Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

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
Return to top
Show:
© 2017 Microsoft