Internationalization C# Tutorial

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  4. Use GetByteCount to return the number of bytes required to encode an array of Unicode characters, using UTF8Encoding.
using System;
using System.Text;
class MainClass{
    public static void Main() {
        // Unicode characters.
        Char[] chars = new Char[] {
            '\u0023', // #
            '\u0025', // %
            '\u03a0', // Pi
            '\u03a3'  // Sigma
        };
        UTF8Encoding utf8 = new UTF8Encoding();
        int byteCount = utf8.GetByteCount(chars, 1, 2);
        Console.WriteLine("{0} bytes needed to encode characters.", byteCount);
    }
}