c# char array to string

using System;
using System.Text;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] char_arr = { 'H', 'e', 'l', 'l', 'o'};

            //converting char[] to string
            string str = new string(char_arr);

            //printing string
            Console.WriteLine("str = " + str);

            //hit ENTER to exit
            Console.ReadLine();
        }
    }
}

string chars = "Array";
char[] letters = chars.toCharArray();

text = characters.ToString();

char[] char_arr = {'Y','o','!'};
string str = new string(char_arr);

using System;
using System.Text;

namespace Example
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] char_example = { 'E', 'x', 'a', 'm', 'p', 'l', 'e' };
            string charToString = new string(char_example);
            Console.WriteLine(charToString);
            Console.ReadLine();
        }
    }
}