Imports System
Public Class Program
Public Shared Sub Main()
Dim str As String = "vb.net javascript c++ c"
Dim lastIndexOf_t As Integer = str.LastIndexOf("t"c)
str = str.Substring(0, lastIndexOf_t) & str.Substring(lastIndexOf_t + 1)
Console.WriteLine(str)
End Sub
End Class
' run:
'
' vb.net javascrip c++ c
'