ArrayList.Sort Método
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Ordena los elementos en ArrayList o en una parte.
Sobrecargas
| Sort() |
Ordena todos los elementos de ArrayList. |
| Sort(IComparer) |
Ordena los elementos en la ArrayList completa usando el comparador especificado. |
| Sort(Int32, Int32, IComparer) |
Ordena los elementos en un intervalo de elementos de la matriz ArrayList usando el comparador especificado. |
Sort()
- Source:
- ArrayList.cs
- Source:
- ArrayList.cs
- Source:
- ArrayList.cs
Ordena todos los elementos de ArrayList.
public:
virtual void Sort();public virtual void Sort ();abstract member Sort : unit -> unit
override this.Sort : unit -> unitPublic Overridable Sub Sort ()Excepciones
ArrayList es de solo lectura.
Ejemplos
En el ejemplo de código siguiente se muestra cómo ordenar los valores de .ArrayList
using namespace System;
using namespace System::Collections;
void PrintValues( IEnumerable^ myList );
int main()
{
// Creates and initializes a new ArrayList.
ArrayList^ myAL = gcnew ArrayList;
myAL->Add( "The" );
myAL->Add( "quick" );
myAL->Add( "brown" );
myAL->Add( "fox" );
myAL->Add( "jumps" );
myAL->Add( "over" );
myAL->Add( "the" );
myAL->Add( "lazy" );
myAL->Add( "dog" );
// Displays the values of the ArrayList.
Console::WriteLine( "The ArrayList initially contains the following values:" );
PrintValues( myAL );
// Sorts the values of the ArrayList.
myAL->Sort();
// Displays the values of the ArrayList.
Console::WriteLine( "After sorting:" );
PrintValues( myAL );
}
void PrintValues( IEnumerable^ myList )
{
IEnumerator^ myEnum = myList->GetEnumerator();
while ( myEnum->MoveNext() )
{
Object^ obj = safe_cast<Object^>(myEnum->Current);
Console::WriteLine( " {0}", obj );
}
Console::WriteLine();
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
The
quick
brown
fox
jumps
over
the
lazy
dog
After sorting:
brown
dog
fox
jumps
lazy
over
quick
the
The
*/
using System;
using System.Collections;
public class SamplesArrayList1
{
public static void Main()
{
// Creates and initializes a new ArrayList.
ArrayList myAL = new ArrayList();
myAL.Add("The");
myAL.Add("quick");
myAL.Add("brown");
myAL.Add("fox");
myAL.Add("jumps");
myAL.Add("over");
myAL.Add("the");
myAL.Add("lazy");
myAL.Add("dog");
// Displays the values of the ArrayList.
Console.WriteLine("The ArrayList initially contains the following values:");
PrintValues(myAL);
// Sorts the values of the ArrayList.
myAL.Sort();
// Displays the values of the ArrayList.
Console.WriteLine("After sorting:");
PrintValues(myAL);
}
public static void PrintValues(IEnumerable myList)
{
foreach (Object obj in myList)
Console.WriteLine(" {0}", obj);
Console.WriteLine();
}
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
The
quick
brown
fox
jumps
over
the
lazy
dog
After sorting:
brown
dog
fox
jumps
lazy
over
quick
the
The
*/
Imports System.Collections
Public Class SamplesArrayList
Public Shared Sub Main()
' Creates and initializes a new ArrayList.
Dim myAL As New ArrayList()
myAL.Add("The")
myAL.Add("quick")
myAL.Add("brown")
myAL.Add("fox")
myAL.Add("jumps")
myAL.Add("over")
myAL.Add("the")
myAL.Add("lazy")
myAL.Add("dog")
' Displays the values of the ArrayList.
Console.WriteLine("The ArrayList initially contains the following values:")
PrintValues(myAL)
' Sorts the values of the ArrayList.
myAL.Sort()
' Displays the values of the ArrayList.
Console.WriteLine("After sorting:")
PrintValues(myAL)
End Sub
Public Shared Sub PrintValues(myList As IEnumerable)
Dim obj As [Object]
For Each obj In myList
Console.WriteLine(" {0}", obj)
Next obj
Console.WriteLine()
End Sub
End Class
' This code produces the following output.
