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  1. Imports System
  2.  
  3. Public Class Test
  4. Public Shared Sub Main()
  5. Dim number1, number2, total As Integer
  6. Console.WriteLine("Enter first number")
  7. number1 = Int(Console.ReadLine())
  8. Console.WriteLine("Enter second number")
  9. number2 = Int(Console.ReadLine())
  10. total = number1 + number2
  11. Console.WriteLine("The total is " & total)
  12. Console.ReadKey()
  13. End Sub
  14. End Class
Runtime error #stdin #stdout #stderr 0.05s 27744KB
stdin
1
stdout
Enter first number
Enter second number
stderr
Unhandled Exception:
System.ArgumentNullException: Value can not be null.
Parameter name: Number
  at Microsoft.VisualBasic.Conversion.Int (System.Object Number) [0x00000] in <filename unknown>:0 
  at Test.Main () [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentNullException: Value can not be null.
Parameter name: Number
  at Microsoft.VisualBasic.Conversion.Int (System.Object Number) [0x00000] in <filename unknown>:0 
  at Test.Main () [0x00000] in <filename unknown>:0