LinkedList<T> Classe

Definição

generic <typename T>
public ref class LinkedList : System::Collections::Generic::ICollection<T>, System::Collections::Generic::IEnumerable<T>, System::Collections::Generic::IReadOnlyCollection<T>, System::Collections::ICollection

generic <typename T>
public ref class LinkedList : System::Collections::Generic::ICollection<T>, System::Collections::Generic::IEnumerable<T>, System::Collections::Generic::IReadOnlyCollection<T>, System::Collections::ICollection, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable

generic <typename T>
public ref class LinkedList : System::Collections::Generic::ICollection<T>, System::Collections::Generic::IEnumerable<T>, System::Collections::ICollection, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable

generic <typename T>
public ref class LinkedList : System::Collections::Generic::ICollection<T>, System::Collections::Generic::IEnumerable<T>, System::Collections::ICollection

public class LinkedList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IReadOnlyCollection<T>, System.Collections.ICollection

public class LinkedList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IReadOnlyCollection<T>, System.Collections.ICollection, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable

[System.Runtime.InteropServices.ComVisible(false)]
[System.Serializable]
public class LinkedList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.ICollection, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable

[System.Runtime.InteropServices.ComVisible(false)]
[System.Serializable]
public class LinkedList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IReadOnlyCollection<T>, System.Collections.ICollection, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable

public class LinkedList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.ICollection

type LinkedList<'T> = class
    interface ICollection<'T>
    interface seq<'T>
    interface IEnumerable
    interface IReadOnlyCollection<'T>
    interface ICollection

type LinkedList<'T> = class
    interface ICollection<'T>
    interface seq<'T>
    interface IEnumerable
    interface IReadOnlyCollection<'T>
    interface ICollection
    interface IDeserializationCallback
    interface ISerializable

[<System.Runtime.InteropServices.ComVisible(false)>]
[<System.Serializable>]
type LinkedList<'T> = class
    interface ICollection<'T>
    interface seq<'T>
    interface ICollection
    interface IEnumerable
    interface ISerializable
    interface IDeserializationCallback

[<System.Runtime.InteropServices.ComVisible(false)>]
[<System.Serializable>]
type LinkedList<'T> = class
    interface ICollection<'T>
    interface seq<'T>
    interface IEnumerable
    interface ICollection
    interface IReadOnlyCollection<'T>
    interface ISerializable
    interface IDeserializationCallback

type LinkedList<'T> = class
    interface ICollection<'T>
    interface seq<'T>
    interface ICollection
    interface IEnumerable

Public Class LinkedList(Of T)
Implements ICollection, ICollection(Of T), IEnumerable(Of T), IReadOnlyCollection(Of T)

Public Class LinkedList(Of T)
Implements ICollection, ICollection(Of T), IDeserializationCallback, IEnumerable(Of T), IReadOnlyCollection(Of T), ISerializable

Public Class LinkedList(Of T)
Implements ICollection, ICollection(Of T), IDeserializationCallback, IEnumerable(Of T), ISerializable

Public Class LinkedList(Of T)
Implements ICollection, ICollection(Of T), IEnumerable(Of T)

Parâmetros de tipo

Herança

Object

LinkedList<T>

Atributos

ComVisibleAttribute SerializableAttribute

Implementações

ICollection<T> IEnumerable<T> IReadOnlyCollection<T> ICollection IEnumerable IDeserializationCallback ISerializable

Exemplos

O exemplo de código a seguir demonstra muitos recursos da classe LinkedList<T>.

