Back to notes -- Keyboard shortcut: 'u'        next -- Keyboard shortcut: 'n'  Slide program -- Keyboard shortcut: 't'    Sample encodings, conversions, and decodings of a string of Danish characters.Lecture 10 - slide 11 : 40
Program 1
using System;
using System.Text;

/* Adapted from an example provided by Microsoft */
class ConvertExampleClass{
  public static void Main(){
    string unicodeStr =          // "A  u    i  "
        "A \u00E6 u \u00E5 \u00E6 \u00F8 i \u00E6 \u00E5";    

    // Different encodings.
    Encoding ascii = Encoding.ASCII,                          
             unicode = Encoding.Unicode,
             utf8 = Encoding.UTF8,
             isoLatin1 = Encoding.GetEncoding("iso-8859-1");  

    // Encodes the characters in a string to a byte array:
    byte[] unicodeBytes = unicode.GetBytes(unicodeStr),       
           asciiBytes =   ascii.GetBytes(unicodeStr),         
           utf8Bytes =   utf8.GetBytes(unicodeStr),
           isoLatin1Bytes =   utf8.GetBytes(unicodeStr);

    // Convert from byte array in unicode to byte array in utf8:
    byte[] utf8BytesFromUnicode =                             
      Encoding.Convert(unicode, utf8, unicodeBytes);          
                                                              
    // Convert from byte array in utf8 to byte array in ascii:
    byte[] asciiBytesFromUtf8 =                               
      Encoding.Convert(utf8, ascii, utf8Bytes);
            
    // Decodes the bytes in byte arrays to a char array:
    char[] utf8Chars = utf8.GetChars(utf8BytesFromUnicode);    
    char[] asciiChars = ascii.GetChars(asciiBytesFromUtf8);    

    // Convert char[] to string:
    string utf8String = new string(utf8Chars),                 
           asciiString = new String(asciiChars);               

    // Display the strings created before and after the conversion.
    Console.WriteLine("Original string: {0}", unicodeStr);     
    Console.WriteLine("String via UTF-8: {0}", utf8String);    
                                                               
    Console.WriteLine("Original string: {0}", unicodeStr);               
    Console.WriteLine("ASCII converted string: {0}", asciiString);       
  }                                                                      
}
 
 
 
 
 
 
 
A text string with Danish characters.
 
 
Getting access to different Encodings.
 
 
 
 
 
Encodes the text string to byte arrays,
with use of GetBytes.
 
 
 
 
Illustration of Encoding.Convert, which
transforms a byte array from one encoding
to another.
 
Ditto.
 
 
 
Decodes byte arrays to char arrays, with
use of GetChar.s
 
 
Converting a char array to a string;
This is done by a String constructor.
 
 
Print the original string.
Print utf8String, which has been encoded
as an UTF8 byte array.
Print the original string.
Prints asciiString, which has been
represented as an ASCIII byte array.