Imports System
Public Class MainClass
Shared Sub Main(ByVal args As String())
Dim num_items As Integer
Try
num_items = Integer.Parse("aa")
Catch ex As Exception
Console.WriteLine("Error in Num Items." & vbCrLf & ex.Message)
Exit Sub
End Try
' Check that the value is between 1 and 100.
If num_items < 1 Or num_items > 100 Then
Console.WriteLine("Num Items must be between 1 and 100")
Exit Sub
End If
End Sub
End Class