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Random maths symbol into textbox

How can i make a random maths symbol, plus, minus, divide, multiply appear into a text box at the click of a button.

Not the best way maybe but the easiest I could think of.. put the math symbols in a hashtable paired with a number from 0 to 3 like so:

Private myHashTable As New HashTable
myHashTable.Add(0, "+")
myHashTable.Add(1, "-")
myHashTable.Add(2, "*")
myHashTable.Add(3, "/")

then in the buttonclick handler all you have to do is the following:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myRandomNumGen As New Random
MathSignText.Text = "" 'Clean up old value
MathSignText.Text = myHashTable(myRandomNumGen.Next(4))
End Sub

This should do it

ASKER CERTIFIED SOLUTION

roverm

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malharone

i liked roverm's style the best !! simple and does the work.. though could be more generalized

public sub printRandomChar()
Randomize()
dim chars as string = "+-/*"
txtBox.Text = Mid(chars, Int(Rnd() * chars.length) + 1, 1)
end sub

so .. now, all you'd have to do is change the value of chars, and you'd have to remember to change the max. value of string.

Bob Learned

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