Data Types VB.Net

Imports System
Imports System.Text
Class Sample
   Public Shared Sub Main()
        Dim charactersBuilder As New StringBuilder("abc")
        Dim characters As String
        
        charactersBuilder.Append(Chr(0))
        charactersBuilder.Append("def")
        
        characters = charactersBuilder.ToString()
        Console.WriteLine(characters.Length)
   End Sub 'Main
End Class 'Sample