How to count uppercase, lowercase, special characters, and numeric values using RegEx in VB.NET

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Imports System
Imports System.Text.RegularExpressions

Module Module1

    Function CountCharacters(text As String) As (uppercase As Integer, lowercase As Integer, digits As Integer, special As Integer)
        Dim uppercase = Regex.Matches(text, "[A-Z]").Count
        Dim lowercase = Regex.Matches(text, "[a-z]").Count
        Dim digits = Regex.Matches(text, "\d").Count
        Dim special = Regex.Matches(text, "[^A-Za-z0-9]").Count

        Return (uppercase, lowercase, digits, special)
    End Function

    Sub Main()
		Dim s As String = "Programming&AI@2026!"

        Dim result = CountCharacters(s)

        Console.WriteLine("Uppercase: " & result.uppercase)
        Console.WriteLine("Lowercase: " & result.lowercase)
        Console.WriteLine("Digits: " & result.digits)
        Console.WriteLine("Special characters: " & result.special)
    End Sub

End Module



' run:
'
' Uppercase: 3
' Lowercase: 10
' Digits: 4
' Special characters: 3
'

 



answered Feb 20 by avibootz

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