LinkedList(Of T) Constructor ()

 
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Initializes a new instance of the LinkedList(Of T) class that is empty.

Namespace:   System.Collections.Generic
Assembly:  System (in System.dll)

Public Sub New

LinkedList(Of T) accepts null as a valid Value for reference types and allows duplicate values.

If the LinkedList(Of T) is empty, the First and Last properties contain null.

This constructor is an O(1) operation.

The following code example creates and initializes a LinkedList(Of T) of type String, adds several nodes, and then displays its contents.

Imports System
Imports System.Collections
Imports System.Collections.Generic

Public Class GenericCollection

    Public Shared Sub Main()

        ' Create and initialize a new LinkedList.
        Dim ll As New LinkedList(Of String)()
        ll.AddLast("red")
        ll.AddLast("orange")
        ll.AddLast("yellow")
        ll.AddLast("orange")

        ' Display the contents of the LinkedList.
        If ll.Count > 0 Then
            Console.WriteLine("The first item in the list is {0}.", ll.First.Value)
            Console.WriteLine("The last item in the list is {0}.", ll.Last.Value)

            Console.WriteLine("The LinkedList contains:")
            For Each s As String In  ll
                Console.WriteLine("   {0}", s)
            Next s 
        Else
            Console.WriteLine("The LinkedList is empty.")
        End If

    End Sub 

End Class 

'This code produces the following output.
'
'The first item in the list is <null>.
'The last item in the list is orange.
'The LinkedList contains:
'   red
'   orange
'   yellow
'   orange

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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