'
' The ArrayList initially contains the following values:
' The
' quick
' brown
' fox
' jumps
' over
' the
' lazy
' dog
'
' After sorting:
' brown
' dog
' fox
' jumps
' lazy
' over
' quick
' the
' The
Comentarios
Este método usa Array.Sort, que usa el algoritmo QuickSort. El algoritmo QuickSort es una ordenación de comparación (también denominada ordenación inestable), lo que significa que una operación de comparación "menor o igual que" determina cuál de dos elementos debe aparecer primero en la lista ordenada final. Sin embargo, si dos elementos son iguales, es posible que su orden original no se conserve. Por el contrario, una ordenación estable conserva el orden de los elementos que son iguales. Para realizar una ordenación estable, debe implementar una interfaz personalizada IComparer para usarla con las demás sobrecargas de este método.
En promedio, este método es una O(n log n) operación, donde n es Count; en el peor de los casos es una O(n^2) operación.
Consulte también
Se aplica a
Sort(IComparer)
- Source:
- ArrayList.cs
- Source:
- ArrayList.cs
- Source:
- ArrayList.cs
Ordena los elementos en la ArrayList completa usando el comparador especificado.
public:
virtual void Sort(System::Collections::IComparer ^ comparer);public virtual void Sort (System.Collections.IComparer comparer);public virtual void Sort (System.Collections.IComparer? comparer);abstract member Sort : System.Collections.IComparer -> unit
override this.Sort : System.Collections.IComparer -> unitPublic Overridable Sub Sort (comparer As IComparer)Parámetros
- comparer
- IComparer
Implementación de IComparer que se va a usar al comparar elementos.
o bien
Referencia nula (Nothing en Visual Basic) para usar la implementación de IComparable de cada elemento.
Excepciones
ArrayList es de solo lectura.
Se produjo un error al comparar dos elementos.
null se pasa para comparer, y los elementos de la lista no implementan IComparable.
Ejemplos
En el ejemplo de código siguiente se muestra cómo ordenar los valores de un ArrayList mediante el comparador predeterminado y un comparador personalizado que invierte el criterio de ordenación.
using namespace System;
using namespace System::Collections;
void PrintIndexAndValues( IEnumerable^ myList );
ref class myReverserClass: public IComparer
{
private:
// Calls CaseInsensitiveComparer.Compare with the parameters reversed.
virtual int Compare( Object^ x, Object^ y ) sealed = IComparer::Compare
{
return ((gcnew CaseInsensitiveComparer)->Compare( y, x ));
}
};
int main()
{
// Creates and initializes a new ArrayList.
ArrayList^ myAL = gcnew ArrayList;
myAL->Add( "The" );
myAL->Add( "quick" );
myAL->Add( "brown" );
myAL->Add( "fox" );
myAL->Add( "jumps" );
myAL->Add( "over" );
myAL->Add( "the" );
myAL->Add( "lazy" );
myAL->Add( "dog" );
// Displays the values of the ArrayList.
Console::WriteLine( "The ArrayList initially contains the following values:" );
PrintIndexAndValues( myAL );
// Sorts the values of the ArrayList using the default comparer.
myAL->Sort();
Console::WriteLine( "After sorting with the default comparer:" );
PrintIndexAndValues( myAL );
// Sorts the values of the ArrayList using the reverse case-insensitive comparer.
IComparer^ myComparer = gcnew myReverserClass;
myAL->Sort( myComparer );
Console::WriteLine( "After sorting with the reverse case-insensitive comparer:" );
PrintIndexAndValues( myAL );
}
void PrintIndexAndValues( IEnumerable^ myList )
{
int i = 0;
IEnumerator^ myEnum = myList->GetEnumerator();
while ( myEnum->MoveNext() )
{
Object^ obj = safe_cast<Object^>(myEnum->Current);
Console::WriteLine( "\t[{0}]:\t{1}", i++, obj );
}
Console::WriteLine();
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
[0]: The
[1]: quick
[2]: brown
[3]: fox
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After sorting with the default comparer:
[0]: brown
[1]: dog
[2]: fox
[3]: jumps
[4]: lazy
[5]: over
[6]: quick
[7]: the
[8]: The
After sorting with the reverse case-insensitive comparer:
[0]: the
[1]: The
[2]: quick
[3]: over
[4]: lazy
[5]: jumps
[6]: fox
[7]: dog
[8]: brown
*/
using System;
using System.Collections;
public class SamplesArrayList2
{
public class myReverserClass : IComparer
{
// Calls CaseInsensitiveComparer.Compare with the parameters reversed.
int IComparer.Compare(Object x, Object y)
{
return ((new CaseInsensitiveComparer()).Compare(y, x));
}
}
public static void Main()
{
// Creates and initializes a new ArrayList.
