creating a object of class

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C#

how to prevent to creating a object of class without its make abstract class,static class,and private constructor.

Posted 14-Jan-12 6:40am

Roshan Samrit

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CPallini 14-Jan-12 12:52pm

Uhm, Does hiding the source count?

Sergey Alexandrovich Kryukov 14-Jan-12 23:50pm

What, is that an interview question or what? Why doing so?
--SA

Sergey Alexandrovich Kryukov 14-Jan-12 23:57pm

Please do everyone a favor: don't post your questions, comments, etc. using "Add a solution". This kind of post is reserved for answers and solutions. Instead, use "Improve question", add comments, reply to other comments.
--SA

BillWoodruff 15-Jan-12 0:54am

This question just does not make sense to me: what would be the purpose of a Class definition that was never instantiated ?

If you are asking about how to allow the creation of one and only one Class (that is not, obviously, static), then the question you are asking is how to create a "Singleton:" and there are many resources on CP to answer that question.

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-01-14T17:55:00

I can see just one more way to achieve that, a pathological one: define all (non-private) constructors the way they always throw an exception.

I just want to tell that this question is a cheap exercise. It resembles one of those pointless interview questions some like to invent. In my opinion, it has little to do with real knowledge. I would happily work with someone who would not be able to answer this question correctly but show some deep thinking and real understanding of things.

—SA