Param Array in vb.net

Here we will know about param array (parameter array) 

Condition of using this array 
1.It must be the lone argument in the parameter declaration or it is used only once.
2.It is passed by call by value.
3.It must be the one dimensional array.
4.It must be the last argument in the parameter declaration.
5.A keyword param array is used after by val.

Program 

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        sname("Student Name", "raj", "ravi", "abhijit", "rahul", "adarsh")
    End Sub
    Private Sub sname(ByVal s As String, ByVal ParamArray ar() As String)
        Dim i As Integer
        TextBox1.Text += s + vbCrLf
        For i = 0 To UBound(ar)
            TextBox1.Text += ar(i) + vbCrLf
        Next
    End Sub
End Class