When it is useful to use extension methods? Question 21 options: a) All the answers are correct b) when extending functionalities of an interface type c) When extending functionalities of classes that can't be inherited from (e.g. sealed classes) d) when extending functionalities of a third party library that we don't have access to the source code

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useful to use extension methods?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

When it is useful to use extension methods?

Question 21 options:

a)	All the answers are correct

b)	when extending functionalities of an interface type

c)	When extending functionalities of classes that can't be inherited from (e.g. sealed classes)

d)	when extending functionalities of a third party library that we don't have access to the source code

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