Question

I have an array of integers like these;
dim x as integer()={10,9,4,7,6,8,3}.
Now I want to pick a random number from it,how can I do this in visual basic?Thanks in advance…

Answer 1

First you need a random generator:

Dim rnd As New Random()

Then you pick a random number that represents an index into the array:

Dim index As Integer = rnd.Next(0, x.Length)

Then you get the value from the array:

Dim value As Integer = x(index)

Or the two last as a single statement:

Dim value As Integer = x(rnd.Next(0, x.Length))

Now, if you also want to remove the number that you picked from the array, you shouldn’t use an array in the first place. You should use a List(Of Integer) as that is designed to be dynamic in size.