Imports System
Public Module Module1
Public Sub Main()
Dim rand As Random = new Random()
For i As Integer = 1 To 20
Console.WriteLine(rand.Next(1000, 9999))
Next
End Sub
End Module
' run:
'
' 3193
' 1807
' 3203
' 8421
' 7985
' 4218
' 2156
' 9477
' 2682
' 6409
' 2027
' 3723
' 7969
' 1611
' 8490
' 6013
' 5133
' 7069
' 6619
' 8814