using System;

using System.Data.SqlClient;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        new Program().Connecting();  

    }

     public void Connecting()  

        {  

            using (  

                     // Creating Connection  

                     SqlConnection con = new SqlConnection("data source=.; database=student; integrated security=SSPI")  

                 )  

            {  

                con.Open();  

                Console.WriteLine("Connection Established Successfully");  

            }  

        }  

}