Answer Posted / sudhir sheoran

Singleton design pattern can be achieved by following implementation:

1) Make class public

2) Static method to generate the instance of class(calling this method we can get the instance of a class if already a instance is generated we will get the same instance)

3) Private Constructor (so that no other class can generate the instance of singleton class)

Example::

class Class1
{
private static Class1 classInstance;
private IList<int> list = new List<int>();
private Class1()
{
if (list == null)
{
list = new List<int>();
}

}

public static void GetInstance()
{
if (classInstance == null)
{
classInstance = new Class1();
}

}
}

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