what is ops parameter in c#.net n why we use?

C# program that uses optional parameters 

 using System; 

 class Program

 {   

  static void Main()   

  { 

	// Omit the optional parameters. 

	Method();  	

// Omit second optional parameter. 

	Method(4);  

	// You can't omit the first but keep the second. 

	// Method("Dot");  	// Classic calling syntax. 

	Method(4, "Dot");  	// Specify one named parameter. 

	Method(name: "Sam");  	// Specify both named parameters. 

	Method(value: 5, name: "Allen");   

  }      static void Method(int value = 1, string name = "Perl") 

    { 	Console.WriteLine("value = {0}, name = {1}", value, name); 

    } 

}  

Output  

value = 1, 

name = Perl value = 4, 

name = Perl value = 4, 

name = Dot value = 1, 

name = Sam value = 5, 

name = Allen