Create and write a string containing the symbol for Pi : Unicode « I18N Internationalization « C# / CSharp Tutorial

using System;
using System.IO;
using System.Text;

class MainClass
{
    public static void Main() 
    {        
        using (StreamWriter output = new StreamWriter("output.txt")) 
        {
            string srcString = "Area = \u03A0r^2";
            output.WriteLine("Source Text : " + srcString);
        }
    }
}

21.15.Unicode
	21.15.1.	Create and write a string containing the symbol for Pi
	21.15.2.	Use GetByteCount to return the number of bytes required to encode an array of Unicode characters, using UTF8Encoding.
	21.15.3.	Unicode Encoding Example
	21.15.4.	Decode a range of elements from a byte array and store them in a Unicode character array
	21.15.5.	Unicode Encoding Example
	21.15.6.	List the Unicode code point of each of the control characters.
	21.15.7.	Encode a range of elements from a Unicode character array and store the encoded bytes in a range of elements in a byte array.