Encodingとは？ わかりやすく解説

<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public MustInherit Class
 Encoding
    Implements ICloneable

Dim instance As Encoding

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public abstract class Encoding : ICloneable

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public ref class Encoding abstract : ICloneable

/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public abstract class Encoding implements ICloneable

SerializableAttribute 
ComVisibleAttribute(true) 
public abstract class Encoding implements ICloneable

Imports System
Imports System.Text
Imports Microsoft.VisualBasic

Namespace Convert_Example
    Class MyConvertExampleClass
        Shared Sub Main()
            Dim unicodeString As String
 = "This string contains the unicode character Pi("
 & ChrW(&H03A0) & ")"

            ' Create two different encodings.
            Dim ascii As Encoding = Encoding.ASCII
            Dim [unicode] As Encoding = Encoding.Unicode

            ' Convert the string into a byte[].
            Dim unicodeBytes As Byte()
 = [unicode].GetBytes(unicodeString)

            ' Perform the conversion from one encoding to the other.
            Dim asciiBytes As Byte()
 = Encoding.Convert([unicode], ascii, unicodeBytes)

            ' Convert the new byte[] into a char[] and then into a string.
            ' This is a slightly different approach to converting to
 illustrate
            ' the use of GetCharCount/GetChars.
            Dim asciiChars(ascii.GetCharCount(asciiBytes, 0, asciiBytes.Length))
 As Char
            ascii.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0)
            Dim asciiString As New
 String(asciiChars)

            ' Display the strings created before and after the conversion.
            Console.WriteLine("Original string: {0}",
 unicodeString)
            Console.WriteLine("Ascii converted string: {0}",
 asciiString)
        End Sub
    End Class
End Namespace

using System;
using System.Text;

namespace ConvertExample
{
   class ConvertExampleClass
   {
      static void Main()
      {
         string unicodeString = "This string
 contains the unicode character Pi(\u03a0)";

         // Create two different encodings.
         Encoding ascii = Encoding.ASCII;
         Encoding unicode = Encoding.Unicode;

         // Convert the string into a byte[].
         byte[] unicodeBytes = unicode.GetBytes(unicodeString);

         // Perform the conversion from one encoding to the other.
         byte[] asciiBytes = Encoding.Convert(unicode, ascii, unicodeBytes);
            
         // Convert the new byte[] into a char[] and then into a string.
         // This is a slightly different approach to converting to illustrate
         // the use of GetCharCount/GetChars.
         char[] asciiChars = new char[ascii.GetCharCount(asciiBytes,
 0, asciiBytes.Length)];
         ascii.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0);
         string asciiString = new string(asciiChars);

         // Display the strings created before and after the conversion.
         Console.WriteLine("Original string: {0}", unicodeString);
         Console.WriteLine("Ascii converted string: {0}",
 asciiString);
      }
   }
}

using namespace System;
using namespace System::Text;
int main()
{
   String^ unicodeString = "This string contains the unicode
 character Pi(\u03a0)";
   
   // Create two different encodings.
   Encoding^ ascii = Encoding::ASCII;
   Encoding^ unicode = Encoding::Unicode;
   
   // Convert the string into a Byte->Item[].
   array<Byte>^unicodeBytes = unicode->GetBytes( unicodeString );
   
   // Perform the conversion from one encoding to the other.
   array<Byte>^asciiBytes = Encoding::Convert( unicode, ascii, unicodeBytes
 );
   
   // Convert the new Byte into[] a char and[] then into a string.
   // This is a slightly different approach to converting to illustrate
   // the use of GetCharCount/GetChars.
   array<Char>^asciiChars = gcnew array<Char>(ascii->GetCharCount(
 asciiBytes, 0, asciiBytes->Length ));
   ascii->GetChars( asciiBytes, 0, asciiBytes->Length, asciiChars, 0 );
   String^ asciiString = gcnew String( asciiChars );
   
   // Display the strings created before and after the conversion.
   Console::WriteLine( "Original String*: {0}", unicodeString );
   Console::WriteLine( "Ascii converted String*: {0}", asciiString );
}

package ConvertExample; 

import System.*;
import System.Text.*;

class ConvertExampleClass
{
    public static void main(String[]
 args)
    {
        String unicodeString = 
                "This string contains the unicode character
 Pi(\u03a0)";

        // Create two different encodings.
        Encoding ascii = Encoding.get_ASCII();
        Encoding unicode = Encoding.get_Unicode();

        // Convert the string into a byte[].
        ubyte unicodeBytes[] = unicode.GetBytes(unicodeString);

        // Perform the conversion from one encoding to the other.
        ubyte asciiBytes[] = Encoding.Convert(unicode, ascii, unicodeBytes);

        // Convert the new byte[] into a char[] and then into a string.
        // This is a slightly different approach to converting to illustrate
        // the use of GetCharCount/GetChars.
        char asciiChars[] = new 
                char[ascii.GetCharCount(asciiBytes, 0, asciiBytes.length)];
        ascii.GetChars(asciiBytes, 0, asciiBytes.length, asciiChars, 0);
        String asciiString = new String(asciiChars);

        // Display the strings created before and after the conversion.
        Console.WriteLine("Original string: {0}", unicodeString);
        Console.WriteLine("Ascii converted string: {0}",
 asciiString);
    } //main
} //ConvertExampleClass 

Protected Sub New

Dim instance As New Encoding

protected Encoding ()

protected:
Encoding ()

protected Encoding ()

protected function Encoding ()

Protected Sub New ( _
    codePage As Integer _
)

Dim codePage As Integer

Dim instance As New Encoding(codePage)

protected Encoding (
    int codePage
)

protected:
Encoding (
    int codePage
)

protected Encoding (
    int codePage
)

protected function Encoding (
    codePage : int
)