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 null as a valid Value for reference types and allows duplicate values.

If the LinkedList<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<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
*/

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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