BitArray.Get(Int32) 메서드

정의

네임스페이스:

System.Collections

어셈블리:

System.Collections.dll

Source:

BitArray.cs

BitArray의 특정 위치에서 비트 값을 가져옵니다.

public:
 bool Get(int index);

public bool Get (int index);

member this.Get : int -> bool

Public Function Get (index As Integer) As Boolean

매개 변수

index

Int32

가져올 값의 0부터 시작하는 인덱스입니다.

반환

Boolean

index 위치의 비트 값입니다.

예외

ArgumentOutOfRangeException

index가 0보다 작은 경우

또는

index가 BitArray의 요소 수보다 크거나 같은 경우

예제

다음 코드 예제에서는 설정 하 고 에서 특정 요소를 가져오는 방법을 보여 입니다 BitArray.

using namespace System;
using namespace System::Collections;
void PrintIndexAndValues( IEnumerable^ myCol );
int main()
{
   
   // Creates and initializes a BitArray.
   BitArray^ myBA = gcnew BitArray( 5 );
   
   // Displays the properties and values of the BitArray.
   Console::WriteLine( "myBA values:" );
   PrintIndexAndValues( myBA );
   
   // Sets all the elements to true.
   myBA->SetAll( true );
   
   // Displays the properties and values of the BitArray.
   Console::WriteLine( "After setting all elements to true," );
   PrintIndexAndValues( myBA );
   
   // Sets the last index to false.
   myBA->Set( myBA->Count - 1, false );
   
   // Displays the properties and values of the BitArray.
   Console::WriteLine( "After setting the last element to false," );
   PrintIndexAndValues( myBA );
   
   // Gets the value of the last two elements.
   Console::WriteLine( "The last two elements are: " );
   Console::WriteLine( "    at index {0} : {1}", myBA->Count - 2, myBA->Get( myBA->Count - 2 ) );
   Console::WriteLine( "    at index {0} : {1}", myBA->Count - 1, myBA->Get( myBA->Count - 1 ) );
}

void PrintIndexAndValues( IEnumerable^ myCol )
{
   int i = 0;
   IEnumerator^ myEnum = myCol->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Object^ obj = safe_cast<Object^>(myEnum->Current);
      Console::WriteLine( "    [{0}]:    {1}", i++, obj );
   }

   Console::WriteLine();
}

/* 
 This code produces the following output.
 
 myBA values:
     [0]:    False
     [1]:    False
     [2]:    False
     [3]:    False
     [4]:    False

 After setting all elements to true,
     [0]:    True
     [1]:    True
     [2]:    True
     [3]:    True
     [4]:    True

 After setting the last element to false,
     [0]:    True
     [1]:    True
     [2]:    True
     [3]:    True
     [4]:    False

 The last two elements are:
     at index 3 : True
     at index 4 : False

 */

using System;
using System.Collections;
public class SamplesBitArray  {

   public static void Main()  {

      // Creates and initializes a BitArray.
      BitArray myBA = new BitArray( 5 );

      // Displays the properties and values of the BitArray.
      Console.WriteLine( "myBA values:" );
      PrintIndexAndValues( myBA );

      // Sets all the elements to true.
      myBA.SetAll( true );

      // Displays the properties and values of the BitArray.
      Console.WriteLine( "After setting all elements to true," );
      PrintIndexAndValues( myBA );

      // Sets the last index to false.
      myBA.Set( myBA.Count - 1, false );

      // Displays the properties and values of the BitArray.
      Console.WriteLine( "After setting the last element to false," );
      PrintIndexAndValues( myBA );

      // Gets the value of the last two elements.
      Console.WriteLine( "The last two elements are: " );
      Console.WriteLine( "    at index {0} : {1}", myBA.Count - 2, myBA.Get( myBA.Count - 2 ) );
      Console.WriteLine( "    at index {0} : {1}", myBA.Count - 1, myBA.Get( myBA.Count - 1 ) );
   }

   public static void PrintIndexAndValues( IEnumerable myCol )  {
      int i = 0;
      foreach ( Object obj in myCol ) {
         Console.WriteLine( "    [{0}]:    {1}", i++, obj );
      }
      Console.WriteLine();
   }
}
/*
This code produces the following output.

myBA values:
    [0]:    False
    [1]:    False
    [2]:    False
    [3]:    False
    [4]:    False

After setting all elements to true,
    [0]:    True
    [1]:    True
    [2]:    True
    [3]:    True
    [4]:    True

After setting the last element to false,
    [0]:    True
    [1]:    True
    [2]:    True
    [3]:    True
    [4]:    False

The last two elements are:
    at index 3 : True
    at index 4 : False

*/

Imports System.Collections

Public Class SamplesBitArray    
    
    Public Shared Sub Main()
        
        ' Creates and initializes a BitArray.
        Dim myBA As New BitArray(5)
        
        ' Displays the properties and values of the BitArray.
        Console.WriteLine("myBA values:")
        PrintIndexAndValues(myBA)
        
        ' Sets all the elements to true.
        myBA.SetAll(True)
        
        ' Displays the properties and values of the BitArray.
        Console.WriteLine("After setting all elements to true,")
        PrintIndexAndValues(myBA)
        
        ' Sets the last index to false.
        myBA.Set(myBA.Count - 1, False)
        
        ' Displays the properties and values of the BitArray.
        Console.WriteLine("After setting the last element to false,")
        PrintIndexAndValues(myBA)
        
        ' Gets the value of the last two elements.
        Console.WriteLine("The last two elements are: ")
        Console.WriteLine("    at index {0} : {1}", _
           myBA.Count - 2, myBA.Get(myBA.Count - 2))
        Console.WriteLine("    at index {0} : {1}", _
           myBA.Count - 1, myBA.Get(myBA.Count - 1))
    End Sub

    Public Shared Sub PrintIndexAndValues(myCol As IEnumerable)
        Dim i As Integer
        Dim obj As Object
        i = 0
        For Each obj In  myCol
            Console.WriteLine("    [{0}]:    {1}", i, obj)
            i = i + 1
        Next obj
        Console.WriteLine()
    End Sub

End Class

' This code produces the following output.
' 
' myBA values:
'     [0]:    False
'     [1]:    False
'     [2]:    False
'     [3]:    False
'     [4]:    False
' 
' After setting all elements to true,
'     [0]:    True
'     [1]:    True
'     [2]:    True
'     [3]:    True
'     [4]:    True
' 
' After setting the last element to false,
'     [0]:    True
'     [1]:    True
'     [2]:    True
'     [3]:    True
'     [4]:    False
' 
' The last two elements are:
'     at index 3 : True
'     at index 4 : False

설명

이 메서드는 작업입니다 O(1) .