Use If statement in a For statement : If « Statements « VB.Net Tutorial

1. VB.Net Tutorial
2. Statements
3. If

public class Test
   public Shared Sub Main

        Dim intCounter As Integer
        Dim strString As String = "some silly string"

        For intCounter = 0 To strString.Length - 1
            If strString(intCounter) = "s" Then
                strString = strString.Remove(intCounter, 1)
                strString = strString.Insert(intCounter, "S")
            End If
        Next intCounter
        Console.WriteLine(strString)

   End Sub


End class

Some Silly String