#using <System.dll>

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

public ref class Example
{
public:
    static void Main()
    {
        // Create the link list.
        array<String^>^ words =
            { "the", "fox", "jumped", "over", "the", "dog" };
        LinkedList<String^>^ sentence = gcnew LinkedList<String^>(words);
        Display(sentence, "The linked list values:");
        Console::WriteLine("sentence.Contains(\"jumped\") = {0}",
            sentence->Contains("jumped"));

        // Add the word 'today' to the beginning of the linked list.
        sentence->AddFirst("today");
        Display(sentence, "Test 1: Add 'today' to beginning of the list:");

        // Move the first node to be the last node.
        LinkedListNode<String^>^ mark1 = sentence->First;
        sentence->RemoveFirst();
        sentence->AddLast(mark1);
        Display(sentence, "Test 2: Move first node to be last node:");

        // Change the last node to 'yesterday'.
        sentence->RemoveLast();
        sentence->AddLast("yesterday");
        Display(sentence, "Test 3: Change the last node to 'yesterday':");

        // Move the last node to be the first node.
        mark1 = sentence->Last;
        sentence->RemoveLast();
        sentence->AddFirst(mark1);
        Display(sentence, "Test 4: Move last node to be first node:");


        // Indicate the last occurence of 'the'.
        sentence->RemoveFirst();
        LinkedListNode<String^>^ current = sentence->FindLast("the");
        IndicateNode(current, "Test 5: Indicate last occurence of 'the':");

        // Add 'lazy' and 'old' after 'the' (the LinkedListNode named current).
        sentence->AddAfter(current, "old");
        sentence->AddAfter(current, "lazy");
        IndicateNode(current, "Test 6: Add 'lazy' and 'old' after 'the':");

        // Indicate 'fox' node.
        current = sentence->Find("fox");
        IndicateNode(current, "Test 7: Indicate the 'fox' node:");

        // Add 'quick' and 'brown' before 'fox':
        sentence->AddBefore(current, "quick");
        sentence->AddBefore(current, "brown");
        IndicateNode(current, "Test 8: Add 'quick' and 'brown' before 'fox':");

        // Keep a reference to the current node, 'fox',
        // and to the previous node in the list. Indicate the 'dog' node.
        mark1 = current;
        LinkedListNode<String^>^ mark2 = current->Previous;
        current = sentence->Find("dog");
        IndicateNode(current, "Test 9: Indicate the 'dog' node:");

        // The AddBefore method throws an InvalidOperationException
        // if you try to add a node that already belongs to a list.
        Console::WriteLine("Test 10: Throw exception by adding node (fox) already in the list:");
        try
        {
            sentence->AddBefore(current, mark1);
        }
        catch (InvalidOperationException^ ex)
        {
            Console::WriteLine("Exception message: {0}", ex->Message);
        }
        Console::WriteLine();

        // Remove the node referred to by mark1, and then add it
        // before the node referred to by current.
        // Indicate the node referred to by current.
        sentence->Remove(mark1);
        sentence->AddBefore(current, mark1);
        IndicateNode(current, "Test 11: Move a referenced node (fox) before the current node (dog):");

        // Remove the node referred to by current.
        sentence->Remove(current);
        IndicateNode(current, "Test 12: Remove current node (dog) and attempt to indicate it:");

        // Add the node after the node referred to by mark2.
        sentence->AddAfter(mark2, current);
        IndicateNode(current, "Test 13: Add node removed in test 11 after a referenced node (brown):");

        // The Remove method finds and removes the
        // first node that that has the specified value.
        sentence->Remove("old");
        Display(sentence, "Test 14: Remove node that has the value 'old':");

        // When the linked list is cast to ICollection(Of String),
        // the Add method adds a node to the end of the list.
        sentence->RemoveLast();
        ICollection<String^>^ icoll = sentence;
        icoll->Add("rhinoceros");
        Display(sentence, "Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':");

        Console::WriteLine("Test 16: Copy the list to an array:");
        // Create an array with the same number of
        // elements as the inked list.
        array<String^>^ sArray = gcnew array<String^>(sentence->Count);
        sentence->CopyTo(sArray, 0);

        for each (String^ s in sArray)
        {
            Console::WriteLine(s);
        }


        // Release all the nodes.
        sentence->Clear();

