c# programing

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace StringManipulationPost
{
    class Program
    {
        static void Main(string[] args)
        {
          
              char[] characterArray =                             
                              { 'b', 'i', 'r', 't', 'h', ' ', 'd', 'a', 'y' };
         string originalString = "Welcome to C# programming!";
        string string1 = originalString;                    
        string string2 = new string( characterArray );      
        string string3 = new string( characterArray, 6, 3 );
        string string4 = new string( 'C', 5 );              


    Console.WriteLine( "string1 = " + "\"" + string1 + "\"\n"+
         "string2 = " + "\"" + string2 + "\"\n" +
         "string3 = " + "\"" + string3 + "\"\n" +
         "string4 = " + "\"" + string4 + "\"\n" );

        Console.ReadLine();    
           
        }
    }
}