ArrayList myAL = new ArrayList();
myAL.Add("The");
myAL.Add("quick");
myAL.Add("brown");
myAL.Add("fox");
myAL.Add("jumps");
myAL.Add("over");
myAL.Add("the");
myAL.Add("lazy");
myAL.Add("dog");
// Displays the values of the ArrayList.
Console.WriteLine("The ArrayList initially contains the following values:");
PrintIndexAndValues(myAL);
// Sorts the values of the ArrayList using the default comparer.
myAL.Sort();
Console.WriteLine("After sorting with the default comparer:");
PrintIndexAndValues(myAL);
// Sorts the values of the ArrayList using the reverse case-insensitive comparer.
IComparer myComparer = new myReverserClass();
myAL.Sort(myComparer);
Console.WriteLine("After sorting with the reverse case-insensitive comparer:");
PrintIndexAndValues(myAL);
}
public static void PrintIndexAndValues(IEnumerable myList)
{
int i = 0;
foreach (Object obj in myList)
Console.WriteLine("\t[{0}]:\t{1}", i++, obj);
Console.WriteLine();
}
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
[0]: The
[1]: quick
[2]: brown
[3]: fox
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After sorting with the default comparer:
[0]: brown
[1]: dog
[2]: fox
[3]: jumps
[4]: lazy
[5]: over
[6]: quick
[7]: the
[8]: The
After sorting with the reverse case-insensitive comparer:
[0]: the
[1]: The
[2]: quick
[3]: over
[4]: lazy
[5]: jumps
[6]: fox
[7]: dog
[8]: brown
*/
Imports System.Collections
Public Class SamplesArrayList
Public Class myReverserClass
Implements IComparer
' Calls CaseInsensitiveComparer.Compare with the parameters reversed.
Public Function Compare( ByVal x As Object, ByVal y As Object) As Integer _
Implements IComparer.Compare
Return New CaseInsensitiveComparer().Compare(y, x)
End Function 'IComparer.Compare
End Class
Public Shared Sub Main()
' Creates and initializes a new ArrayList.
Dim myAL As New ArrayList()
myAL.Add("The")
myAL.Add("quick")
myAL.Add("brown")
myAL.Add("fox")
myAL.Add("jumps")
myAL.Add("over")
myAL.Add("the")
myAL.Add("lazy")
myAL.Add("dog")
' Displays the values of the ArrayList.
Console.WriteLine("The ArrayList initially contains the following values:")
PrintIndexAndValues(myAL)
' Sorts the values of the ArrayList using the default comparer.
myAL.Sort()
Console.WriteLine("After sorting with the default comparer:")
PrintIndexAndValues(myAL)
' Sorts the values of the ArrayList using the reverse case-insensitive comparer.
Dim myComparer = New myReverserClass()
myAL.Sort(myComparer)
Console.WriteLine("After sorting with the reverse case-insensitive comparer:")
PrintIndexAndValues(myAL)
End Sub
Public Shared Sub PrintIndexAndValues(myList As IEnumerable)
Dim i As Integer = 0
Dim obj As [Object]
For Each obj In myList
Console.WriteLine(vbTab + "[{0}]:" + vbTab + "{1}", i, obj)
i = i + 1
Next obj
Console.WriteLine()
End Sub
End Class
'This code produces the following output.
'The ArrayList initially contains the following values:
' [0]: The
' [1]: quick
' [2]: brown
' [3]: fox
' [4]: jumps
' [5]: over
' [6]: the
' [7]: lazy
' [8]: dog
'
'After sorting with the default comparer:
' [0]: brown
' [1]: dog
' [2]: fox
' [3]: jumps
' [4]: lazy
' [5]: over
' [6]: quick
' [7]: the
' [8]: The
'
'After sorting with the reverse case-insensitive comparer:
' [0]: the
' [1]: The
' [2]: quick
' [3]: over
' [4]: lazy
' [5]: jumps
' [6]: fox
' [7]: dog
' [8]: brown
Comentarios
Use el Sort método para ordenar una lista de objetos con un comparador personalizado que implemente la IComparer interfaz . Si pasa null para comparer, este método usa la IComparable implementación de cada elemento. En este caso, debe asegurarse de que los objetos contenidos en la lista implementan la IComparer interfaz o se producirá una excepción.
Además, el uso de la IComparable implementación significa que la lista realiza una ordenación de comparación (también denominada ordenación inestable); es decir, si dos elementos son iguales, es posible que su orden no se conserve. Por el contrario, una ordenación estable conserva el orden de los elementos que son iguales. Para realizar una ordenación estable, debe implementar una interfaz personalizada IComparer .
En promedio, este método es una O(n log n) operación, donde n es Count; en el peor de los casos es una O(n^2) operación.