        Console::WriteLine();
        Console::WriteLine("Test 17: Clear linked list. Contains 'jumped' = {0}",
            sentence->Contains("jumped"));

        Console::ReadLine();
    }

private:
    static void Display(LinkedList<String^>^ words, String^ test)
    {
        Console::WriteLine(test);
        for each (String^ word in words)
        {
            Console::Write(word + " ");
        }
        Console::WriteLine();
        Console::WriteLine();
    }

    static void IndicateNode(LinkedListNode<String^>^ node, String^ test)
    {
        Console::WriteLine(test);
        if (node->List == nullptr)
        {
            Console::WriteLine("Node '{0}' is not in the list.\n",
                node->Value);
            return;
        }

        StringBuilder^ result = gcnew StringBuilder("(" + node->Value + ")");
        LinkedListNode<String^>^ nodeP = node->Previous;

        while (nodeP != nullptr)
        {
            result->Insert(0, nodeP->Value + " ");
            nodeP = nodeP->Previous;
        }

        node = node->Next;
        while (node != nullptr)
        {
            result->Append(" " + node->Value);
            node = node->Next;
        }

        Console::WriteLine(result);
        Console::WriteLine();
    }
};

int main()
{
    Example::Main();
}

//This code example produces the following output:
//
//The linked list values:
//the fox jumped over the dog

//Test 1: Add 'today' to beginning of the list:
//today the fox jumped over the dog

//Test 2: Move first node to be last node:
//the fox jumped over the dog today

//Test 3: Change the last node to 'yesterday':
//the fox jumped over the dog yesterday

//Test 4: Move last node to be first node:
//yesterday the fox jumped over the dog

//Test 5: Indicate last occurence of 'the':
//the fox jumped over (the) dog

//Test 6: Add 'lazy' and 'old' after 'the':
//the fox jumped over (the) lazy old dog

//Test 7: Indicate the 'fox' node:
//the (fox) jumped over the lazy old dog

//Test 8: Add 'quick' and 'brown' before 'fox':
//the quick brown (fox) jumped over the lazy old dog

//Test 9: Indicate the 'dog' node:
//the quick brown fox jumped over the lazy old (dog)

//Test 10: Throw exception by adding node (fox) already in the list:
//Exception message: The LinkedList node belongs a LinkedList.

//Test 11: Move a referenced node (fox) before the current node (dog):
//the quick brown jumped over the lazy old fox (dog)

//Test 12: Remove current node (dog) and attempt to indicate it:
//Node 'dog' is not in the list.

//Test 13: Add node removed in test 11 after a referenced node (brown):
//the quick brown (dog) jumped over the lazy old fox

//Test 14: Remove node that has the value 'old':
//the quick brown dog jumped over the lazy fox

//Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
//the quick brown dog jumped over the lazy rhinoceros

//Test 16: Copy the list to an array:
//the
//quick
//brown
//dog
//jumped
//over
//the
//lazy
//rhinoceros

//Test 17: Clear linked list. Contains 'jumped' = False
//

using System;
using System.Text;
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        // Create the link list.
        string[] words =
            { "the", "fox", "jumps", "over", "the", "dog" };
        LinkedList<string> sentence = new LinkedList<string>(words);
        Display(sentence, "The linked list values:");

        // Add the word 'today' to the beginning of the linked list.
        sentence.AddFirst("today");
        Display(sentence, "Test 1: Add 'today' to beginning of the list:");

        // Move the first node to be the last node.
        LinkedListNode<string> mark1 = sentence.First;
        sentence.RemoveFirst();
        sentence.AddLast(mark1);
        Display(sentence, "Test 2: Move first node to be last node:");

        // Change the last node to 'yesterday'.
        sentence.RemoveLast();
        sentence.AddLast("yesterday");
        Display(sentence, "Test 3: Change the last node to 'yesterday':");

        // Move the last node to be the first node.
        mark1 = sentence.Last;
        sentence.RemoveLast();
        sentence.AddFirst(mark1);
        Display(sentence, "Test 4: Move last node to be first node:");

