Question

How to generate a random hexadecimal string in VB.NET

Answer 1

Imports System

Class RandomHexGenerator
    Private Shared Function GenerateHex(ByVal length As Integer) As String
        Const hexChars As String = "0123456789ABCDEF"
        Dim rand As Random = New Random()
        Dim hexArray As Char() = New Char(length - 1) {}

        For i As Integer = 0 To length - 1
            Dim index As Integer = rand.Next(16)
            hexArray(i) = hexChars(index)
        Next

        Return New String(hexArray)
    End Function

    Public Shared Sub Main()
        Dim length As Integer = 8
        Dim hexNumber As String = GenerateHex(length)

        Console.WriteLine("Random Hexadecimal Number: " & hexNumber)
    End Sub
End Class



' run:
'
' Random Hexadecimal Number: 9D481802
'

 

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