static void Main(string[] args)
{
Program1 obj = new Program1();
obj.Test1();
obj.Test2();
Console.ReadKey();
}
static void Main(string[] args)
{
Program1 p = new Program1();
p.Test1();
p.Test2();
p.Test3();
var i = 20;
long result = i.Factorial();
String str = "Nitesh kumar.kushwaha";
int compareValue;
System.DateTime theDay = new System.DateTime(System.DateTime.Today.Year, 5, 21);
compareValue = theDay.CompareTo(DateTime.Today);
str = str.ToProper();
Console.WriteLine(str);
Console.WriteLine("Factorial of {0} is : {1}", i, result);
Console.ReadKey();
}