1 public class MyClass

 2 {

 3     public static void UseParams(params int[] list)

 4     {

 5         for (int i = 0; i < list.Length; i++)

 6         {

 7             Console.Write(list[i] + " ");

 8         }

 9         Console.WriteLine();

10     }

11

12     public static void UseParams2(params object[] list)

13     {

14         for (int i = 0; i < list.Length; i++)

15         {

16             Console.Write(list[i] + " ");

17         }

18         Console.WriteLine();

19     }

20

21     static void Main()

22     {

23         // You can send a comma-separated list of arguments of the

24         // specified type.

25         UseParams(1, 2, 3, 4);

26         UseParams2(1, 'a', "test");

27

28         // A params parameter accepts zero or more arguments.

29         // The following calling statement displays only a blank line.

30         UseParams2();

31

32         // An array argument can be passed, as long as the array

33         // type matches the parameter type of the method being called.

34         int[] myIntArray = { 5, 6, 7, 8, 9 };

35         UseParams(myIntArray);

36

37         object[] myObjArray = { 2, 'b', "test", "again" };

38         UseParams2(myObjArray);

39

40         // The following call causes a compiler error because the object

41         // array cannot be converted into an integer array.

42         //UseParams(myObjArray);

43

44         // The following call does not cause an error, but the entire

45         // integer array becomes the first element of the params array.

46         UseParams2(myIntArray);

47     }

48 }