BitConverter クラスとは? わかりやすく解説

BitConverter クラス

基本データ型バイト配列に、バイト配列基本データ型変換します

名前空間: System
アセンブリ: mscorlib (mscorlib.dll 内)
構文構文

解説解説
使用例使用例

BitConverter クラス一部メソッド使用方法次のコード例示します

' Example of BitConverter class methods.
Imports System
Imports Microsoft.VisualBasic

Module BitConverterDemo

    Sub Main( )

        Const formatter As String
 = "{0,25}{1,30}"
 
        Dim aDoubl      As Double
   = 0.1111111111111111111
        Dim aSingl      As Single
   = 0.1111111111111111111
        Dim aLong       As Long
     = 1111111111111111111
        Dim anInt       As Integer
  = 1111111111
        Dim aShort      As Short
    = 11111
        Dim aChar       As Char
     = "*"c
        Dim aBool       As Boolean
  = True

        Console.WriteLine( _
            "This example of methods of the BitConverter class"
 & _
            vbCrLf & "generates the following output."
 & vbCrLf )
        Console.WriteLine( formatter, "argument",
 "Byte array" )
        Console.WriteLine( formatter, "--------",
 "----------" )

        ' Convert values to Byte arrays and display them.
        Console.WriteLine( formatter, aDoubl, _
            BitConverter.ToString( BitConverter.GetBytes( aDoubl ) ) )
        Console.WriteLine( formatter, aSingl, _
            BitConverter.ToString( BitConverter.GetBytes( aSingl ) ) )
        Console.WriteLine( formatter, aLong, _
            BitConverter.ToString( BitConverter.GetBytes( aLong ) ) )
        Console.WriteLine( formatter, anInt, _
            BitConverter.ToString( BitConverter.GetBytes( anInt ) ) )
        Console.WriteLine( formatter, aShort, _
            BitConverter.ToString( BitConverter.GetBytes( aShort ) ) )
        Console.WriteLine( formatter, aChar, _
            BitConverter.ToString( BitConverter.GetBytes( aChar ) ) )
        Console.WriteLine( formatter, aBool, _
            BitConverter.ToString( BitConverter.GetBytes( aBool ) ) )
    End Sub
End Module

' This example of methods of the BitConverter class
' generates the following output.
' 
'                  argument                    Byte array
'                  --------                    ----------
'         0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
'                 0.1111111                   39-8E-E3-3D
'       1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
'                1111111111                   C7-35-3A-42
'                     11111                         67-2B
'                         *                         2A-00
'                      True                            01
// Example of BitConverter class methods.
using System;

class BitConverterDemo
{
    public static void Main(
 )
    {
        const string formatter = "{0,25}{1
,30}";
 
        double  aDoubl  = 0.1111111111111111111;
        float   aSingl  = 0.1111111111111111111F;
        long    aLong   = 1111111111111111111;
        int     anInt   = 1111111111;
        short   aShort  = 11111;
        char    aChar   = '*';
        bool    aBool   = true;

        Console.WriteLine( 
            "This example of methods of the BitConverter class"
 +
            "\ngenerates the following output.\n" );
        Console.WriteLine( formatter, "argument", "byte array"
 );
        Console.WriteLine( formatter, "--------", "----------"
 );

        // Convert values to Byte arrays and display them.
        Console.WriteLine( formatter, aDoubl, 
            BitConverter.ToString( BitConverter.GetBytes( aDoubl ) ) );
        Console.WriteLine( formatter, aSingl, 
            BitConverter.ToString( BitConverter.GetBytes( aSingl ) ) );
        Console.WriteLine( formatter, aLong, 
            BitConverter.ToString( BitConverter.GetBytes( aLong ) ) );
        Console.WriteLine( formatter, anInt, 
            BitConverter.ToString( BitConverter.GetBytes( anInt ) ) );
        Console.WriteLine( formatter, aShort, 
            BitConverter.ToString( BitConverter.GetBytes( aShort ) ) );
        Console.WriteLine( formatter, aChar, 
            BitConverter.ToString( BitConverter.GetBytes( aChar ) ) );
        Console.WriteLine( formatter, aBool, 
            BitConverter.ToString( BitConverter.GetBytes( aBool ) ) );
    }
}

/*
This example of methods of the BitConverter class
generates the following output.

