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LinkedList<T> Constructor

Initializes a new instance of the LinkedList<T> class that is empty.

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

public:
LinkedList()

LinkedList<T> accepts nullptr as a valid Value for reference types and allows duplicate values.

If the LinkedList<T> is empty, the First and Last properties contain nullptr.

This constructor is an O(1) operation.

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


#using <System.dll>

using namespace System;
using namespace System::Collections;
using namespace System::Collections::Generic;

void main()
{
   // Create and initialize a new LinkedList.
   LinkedList< String^ > ^ ll = gcnew LinkedList< String^ >;
   ll->AddLast( L"red" );
   ll->AddLast( L"orange" );
   ll->AddLast( L"yellow" );
   ll->AddLast( L"orange" );

   // Display the contents of the LinkedList.
   if ( ll->Count > 0 )
   {
      Console::WriteLine( L"The first item in the list is {0}.", ll->First->Value );
      Console::WriteLine( L"The last item in the list is {0}.", ll->Last->Value );
      Console::WriteLine( L"The LinkedList contains:" );

      for each (String^ s in ll)
      {
         Console::WriteLine( L"   {0}", s );
      }
   }
   else
   {
      Console::WriteLine( L"The LinkedList is empty." );
   }
}

/* This code produces the following output.

The first item in the list is red.
The last item in the list is orange.
The LinkedList contains:
   red
   orange
   yellow
   orange
*/



.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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