Class Vs. SingletonClass

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Hi All,

How normal class is different from Singleton class?
There is a scenario which i was asked by an interviewer.......

How will you convert normal class into a singleton class......!!!!

I have used Singleton Class in my project but i could not find any difference between normal class and singleton.

Could any one help me on this.

Thanks in advance.

Posted 25-Sep-13 20:14pm

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OriginalGriff · Accepted Answer · 2013-09-25T20:40:00

The biggest difference (indeed in code terms pretty much the only difference) is that a Singleton class does not have a public constructor: you have to go via the class GetInstance method (or similar) in order to create an instance as the outside world is not allowed to use:

C#

MySingletonClass msc = new MySingletonClass();

It must use

C#

MySingletonClass msc = MySingletonClass.GetInstance();

Which ensures that there is only ever one instance of the class.