Consulte también
Se aplica a
Sort(Int32, Int32, IComparer)
- Source:
- ArrayList.cs
- Source:
- ArrayList.cs
- Source:
- ArrayList.cs
Ordena los elementos en un intervalo de elementos de la matriz ArrayList usando el comparador especificado.
public:
virtual void Sort(int index, int count, System::Collections::IComparer ^ comparer);public virtual void Sort (int index, int count, System.Collections.IComparer comparer);public virtual void Sort (int index, int count, System.Collections.IComparer? comparer);abstract member Sort : int * int * System.Collections.IComparer -> unit
override this.Sort : int * int * System.Collections.IComparer -> unitPublic Overridable Sub Sort (index As Integer, count As Integer, comparer As IComparer)Parámetros
- index
- Int32
Índice inicial de base cero del intervalo que se va a ordenar.
- count
- Int32
Longitud del intervalo que se va a ordenar.
- comparer
- IComparer
Implementación de IComparer que se va a usar al comparar elementos.
o bien
Referencia nula (Nothing en Visual Basic) para usar la implementación de IComparable de cada elemento.
Excepciones
index y count no especifican un intervalo válido en ArrayList.
ArrayList es de solo lectura.
Se produjo un error al comparar dos elementos.
Ejemplos
En el ejemplo de código siguiente se muestra cómo ordenar los valores de un intervalo de elementos de mediante ArrayList el comparador predeterminado y un comparador personalizado que invierte el criterio de ordenación.
using namespace System;
using namespace System::Collections;
void PrintIndexAndValues( IEnumerable^ myList );
ref class myReverserClass: public IComparer
{
private:
// Calls CaseInsensitiveComparer.Compare with the parameters reversed.
virtual int Compare( Object^ x, Object^ y ) = IComparer::Compare
{
return ((gcnew CaseInsensitiveComparer)->Compare( y, x ));
}
};
int main()
{
// Creates and initializes a new ArrayList.
ArrayList^ myAL = gcnew ArrayList;
myAL->Add( "The" );
myAL->Add( "QUICK" );
myAL->Add( "BROWN" );
myAL->Add( "FOX" );
myAL->Add( "jumps" );
myAL->Add( "over" );
myAL->Add( "the" );
myAL->Add( "lazy" );
myAL->Add( "dog" );
// Displays the values of the ArrayList.
Console::WriteLine( "The ArrayList initially contains the following values:" );
PrintIndexAndValues( myAL );
// Sorts the values of the ArrayList using the default comparer.
myAL->Sort( 1, 3, nullptr );
Console::WriteLine( "After sorting from index 1 to index 3 with the default comparer:" );
PrintIndexAndValues( myAL );
// Sorts the values of the ArrayList using the reverse case-insensitive comparer.
IComparer^ myComparer = gcnew myReverserClass;
myAL->Sort( 1, 3, myComparer );
Console::WriteLine( "After sorting from index 1 to index 3 with the reverse case-insensitive comparer:" );
PrintIndexAndValues( myAL );
}
void PrintIndexAndValues( IEnumerable^ myList )
{
int i = 0;
IEnumerator^ myEnum = myList->GetEnumerator();
while ( myEnum->MoveNext() )
{
Object^ obj = safe_cast<Object^>(myEnum->Current);
Console::WriteLine( "\t[{0}]:\t{1}", i++, obj );
}
Console::WriteLine();
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
[0]: The
[1]: QUICK
[2]: BROWN
[3]: FOX
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After sorting from index 1 to index 3 with the default comparer:
[0]: The
[1]: BROWN
[2]: FOX
[3]: QUICK
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After sorting from index 1 to index 3 with the reverse case-insensitive comparer:
[0]: The
[1]: QUICK
[2]: FOX
[3]: BROWN
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
*/
using System;
using System.Collections;
public class SamplesArrayList3
{
public class myReverserClass : IComparer
{
// Calls CaseInsensitiveComparer.Compare with the parameters reversed.
int IComparer.Compare(Object x, Object y)
{
return ((new CaseInsensitiveComparer()).Compare(y, x));
}
}
public static void Main()
{
// Creates and initializes a new ArrayList.
ArrayList myAL = new ArrayList();
myAL.Add("The");
myAL.Add("QUICK");
myAL.Add("BROWN");
myAL.Add("FOX");
myAL.Add("jumps");
myAL.Add("over");
myAL.Add("the");
myAL.Add("lazy");
myAL.Add("dog");
// Displays the values of the ArrayList.
