Excel VBA starting a Sub

Question

How would I start the below code?

Worksheets("Sheet1").Activate 
    'Can't select unless the sheet is active 
Dim Title As Integer, result As String 
titleDetail = Range("A1").Value 
If titleDetail = "Title" Then result = "Hyperlink" 
Selection.Offset(1, 0).Range("A1").Value = result   

Any script always has to begin with either Private Sub, Public Sub, etc. correct? How do I determine which to use?

Secondly, when I declare my range (titleDetail = Range("A1").Value) right now its only going to look in cell A1 correct? What would be the proper syntax to look through any cells from A1:C150?

Answer 1

Something like this:

Sub RunThis()
    With Worksheets("Sheet1").Range("A1")
        .Offset(1, 0).Value = IIf(.Value = "Title", "Hyperlink", "")
    End With
End Sub