        // Indicate the last occurence of 'the'.
        sentence.RemoveFirst();
        LinkedListNode<string> current = sentence.FindLast("the");
        IndicateNode(current, "Test 5: Indicate last occurence of 'the':");

        // Add 'lazy' and 'old' after 'the' (the LinkedListNode named current).
        sentence.AddAfter(current, "old");
        sentence.AddAfter(current, "lazy");
        IndicateNode(current, "Test 6: Add 'lazy' and 'old' after 'the':");

        // Indicate 'fox' node.
        current = sentence.Find("fox");
        IndicateNode(current, "Test 7: Indicate the 'fox' node:");

        // Add 'quick' and 'brown' before 'fox':
        sentence.AddBefore(current, "quick");
        sentence.AddBefore(current, "brown");
        IndicateNode(current, "Test 8: Add 'quick' and 'brown' before 'fox':");

        // Keep a reference to the current node, 'fox',
        // and to the previous node in the list. Indicate the 'dog' node.
        mark1 = current;
        LinkedListNode<string> mark2 = current.Previous;
        current = sentence.Find("dog");
        IndicateNode(current, "Test 9: Indicate the 'dog' node:");

        // The AddBefore method throws an InvalidOperationException
        // if you try to add a node that already belongs to a list.
        Console.WriteLine("Test 10: Throw exception by adding node (fox) already in the list:");
        try
        {
            sentence.AddBefore(current, mark1);
        }
        catch (InvalidOperationException ex)
        {
            Console.WriteLine("Exception message: {0}", ex.Message);
        }
        Console.WriteLine();

        // Remove the node referred to by mark1, and then add it
        // before the node referred to by current.
        // Indicate the node referred to by current.
        sentence.Remove(mark1);
        sentence.AddBefore(current, mark1);
        IndicateNode(current, "Test 11: Move a referenced node (fox) before the current node (dog):");

        // Remove the node referred to by current.
        sentence.Remove(current);
        IndicateNode(current, "Test 12: Remove current node (dog) and attempt to indicate it:");

        // Add the node after the node referred to by mark2.
        sentence.AddAfter(mark2, current);
        IndicateNode(current, "Test 13: Add node removed in test 11 after a referenced node (brown):");

        // The Remove method finds and removes the
        // first node that that has the specified value.
        sentence.Remove("old");
        Display(sentence, "Test 14: Remove node that has the value 'old':");

        // When the linked list is cast to ICollection(Of String),
        // the Add method adds a node to the end of the list.
        sentence.RemoveLast();
        ICollection<string> icoll = sentence;
        icoll.Add("rhinoceros");
        Display(sentence, "Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':");

        Console.WriteLine("Test 16: Copy the list to an array:");
        // Create an array with the same number of
        // elements as the linked list.
        string[] sArray = new string[sentence.Count];
        sentence.CopyTo(sArray, 0);

        foreach (string s in sArray)
        {
            Console.WriteLine(s);
        }

        Console.WriteLine("Test 17: linked list Contains 'jumps' = {0}",
            sentence.Contains("jumps"));
        
        // Release all the nodes.
        sentence.Clear();

        Console.WriteLine();
        Console.WriteLine("Test 18: Cleared linked list Contains 'jumps' = {0}",
            sentence.Contains("jumps"));

        Console.ReadLine();
    }

    private static void Display(LinkedList<string> words, string test)
    {
        Console.WriteLine(test);
        foreach (string word in words)
        {
            Console.Write(word + " ");
        }
        Console.WriteLine();
        Console.WriteLine();
    }

    private static void IndicateNode(LinkedListNode<string> node, string test)
    {
        Console.WriteLine(test);
        if (node.List == null)
        {
            Console.WriteLine("Node '{0}' is not in the list.\n",
                node.Value);
            return;
        }

