dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: VB7
Expertise: Intermediate
Sep 29, 2003

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


CountFileCharacters - Counting how many characters of a given type are in a file

' Count how many characters of a given type are in a file
' Example:
'    Dim charCount(255) As Integer
'    CountFileCharacters("c:\test.txt", charCount)
'    Debug.WriteLine("the char 'A' was found " & charCount(Asc("A")) & " times")
'    Debug.WriteLine("the char 'a' was found " & charCount(Asc("a")) & " times")

Sub CountFileCharacters(ByVal filePath As String, ByVal charCount() As Integer)
    Dim i As Integer, acode As Integer
    Dim fs As System.IO.FileStream
    Dim fileLength As Integer = New System.IO.FileInfo(filePath).Length
    Dim content(fileLength - 1) As Byte

    Try
        ' read the file contents in a temporary Byte array
        fs = New System.IO.FileStream(filePath, IO.FileMode.Open)
        fs.Read(content, 0, fs.Length)
    Finally
        If Not fs Is Nothing Then fs.Close()
    End Try

    ' parse the array, update charCount()
    For i = 0 To content.GetUpperBound(0)
        acode = content(i)
        charCount(acode) = charCount(acode) + 1
    Next i
End Sub
Marco Bellinaso
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date