                 argument                    byte array
                 --------                    ----------
        0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
                0.1111111                   39-8E-E3-3D
      1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
               1111111111                   C7-35-3A-42
                    11111                         67-2B
                        *                         2A-00
                     True                            01
*/
// Example of BitConverter class methods.
using namespace System;
int main()
{
   String^ formatter = "{0,25}{1,30}";
   double aDoubl = 0.1111111111111111111;
   float aSingl = 0.1111111111111111111F;
   __int64 aLong = 1111111111111111111;
   int anInt = 1111111111;
   short aShort = 11111;
   __wchar_t aChar = L'*';
   bool aBool = true;
   Console::WriteLine( "This example of methods of the BitConverter class"
   "\ngenerates the following output.\n" );
   Console::WriteLine( formatter, "argument", "byte array" );
   Console::WriteLine( formatter, "--------", "----------" );
   
   // Convert values to Byte arrays and display them.
   Console::WriteLine( formatter, aDoubl, BitConverter::ToString( BitConverter::GetBytes(
 aDoubl ) ) );
   Console::WriteLine( formatter, aSingl, BitConverter::ToString( BitConverter::GetBytes(
 aSingl ) ) );
   Console::WriteLine( formatter, aLong, BitConverter::ToString( BitConverter::GetBytes(
 aLong ) ) );
   Console::WriteLine( formatter, anInt, BitConverter::ToString( BitConverter::GetBytes(
 anInt ) ) );
   Console::WriteLine( formatter, aShort, BitConverter::ToString( BitConverter::GetBytes(
 aShort ) ) );
   Console::WriteLine( formatter, aChar, BitConverter::ToString( BitConverter::GetBytes(
 aChar ) ) );
   Console::WriteLine( formatter, aBool, BitConverter::ToString( BitConverter::GetBytes(
 aBool ) ) );
}

/*
This example of methods of the BitConverter class
generates the following output.

                 argument                    byte array
                 --------                    ----------
        0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
                0.1111111                   39-8E-E3-3D
      1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
               1111111111                   C7-35-3A-42
                    11111                         67-2B
                        *                         2A-00
                     True                            01
*/
// Example of BitConverter class methods.
import System.*;

class BitConverterDemo 
{
    public static void main(String[]
 args) 
    {
        final System.String formatter = "{0,25}{1,30}";

        double aDoubl = 0.1111111111111111111;
        float aSingl = 0.1111111111111111111F;
        long aLong = 1111111111111111111L;
        int anInt = 1111111111;
        short aShort = 11111;
        char aChar = '*';
        boolean aBool = true;

        Console.WriteLine(("This example of methods of the BitConverter class"
            + "\ngenerates the following output.\n"));
        Console.WriteLine(formatter, "argument", "byte array");
        Console.WriteLine(formatter, "--------", "----------");

        // Convert values to Byte arrays and display them.
        Console.WriteLine(formatter, (System.Double)aDoubl, 
            BitConverter.ToString(BitConverter.GetBytes(aDoubl)));
        Console.WriteLine(formatter, (System.Single)aSingl, 
            BitConverter.ToString(BitConverter.GetBytes(aSingl)));
        Console.WriteLine(formatter, (Int64)aLong, 
            BitConverter.ToString(BitConverter.GetBytes(aLong)));
        Console.WriteLine(formatter, (Int32)anInt, 
            BitConverter.ToString(BitConverter.GetBytes(anInt)));
        Console.WriteLine(formatter, (Int16)aShort, 
            BitConverter.ToString(BitConverter.GetBytes(aShort)));
        Console.WriteLine(formatter, (System.Char)aChar, 
            BitConverter.ToString(BitConverter.GetBytes(aChar)));
        Console.WriteLine(formatter, (System.Boolean)aBool, 
            BitConverter.ToString(BitConverter.GetBytes(aBool)));
    } //main
} //BitConverterDemo
/*
This example of methods of the BitConverter class
generates the following output.

                 argument                    byte array
                 --------                    ----------
        0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
                0.1111111                   39-8E-E3-3D
      1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
               1111111111                   C7-35-3A-42
                    11111                         67-2B
                        *                         2A-00
                     True                            01
*/
継承階層継承階層
System.Object
  System.BitConverter
スレッド セーフスレッド セーフ
この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバ場合は、スレッド セーフであるとは限りません。
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