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

 class Program
    {
        static int a = 0;
        static int b = 0;
        static Random random = new Random();
        
        static void Main(string[] args)
        {

            Thread obj = new Thread(Division);
            obj.Start();

            Division();
        }

        static void Division()
        {

            for (int i = 0; i <= 500; i++)
            {

                try
                {
                   
                        //Choosing random numbers between 1 to 5
                        a = random.Next(1, 10);
                        b = random.Next(1, 10);


                        //Dividing
                        double ans = a / b;


                        //Reset Variables
                        a = 0;
                        b = 0;

                        Console.WriteLine("Answer : {0} --> {1}", i, ans);
                    
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.ToString());
                }
            }
        }
    }

class Program
    {
        static int a = 0;
        static int b = 0;
        static Random random = new Random();
        static readonly object _object = new object();
        static void Main(string[] args)
        {

            Thread obj = new Thread(Division);
            obj.Start();

            Division();
        }

        static void Division()
        {

            for (int i = 0; i <= 500; i++)
            {

                try
                {
                    Monitor.Enter(_object);
                   
                        //Choosing random numbers between 1 to 5
                        a = random.Next(1, 10);
                        b = random.Next(1, 10);


                        //Dividing
                        double ans = a / b;


                        //Reset Variables
                        a = 0;
                        b = 0;

                        Console.WriteLine("Answer : {0} --> {1}", i, ans);
                    Monitor.Exit(_object);

                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.ToString());
                }
            }
        }
    }

 static void Main()
  { 
    using (var mutex = new Mutex (false, "dotnettips.info Demo"))
    {
     
      if (!mutex.WaitOne (TimeSpan.FromSeconds (3), false))
      {
        Console.WriteLine ("Another app instance is running. Bye!");
        return;
      }
      RunProgram();
    }
  }
 
  static void RunProgram()
  {
    Console.WriteLine ("Running. Press Enter to exit");
    Console.ReadLine();
  }

CDS error: Failed to finish active transfer for https://softwareupdate.vmware.com/cds/index.xml: CDS_HTTP_HOST_RESOLVE_ERROR

installerDefaults.autoSoftwareUpdateEnabled = "no"
installerDefaults.componentDownloadEnabled = "no"
installerDefaults.dataCollectionEnabled = "no"

C:\Documents and Settings\All Users\Application Data\VMware\VMware Workstation\config.ini

C:\Program Files\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\Assemblies\WebMatrix.Data.dll

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
 <add key="systemData:defaultProvider" value="System.Data.SqlClient" />
</appSettings>
<connectionStrings>
 <add name="Northwind"
     connectionString="Data Source=(local);Integrated Security = true;Initial Catalog=Northwind"
     providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>

using System;
using WebMatrix.Data;

namespace TestMicrosoftDataLibrary
{
 class Program
 {
     static void Main(string[] args)
     {
         getProducts();

         Console.Read();
         Console.WriteLine("Press a key ...");
     }

     private static void getProducts()
     {
         using (var db = Database.Open("Northwind"))
         {
             foreach (var product in db.Query("select * from products where UnitsInStock < @0", 20))
             {
                 Console.WriteLine(product.ProductName + " " + product.UnitsInStock);
             }
         }
     }
 }
}

private static void getCustomerFax()
{
         using (var db = Database.Open("Northwind"))
         {
             var product = db.Query("SELECT * FROM [Customers] WHERE City=@0", "Paris").FirstOrDefault();
             if (product != null)
                 Console.WriteLine(product.Fax);
             else
                 Console.WriteLine("not found.");
         }
}

private static void ExecQuery()
{
         using (var db = Database.Open("Northwind"))
         {
            int affectedRecords = db.Execute("UPDATE [Customers] SET fax = fax + '*' WHERE  City = @0", "Paris");
            Console.WriteLine("Affected records: {0}", affectedRecords);
         }
}

private static void ExecSPShowResult()
{
         using (var db = Database.Open("Northwind"))
         {
             var customer = db.Query("exec CustOrderHist @0", "ALFKI").FirstOrDefault();
             if (customer != null)
             {
                 Console.WriteLine(customer.ProductName);
             }
         }
}

private static void useFuncs()
{
         using (var db = Database.Open("Northwind"))
         {
             var query = db.Query("SELECT dbo.FN_GET_CATEGORY_TREE(@0) as Rec1", 3);
             foreach(var tree in query)
             {
                 Console.WriteLine(tree.Rec1);
             }
         }         
}