        StringBuilder result = new StringBuilder("(" + node.Value + ")");
        LinkedListNode<string> nodeP = node.Previous;

        while (nodeP != null)
        {
            result.Insert(0, nodeP.Value + " ");
            nodeP = nodeP.Previous;
        }

        node = node.Next;
        while (node != null)
        {
            result.Append(" " + node.Value);
            node = node.Next;
        }

        Console.WriteLine(result);
        Console.WriteLine();
    }
}

//This code example produces the following output:
//
//The linked list values:
//the fox jumps over the dog

//Test 1: Add 'today' to beginning of the list:
//today the fox jumps over the dog

//Test 2: Move first node to be last node:
//the fox jumps over the dog today

//Test 3: Change the last node to 'yesterday':
//the fox jumps over the dog yesterday

//Test 4: Move last node to be first node:
//yesterday the fox jumps over the dog

//Test 5: Indicate last occurence of 'the':
//the fox jumps over (the) dog

//Test 6: Add 'lazy' and 'old' after 'the':
//the fox jumps over (the) lazy old dog

//Test 7: Indicate the 'fox' node:
//the (fox) jumps over the lazy old dog

//Test 8: Add 'quick' and 'brown' before 'fox':
//the quick brown (fox) jumps over the lazy old dog

//Test 9: Indicate the 'dog' node:
//the quick brown fox jumps over the lazy old (dog)

//Test 10: Throw exception by adding node (fox) already in the list:
//Exception message: The LinkedList node belongs a LinkedList.

//Test 11: Move a referenced node (fox) before the current node (dog):
//the quick brown jumps over the lazy old fox (dog)

//Test 12: Remove current node (dog) and attempt to indicate it:
//Node 'dog' is not in the list.

//Test 13: Add node removed in test 11 after a referenced node (brown):
//the quick brown (dog) jumps over the lazy old fox

//Test 14: Remove node that has the value 'old':
//the quick brown dog jumps over the lazy fox

//Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
//the quick brown dog jumps over the lazy rhinoceros

//Test 16: Copy the list to an array:
//the
//quick
//brown
//dog
//jumps
//over
//the
//lazy
//rhinoceros

