.NET interview questions :- What is the use of private constructor ?

 Posted by articlesmaint on 3/4/2011 | Category: .NET Framework Interview questions | Views: 7406

This is one of those .NET interview question which is asked from the perspective to test if you understand the importance of private constructors in a class.

When we declare a class constructor as private , we can not do 2 things:-

  • We can not create a object of the class.
  • We can not inherit the class.

Now the next question which the interviewer will ask , whats the use of such kind of class which can not be inherited neither instantiated.

Many times we do not want to create instances of certain classes like utility , common routine classes. Rather than calling as shown below


clsCommon common = new clsCommon();

You would like to call it as



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