Generate random numeric & alphabetic?

Question

I'm making a random hexadecimal generator is it possible in visual basic to make a code that randomly generates number and letters together? How would you do it? I'm really lost. I'd like to randomly generate a 2 string hexadecimal including numbers and letters or sometimes output just either a letter or a string. I'd like to randomly generate for example "01", "A" , "AF", "B2", "8", "0F" etc

Answer 1

Module Module1

Function RandomHexStr() As String

Dim RandHexStr As String

RandHexStr = " "

Randomize()

For iLoop = 1 To 2

Dim randomNum As Integer = -1

While (randomNum < 1) Or (randomNum > 16)

randomNum = Int(Rnd() * 15 + 1)

End While

Select Case (randomNum)

Case 10 : RandHexStr = RandHexStr & "A"

Case 11 : RandHexStr = RandHexStr & "B"

Case 12 : RandHexStr = RandHexStr & "C"

Case 13 : RandHexStr = RandHexStr & "D"

Case 14 : RandHexStr = RandHexStr & "E"

Case 15 : RandHexStr = RandHexStr & "F"

Case Else : RandHexStr = RandHexStr & randomNum

End Select

Next

RandomHexStr = RandHexStr

End Function

Sub Go()

For iLoop = 1 To 10

Console.WriteLine(RandomHexStr)

Next

End Sub

Sub Main()

Go()

End Sub

End Module