The elements of the queue are enumerated, which does not change the state of the queue.
Imports System
Imports System.Collections.Generic
Module Example
Sub Main
Dim numbers As New Queue(Of String)
numbers.Enqueue("one")
numbers.Enqueue("two")
numbers.Enqueue("three")
numbers.Enqueue("four")
numbers.Enqueue("five")
' A queue can be enumerated without disturbing its contents.
For Each number As String In numbers
Console.WriteLine(number)
Next
End Sub
End Module