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Inheritance - Programming

Q1:

How can you prevent inheritance from a class in C#.NET ?

A Declare the class as shadows.

B Declare the class as overloads.

C Declare the class as sealed.

D Declare the class as suppress.

E Declare the class as override.

ANS:C - Declare the class as sealed.

C#.NET allows sealed attribute to be used as a part of class statement. Classes declared with sealed keyword cannot be used as based class for other classes. Most important reason to do this world be to prevent behavior of a class to be changed in any way.