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Imports System
Imports System.Collections
Public Class MainClass
Shared Sub Main()
Dim fooaLinkedList As New LinkedList("A")
Dim aLink As Link
aLink = fooaLinkedList.MakeLink(fooaLinkedList.GetFirstLink, "B")
aLink = fooaLinkedList.MakeLink(aLink, "C")
Console.WriteLine(fooaLinkedList.GetFirstLink.MyData)
aLink = fooaLinkedList.GetNextLink(fooaLinkedList.GetFirstLink)
Console.WriteLine(aLink.MyData)
Console.WriteLine(aLink.NextLink.MyData)
End Sub
End Class
Public Class LinkedList
Private m_CurrentLink As Link
Private m_FirstLink As Link
Sub New(ByVal theData As String)
m_CurrentLink = New Link(theData)
m_FirstLink = m_CurrentLink
End Sub
Public Function MakeLink(ByVal currentLink As Link, ByVal theData As String) As Link
m_CurrentLink = New Link(currentLink, theData)
Return m_CurrentLink
End Function
Public ReadOnly Property GetNextLink(ByVal aLink As Link) As Link
Get
Return aLink.NextLink()
End Get
End Property
Public ReadOnly Property GetCurrentLink() As Link
Get
Return m_CurrentLink
End Get
End Property
Public ReadOnly Property GetFirstLink() As Link
Get
Return m_FirstLink
End Get
End Property
End Class
Public Class Link
Private m_MyData As String
Private m_NextLink As Link
Friend Sub New(ByVal myParent As Link, ByVal theData As String)
m_MyData = theData
myParent.m_NextLink = Me
End Sub
Friend Sub New(ByVal theData As String)
m_MyData = theData
End Sub
Friend ReadOnly Property MyData() As String
Get
Return m_MyData
End Get
End Property
Friend ReadOnly Property NextLink() As Link
Get
Return m_NextLink
End Get
End Property
End Class
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