VB.Net Tutorial/Data Type/Overflows

Demonstrating overflows with and without checking

Class Tester
   Shared Sub Main()
      Try
         Dim number1 As Integer = Int32.MaxValue " 2,147,483,647
         Dim number2 As Integer = Int32.MaxValue " 2,147,483,647
         Dim sum As Integer = 0
         Console.WriteLine("number1: {0}" & vbCrLf & _
            "number2: {1}", number1, number2)
         Console.WriteLine("Sum integers in checked context:")
         sum = number1 + number2 " compute sum
         Console.WriteLine("Sum after operation: {0}", sum)
      Catch overflowExceptionParameter As OverflowException
         Console.WriteLine(overflowExceptionParameter.ToString())
      End Try
   End Sub
End Class

number1: 2147483647
number2: 2147483647
Sum integers in checked context:
System.OverflowException: Arithmetic operation resulted in an overflow.
   at Tester.Main()