//Test 17: linked list Contains 'jumps'= True

//Test 18: Cleared linked list Contains 'jumps'  = False
//

Imports System.Text
Imports System.Collections.Generic
Public Class Example

    Public Shared Sub Main()
        ' Create the link list.
        Dim words() As String = {"the", "fox", _
            "jumps", "over", "the", "dog"}
        Dim sentence As New LinkedList(Of String)(words)
        Console.WriteLine("sentence.Contains(""jumps"") = {0}", _
            sentence.Contains("jumps"))
        Display(sentence, "The linked list values:")
        ' Add the word 'today' to the beginning of the linked list.
        sentence.AddFirst("today")
        Display(sentence, "Test 1: Add 'today' to beginning of the list:")
        ' Move the first node to be the last node.
        Dim mark1 As LinkedListNode(Of String) = sentence.First
        sentence.RemoveFirst()
        sentence.AddLast(mark1)
        Display(sentence, "Test 2: Move first node to be last node:")
        ' Change the last node to 'yesterday'.
        sentence.RemoveLast()
        sentence.AddLast("yesterday")
        Display(sentence, "Test 3: Change the last node to 'yesterday':")
        ' Move the last node to be the first node.
        mark1 = sentence.Last
        sentence.RemoveLast()
        sentence.AddFirst(mark1)
        Display(sentence, "Test 4: Move last node to be first node:")
        ' Indicate the last occurence of 'the'.
        sentence.RemoveFirst()
        Dim current As LinkedListNode(Of String) = sentence.FindLast("the")
        IndicateNode(current, "Test 5: Indicate last occurence of 'the':")
        ' Add 'lazy' and 'old' after 'the' (the LinkedListNode named current).
        sentence.AddAfter(current, "old")
        sentence.AddAfter(current, "lazy")
        IndicateNode(current, "Test 6: Add 'lazy' and 'old' after 'the':")
        ' Indicate 'fox' node.
        current = sentence.Find("fox")
        IndicateNode(current, "Test 7: Indicate the 'fox' node:")
        ' Add 'quick' and 'brown' before 'fox':
        sentence.AddBefore(current, "quick")
        sentence.AddBefore(current, "brown")
        IndicateNode(current, "Test 8: Add 'quick' and 'brown' before 'fox':")
        ' Keep a reference to the current node, 'fox',
        ' and to the previous node in the list. Indicate the 'dog' node.
        mark1 = current
        Dim mark2 As LinkedListNode(Of String) = current.Previous
        current = sentence.Find("dog")
        IndicateNode(current, "Test 9: Indicate the 'dog' node:")
        ' The AddBefore method throws an InvalidOperationException
        ' if you try to add a node that already belongs to a list.
        Console.WriteLine("Test 10: Throw exception by adding node (fox) already in the list:")
        Try
            sentence.AddBefore(current, mark1)
        Catch ex As InvalidOperationException
            Console.WriteLine("Exception message: {0}", ex.Message)
        End Try
        Console.WriteLine()
        ' Remove the node referred to by mark1, and then add it
        ' before the node referred to by current.
        ' Indicate the node referred to by current.
        sentence.Remove(mark1)
        sentence.AddBefore(current, mark1)
        IndicateNode(current, "Test 11: Move a referenced node (fox) before the current node (dog):")
        ' Remove the node referred to by current. 
        sentence.Remove(current)
        IndicateNode(current, "Test 12: Remove current node (dog) and attempt to indicate it:")
        ' Add the node after the node referred to by mark2.
        sentence.AddAfter(mark2, current)
        IndicateNode(current, "Test 13: Add node removed in test 11 after a referenced node (brown):")
        ' The Remove method finds and removes the
        ' first node that that has the specified value.
        sentence.Remove("old")
        Display(sentence, "Test 14: Remove node that has the value 'old':")
        ' When the linked list is cast to ICollection(Of String),
        ' the Add method adds a node to the end of the list.
        sentence.RemoveLast()
        Dim icoll As ICollection(Of String) = sentence
        icoll.Add("rhinoceros")
        Display(sentence, "Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':")
        Console.WriteLine("Test 16: Copy the list to an array:")
        ' Create an array with the same number of
        ' elements as the inked list.
        Dim sArray() As String = New String((sentence.Count) - 1) {}
        sentence.CopyTo(sArray, 0)
        For Each s As String In sArray
            Console.WriteLine(s)
        Next

        ' Release all the nodes.
        sentence.Clear()
        Console.WriteLine()
        Console.WriteLine("Test 17: Clear linked list. Contains 'jumps' = {0}", sentence.Contains("jumps"))
        Console.ReadLine()
    End Sub

    Private Shared Sub Display(ByVal words As LinkedList(Of String), ByVal test As String)
        Console.WriteLine(test)
        For Each word As String In words
            Console.Write((word + " "))
        Next
        Console.WriteLine()
        Console.WriteLine()
    End Sub

    Private Shared Sub IndicateNode(ByVal node As LinkedListNode(Of String), ByVal test As String)
        Console.WriteLine(test)
        If IsNothing(node.List) Then
            Console.WriteLine("Node '{0}' is not in the list." & vbLf, node.Value)
            Return
        End If
        Dim result As StringBuilder = New StringBuilder(("(" _
                        + (node.Value + ")")))
        Dim nodeP As LinkedListNode(Of String) = node.Previous

        While (Not (nodeP) Is Nothing)
            result.Insert(0, (nodeP.Value + " "))
            nodeP = nodeP.Previous

        End While
        node = node.Next

        While (Not (node) Is Nothing)
            result.Append((" " + node.Value))
            node = node.Next

