[RESOLVED] How to check duplicate digit?

Dear all expert programmer,
I want to make project to check duplicate digit. Please see data below.

set1 = "0123-4506"
set2 = "1234-4506-8899"
set3 = "0123-1234-4506"

Summary data is "0123-4506-1234-4506-8899-0123-1234-4506"

After check duplicate in all set it will be show result below

Dup3 = "4506" (That mean it have number of 4506 = 3)
Dup2 = "0123-1234" (That mean have number of 0124 and 1234 = 2)
Dup1 = "8899" (That mean it have number of 8899 = 1)

Please tell me how to code it.

Thank you for all answer.

You will have to explain more clearly the logic behind output values Dup1, Dup2, Dup3... does Dup1 mean one instance in all sets, Dup2 mean two instances in all sets etc?

OK, Please see above again.

I'm sorry but your improved explanation still doesn't help (at least me). In any case isn't this the same question as in this other thread?

maybe this is an idea of what your wanting..
i just tossed it together to let you sample it. you could easily convert it to a function to fit your needs. im thinking there is an easier way, but for now this is what came to mind.

Code:

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Option Explicit

Private Type fData
    fStr As String
    fCount As Long
End Type


Private Sub Command1_Click()

    Dim iSet(1 To 3) As String
    Dim sArray() As String
    Dim UbArray As Long
    Dim dHold As String
    Dim iCount As Long, fCount As Long
    Dim i As Long
    Dim iFind() As fData
    ReDim iFind(0)
   
    iSet(1) = "0123-4506"
    iSet(2) = "1234-4506-8899"
    iSet(3) = "0123-1234-4506"
   
    sArray = Split(Join(iSet, "-"), "-")
   
    UbArray = UBound(sArray)
   
    fCount = 0
   
    Do
        dHold = sArray(iCount)
        iFind(fCount).fStr = dHold
        iFind(fCount).fCount = 1
        For i = iCount + 1 To UbArray
            If sArray(i) = dHold Then 'found one
                sArray(i) = vbNullString
                iFind(fCount).fCount = iFind(fCount).fCount + 1
            End If
        Next i
        Do ' pass through the empty elements of sArray (if any)
            iCount = iCount + 1
            If iCount > UbArray Then
                Exit Do
            End If
        Loop Until sArray(iCount) <> vbNullString
        If iCount > UbArray Then
            Exit Do
        End If
     
        If iFind(fCount).fCount > 0 Then
            fCount = fCount + 1
            ReDim Preserve iFind(0 To fCount)
        End If
    Loop
   
    For i = 0 To UBound(iFind)
        MsgBox iFind(i).fStr & " = " & iFind(i).fCount
    Next i

End Sub

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