Private Construct in C#

A private constructor is a special instance constructor. It is commonly used in classes that contain static members only. If a class has one or more private constructors and no public constructors, then other classes (except nested classes) are not allowed to create instances of this class. 

For example:

public class Customer

    {

        private Customer()

        {

        }

        public static string getCustomerName()

        {

            return "Hello World";

        }

    }

Access this getCustomerName() Function

class AccessCustomer

{

    static void Main()

    {

string a;

a = Customer.getCustomerName();

System.Console.WriteLine("Customer Private Constructor: {0}",a);

    }

}

OUTPUT

Hello World

• you can not inherit the class or you can not create a object of class which has private constructor.

• which condition use private constructor

• Many time we do not want to create instance of certain classes like utility, common routine of classes.

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