        End While
        Console.WriteLine(result)
        Console.WriteLine()
    End Sub
End Class
'This code example produces the following output:
'
'The linked list values:
'the fox jumps over the dog 
'Test 1: Add 'today' to beginning of the list:
'today the fox jumps over the dog

'Test 2: Move first node to be last node:
'the fox jumps over the dog today

'Test 3: Change the last node to 'yesterday':
'the fox jumps over the dog yesterday

'Test 4: Move last node to be first node:
'yesterday the fox jumps over the dog

'Test 5: Indicate last occurence of 'the':
'the fox jumps over (the) dog

'Test 6: Add 'lazy' and 'old' after 'the':
'the fox jumps over (the) lazy old dog

'Test 7: Indicate the 'fox' node:
'the (fox) jumps over the lazy old dog

'Test 8: Add 'quick' and 'brown' before 'fox':
'the quick brown (fox) jumps over the lazy old dog

'Test 9: Indicate the 'dog' node:
'the quick brown fox jumps over the lazy old (dog)

'Test 10: Throw exception by adding node (fox) already in the list:
'Exception message: The LinkedList node belongs a LinkedList.

'Test 11: Move a referenced node (fox) before the current node (dog):
'the quick brown jumps over the lazy old fox (dog)

'Test 12: Remove current node (dog) and attempt to indicate it:
'Node 'dog' is not in the list.

'Test 13: Add node removed in test 11 after a referenced node (brown):
'the quick brown (dog) jumps over the lazy old fox

'Test 14: Remove node that has the value 'old':
'the quick brown dog jumps over the lazy fox 

'Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
'the quick brown dog jumps over the lazy rhinoceros

'Test 16: Copy the list to an array:
'the
'quick
'brown
'dog
'jumps
'over
'the
'lazy
'rhinoceros

'Test 17: Clear linked list. Contains 'jumps' = False
'

Comentários

LinkedList<T> é uma lista vinculada de uso geral. Ele dá suporte a enumeradores e implementa a interface ICollection, consistente com outras classes de coleção no .NET Framework.

LinkedList<T> fornece nós separados do tipo LinkedListNode<T>, portanto, inserção e remoção são operações O(1).

Você pode remover nós e reinseri-los, na mesma lista ou em outra lista, o que não resulta em nenhum objeto adicional alocado no heap. Como a lista também mantém uma contagem interna, obter a propriedade Count é uma operação O(1).

Cada nó em um objeto LinkedList<T> é do tipo LinkedListNode<T>. Como o LinkedList<T> está duplamente vinculado, cada nó aponta para frente para o nó Next e para trás para o nó Previous.

As listas que contêm tipos de referência têm melhor desempenho quando um nó e seu valor são criados ao mesmo tempo. LinkedList<T> aceita null como uma propriedade de Value válida para tipos de referência e permite valores duplicados.

Se o LinkedList<T> estiver vazio, as propriedades First e Last conterão null.

A classe LinkedList<T> não dá suporte a encadeamento, divisão, ciclos ou outros recursos que podem deixar a lista em um estado inconsistente. A lista permanece consistente em um único thread. O único cenário multithread suportado por LinkedList<T> são operações de leitura multithreaded.

Construtores

Propriedades

Métodos

Implantações explícitas de interface

Métodos de Extensão

Aplica-se a

Acesso thread-safe

Esse tipo não é thread-safe. Se o LinkedList<T> precisar ser acessado por vários threads, você precisará implementar seu próprio mecanismo de sincronização.

Um LinkedList<T> pode dar suporte a vários leitores simultaneamente, desde que a coleção não seja modificada. Mesmo assim, enumerar por meio de uma coleção não é intrinsecamente um procedimento thread-safe. No caso raro em que uma enumeração lida com acessos de gravação, a coleção deve ser bloqueada durante toda a enumeração. Para permitir que a coleção seja acessada por vários threads para leitura e gravação, você deve implementar sua própria sincronização.

Confira também

• LinkedListNode<T>