VB.Net/Data Structure/Queue
Queue Demo: enqueue, dequeue and peek
Imports System
Imports System.Collections
Public Class MainClass
Shared Sub Main()
Dim intQueue As New Queue( )
Dim i As Integer
For i = 0 To 4
intQueue.Enqueue((i * 5))
Next i
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
Console.WriteLine("(Dequeue) {0}", intQueue.Dequeue( ))
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
Console.WriteLine("(Dequeue) {0}", intQueue.Dequeue( ))
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
Console.WriteLine("(Peek) {0}", intQueue.Peek( ))
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
End Sub
Public Shared Sub DisplayValues(ByVal myCollection As IEnumerable)
Dim myEnumerator As IEnumerator = myCollection.GetEnumerator( )
While myEnumerator.MoveNext( )
Console.WriteLine("{0} ", myEnumerator.Current)
End While
Console.WriteLine( )
End Sub
End Class
Queue Item Count
Imports System
Imports System.Collections
Imports System.Collections.Specialized
Public Class MainClass
Shared Sub Main(ByVal args As String())
Dim m_Queue As New Queue
m_Queue.Enqueue("Text")
m_Queue.Enqueue("Text")
m_Queue.Enqueue("Text")
Dim txt As String = DirectCast(m_Queue.Dequeue(), String)
Console.WriteLine(txt)
For Each str As String In m_Queue.ToArray()
Console.WriteLine(str)
Next str
Console.WriteLine(m_Queue.Count )
End Sub
End Class
Simple Demo for Queue: Enqueue, Dequeue and Peek
Imports System
Imports System.Collections
Public Class MainClass
Shared Sub Main(ByVal args As String())
Dim intQueue As New Queue( )
" populate the array
Dim i As Integer
For i = 0 To 4
intQueue.Enqueue((i * 5))
Next i
" Display the Queue.
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
" Remove an element from the queue.
Console.WriteLine("(Dequeue) {0}", intQueue.Dequeue( ))
" Display the Queue.
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
" Remove another element from the queue.
Console.WriteLine("(Dequeue) {0}", intQueue.Dequeue( ))
" Display the Queue.
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
" View the first element in the
" Queue but do not remove.
Console.WriteLine("(Peek) {0}", intQueue.Peek( ))
" Display the Queue.
Console.WriteLine("intQueue values:")
DisplayValues(intQueue)
End Sub
Public Shared Sub DisplayValues(ByVal myCollection As IEnumerable)
Dim myEnumerator As IEnumerator = myCollection.GetEnumerator( )
While myEnumerator.MoveNext( )
Console.WriteLine("{0} ", myEnumerator.Current)
End While
Console.WriteLine( )
End Sub "DisplayValues
End Class