Imports System
Public Class Program
Public Shared Sub Main(ByVal args As String())
Dim str As String = "vb c java c++ python go"
Dim halfstr As String = str.Substring(0, (str.Length / 2) + 1)
Dim center As Integer = halfstr.LastIndexOf(" "c) + 1
Dim parts As String() = New String() {str.Substring(0, center), str.Substring(center)}
Console.WriteLine(parts(0))
Console.WriteLine(parts(1))
End Sub
End Class
' run:
'
' vb c java
' c++ python go
'