Console.WriteLine("The ArrayList initially contains the following values:");
PrintIndexAndValues(myAL);
// Sorts the values of the ArrayList using the default comparer.
myAL.Sort(1, 3, null);
Console.WriteLine("After sorting from index 1 to index 3 with the default comparer:");
PrintIndexAndValues(myAL);
// Sorts the values of the ArrayList using the reverse case-insensitive comparer.
IComparer myComparer = new myReverserClass();
myAL.Sort(1, 3, myComparer);
Console.WriteLine("After sorting from index 1 to index 3 with the reverse case-insensitive comparer:");
PrintIndexAndValues(myAL);
}
public static void PrintIndexAndValues(IEnumerable myList)
{
int i = 0;
foreach (Object obj in myList)
Console.WriteLine("\t[{0}]:\t{1}", i++, obj);
Console.WriteLine();
}
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
[0]: The
[1]: QUICK
[2]: BROWN
[3]: FOX
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After sorting from index 1 to index 3 with the default comparer:
[0]: The
[1]: BROWN
[2]: FOX
[3]: QUICK
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After sorting from index 1 to index 3 with the reverse case-insensitive comparer:
[0]: The
[1]: QUICK
[2]: FOX
[3]: BROWN
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
*/
Imports System.Collections
Public Class SamplesArrayList
Public Class myReverserClass
Implements IComparer
' Calls CaseInsensitiveComparer.Compare with the parameters reversed.
Public Function Compare( ByVal x As Object, ByVal y As Object) As Integer _
Implements IComparer.Compare
Return New CaseInsensitiveComparer().Compare(y, x)
End Function 'IComparer.Compare
End Class
Public Shared Sub Main()
' Creates and initializes a new ArrayList.
Dim myAL As New ArrayList()
myAL.Add("The")
myAL.Add("QUICK")
myAL.Add("BROWN")
myAL.Add("FOX")
myAL.Add("jumps")
myAL.Add("over")
myAL.Add("the")
myAL.Add("lazy")
myAL.Add("dog")
' Displays the values of the ArrayList.
Console.WriteLine("The ArrayList initially contains the following values:")
PrintIndexAndValues(myAL)
' Sorts the values of the ArrayList using the default comparer.
myAL.Sort(1, 3, Nothing)
Console.WriteLine("After sorting from index 1 to index 3 with the default comparer:")
PrintIndexAndValues(myAL)
' Sorts the values of the ArrayList using the reverse case-insensitive comparer.
Dim myComparer = New myReverserClass()
myAL.Sort(1, 3, myComparer)
Console.WriteLine("After sorting from index 1 to index 3 with the reverse case-insensitive comparer:")
PrintIndexAndValues(myAL)
End Sub
Public Shared Sub PrintIndexAndValues(myList As IEnumerable)
Dim i As Integer = 0
Dim obj As [Object]
For Each obj In myList
Console.WriteLine(vbTab + "[{0}]:" + vbTab + "{1}", i, obj)
i = i + 1
Next obj
Console.WriteLine()
End Sub
End Class
'This code produces the following output.
'The ArrayList initially contains the following values:
' [0]: The
' [1]: QUICK
' [2]: BROWN
' [3]: FOX
' [4]: jumps
' [5]: over
' [6]: the
' [7]: lazy
' [8]: dog
'
'After sorting from index 1 to index 3 with the default comparer:
' [0]: The
' [1]: BROWN
' [2]: FOX
' [3]: QUICK
' [4]: jumps
' [5]: over
' [6]: the
' [7]: lazy
' [8]: dog
'
'After sorting from index 1 to index 3 with the reverse case-insensitive comparer:
' [0]: The
' [1]: QUICK
' [2]: FOX
' [3]: BROWN
' [4]: jumps
' [5]: over
' [6]: the
' [7]: lazy
' [8]: dog
Comentarios
Si comparer se establece nullen , este método realiza una ordenación de comparación (también denominada ordenación inestable); es decir, si dos elementos son iguales, es posible que su orden no se conserve. Por el contrario, una ordenación estable conserva el orden de los elementos que son iguales. Para realizar una ordenación estable, debe implementar una interfaz personalizada IComparer .
En promedio, este método es una O(n log n) operación, donde n es count; en el peor de los casos es una O(n^2) operación.
Consulte también
Se aplica a
Comentarios
Próximamente: A lo largo de 2024 iremos eliminando gradualmente GitHub Issues como mecanismo de comentarios sobre el contenido y lo sustituiremos por un nuevo sistema de comentarios. Para más información, vea: https://aka.ms/ContentUserFeedback.
Enviar y ver comentarios de