Data Type VB.Net Tutorial

Imports System.Text
Module Tester
   Sub Main()
      Dim i As Integer
      Dim buffer As StringBuilder = New StringBuilder("Hello, how are you?")
      ' use Length and Capacity properties
      Console.WriteLine("buffer = " & buffer.ToString & _
         vbCrLf & "Length = " & buffer.Length & vbCrLf & _
         "Capacity = " & buffer.Capacity)
      buffer.EnsureCapacity(75)
      Console.WriteLine("New capacity = " & buffer.Capacity)
      ' truncate StringBuilder by setting Length property
      buffer.Length = 10
      
      Console.WriteLine("New Length = " & buffer.Length )
      
   End Sub 
End Module
buffer = Hello, how are you?
Length = 19
Capacity = 32
New capacity = 75
New Length = 10