C# Encoding GetChars(Byte[], Int32, Int32, Char[], Int32)

Description

Encoding GetChars(Byte[], Int32, Int32, Char[], Int32) When overridden in a derived class, decodes a sequence of bytes from the specified byte array into the specified character array.

Syntax

Encoding.GetChars(Byte[], Int32, Int32, Char[], Int32) has the following syntax.

public abstract int GetChars(
  byte[] bytes,//from w  w  w .  j  a  v  a  2  s. c  o m
  int byteIndex,
  int byteCount,
  char[] chars,
  int charIndex
)

Parameters

Encoding.GetChars(Byte[], Int32, Int32, Char[], Int32) has the following parameters.

• bytes - The byte array containing the sequence of bytes to decode.
• byteIndex - The index of the first byte to decode.
• byteCount - The number of bytes to decode.
• chars - The character array to contain the resulting set of characters.
• charIndex - The index at which to start writing the resulting set of characters.

Returns

Encoding.GetChars(Byte[], Int32, Int32, Char[], Int32) method returns The actual number of characters written into chars.

Example

The following example converts a string from one encoding to another.

//w  ww.  j  a  v a  2  s  . co m
using System;
using System.Text;

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

      Encoding ascii = Encoding.ASCII;
      Encoding unicode = Encoding.Unicode;

      byte[] unicodeBytes = unicode.GetBytes(unicodeString);

      byte[] asciiBytes = Encoding.Convert(unicode, ascii, unicodeBytes);

      char[] asciiChars = new char[ascii.GetCharCount(asciiBytes, 0, asciiBytes.Length)];
      ascii.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0);
      string asciiString = new string(asciiChars);

      Console.WriteLine("Original string: {0}", unicodeString);
      Console.WriteLine("Ascii converted string: {0}", asciiString);
   }
}

The code above generates the following result.