CopyTo method is used to copy the array elements beginning at the middle of the array.

   

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")

        Dim queueCopy As New Queue(Of String)(numbers.ToArray())

        For Each number As String In queueCopy
            Console.WriteLine(number)
        Next

        Dim array2((numbers.Count * 2) - 1) As String
        numbers.CopyTo(array2, numbers.Count)

    End Sub
End Module

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4.	Creates a queue of strings with default capacity and uses the Enqueue method to queue five strings.
5.	The elements of the queue are enumerated, which does not change the state of the queue.
6.	The Dequeue method is used to dequeue the first string.
7.	The Peek method is used to look at the next item in the queue
8.	The ToArray method is used to create an array and copy the queue elements to it
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10.	Create a second copy of the queue containing three null elements at the beginning.
11.	Queue Class represents a first-in, first-out collection of objects.

CopyTo method is used to copy the array elements beginning at the middle of the array. : Queue « Data Structure « VB.Net

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