit sinha

a) Interface force class to implement all methods and
function for implement while as Abstarct class does not
force class , you can override method and fuction of base
class .
b) Interface contains method and function without
implemention with signature only while as Abstract class
contains method , function with implemention and signature
c) By default , method ,function and members is public in
nature within interface , while as In Abstract class ,
memebers can be protected as well private etc..
d) Interface supports Multiple inheritance while as
Abstract class does not support Multiple Inheritance
e)Abstract classes are faster than interfaces
f)you can prevent not required method to override in
Abstract class , but not in Interface

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