ArrayList.Reverse メソッド ()
ArrayList 全体の要素の順序を反転させます。
Overloads Public Overridable Sub Reverse()
[C#]
public virtual void Reverse();
[C++]
public: virtual void Reverse();
[JScript]
public function Reverse();
例外
| 例外の種類 | 条件 |
|---|---|
| NotSupportedException | ArrayList が読み取り専用です。 |
使用例
ArrayList 内の値の並べ替え順序を反転させる方法の例を次に示します。
Imports System
Imports System.Collections
Imports Microsoft.VisualBasic
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:")
PrintIndexAndValues(myAL)
' Reverses the sort order of the values of the ArrayList.
myAL.Reverse()
' Displays the values of the ArrayList.
Console.WriteLine("After reversing:")
PrintIndexAndValues(myAL)
End Sub
Public Shared Sub PrintIndexAndValues(myList As IEnumerable)
Dim i As Integer = 0
Dim myEnumerator As System.Collections.IEnumerator = _
myList.GetEnumerator()
While myEnumerator.MoveNext()
Console.WriteLine(ControlChars.Tab + "[{0}]:" + ControlChars.Tab _
+ "{1}", i, myEnumerator.Current)
i = i + 1
End While
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 reversing:
' [0]: dog
' [1]: lazy
' [2]: the
' [3]: over
' [4]: jumps
' [5]: fox
' [6]: brown
' [7]: quick
' [8]: The
[C#]
using System;
using System.Collections;
public class SamplesArrayList {
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 );
// Reverses the sort order of the values of the ArrayList.
myAL.Reverse();
// Displays the values of the ArrayList.
Console.WriteLine( "After reversing:" );
PrintIndexAndValues( myAL );
}
public static void PrintIndexAndValues( IEnumerable myList ) {
int i = 0;
System.Collections.IEnumerator myEnumerator = myList.GetEnumerator();
while ( myEnumerator.MoveNext() )
Console.WriteLine( "\t[{0}]:\t{1}", i++, myEnumerator.Current );
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 reversing:
[0]: dog
[1]: lazy
[2]: the
[3]: over
[4]: jumps
[5]: fox
[6]: brown
[7]: quick
[8]: The
*/
[C++]
#using <mscorlib.dll>
using namespace System;
using namespace System::Collections;
void PrintIndexAndValues( IEnumerable* myList );
int main() {
// Creates and initializes a new ArrayList instance.
ArrayList* myAL = new ArrayList();
myAL->Add( S"The" );
myAL->Add( S"quick" );
myAL->Add( S"brown" );
myAL->Add( S"fox" );
myAL->Add( S"jumped" );
myAL->Add( S"over" );
myAL->Add( S"the" );
myAL->Add( S"lazy" );
myAL->Add( S"dog" );
// Displays the values of the ArrayList.
Console::WriteLine( "The ArrayList instance initially contains the following values:" );
PrintIndexAndValues( myAL );
// Reverses the sort order of the values of the ArrayList.
myAL->Reverse();
// Displays the values of the ArrayList.
Console::WriteLine( "After reversing:" );
PrintIndexAndValues( myAL );
}
void PrintIndexAndValues( IEnumerable* myList ) {
int i = 0;
System::Collections::IEnumerator* myEnumerator = myList->GetEnumerator();
while ( myEnumerator->MoveNext() )
Console::WriteLine( "\t[{0}]:\t{1}", __box(i++), myEnumerator->Current );
Console::WriteLine();
}
/*
This code produces the following output.
The ArrayList instance initially contains the following values:
[0]: The
[1]: quick
[2]: brown
[3]: fox
[4]: jumped
[5]: over
[6]: the
[7]: lazy
[8]: dog
After reversing:
[0]: dog
[1]: lazy
[2]: the
[3]: over
[4]: jumped
[5]: fox
[6]: brown
[7]: quick
[8]: The
*/
[JScript]
import System;
import System.Collections;
// Creates and initializes a new ArrayList.
var myAL : ArrayList = new ArrayList();
myAL.Add( "The" );
myAL.Add( "quick" );
myAL.Add( "brown" );
myAL.Add( "fox" );
myAL.Add( "jumped" );
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 );
// Reverses the sort order of the values of the ArrayList.
myAL.Reverse();
// Displays the values of the ArrayList.
Console.WriteLine( "After reversing:" );
PrintIndexAndValues( myAL );
function PrintIndexAndValues( myList : IEnumerable ) {
var i : int = 0;
var myEnumerator : System.Collections.IEnumerator = myList.GetEnumerator();
while ( myEnumerator.MoveNext() )
Console.WriteLine( "\t[{0}]:\t{1}", i++, myEnumerator.Current );
Console.WriteLine();
}
/*
This code produces the following output.
The ArrayList initially contains the following values:
[0]: The
[1]: quick
[2]: brown
[3]: fox
[4]: jumped
[5]: over
[6]: the
[7]: lazy
[8]: dog
After reversing:
[0]: dog
[1]: lazy
[2]: the
[3]: over
[4]: jumped
[5]: fox
[6]: brown
[7]: quick
[8]: The
*/
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET, Common Language Infrastructure (CLI) Standard
参照
ArrayList クラス | ArrayList メンバ | System.Collections 名前空間 | ArrayList.Reverse オーバーロードの一覧