C#

public class MultiThreadingClass
{
    public MultiThreadingClass()
    {
    }

    private object m_objSync = new object();
    private int m_nValueA = 0; 
    private int m_szText = string.Empty;

    public SyncObj
    {
        get 
        { 
            return m_objSync;
        }
    }

    public Value
    {
        get 
        {
            lock(objSync)
            {
                return m_nValue;
            }
        }
        set
        {
            lock(objSync)
            {
                m_nValue = value;
            }
        }
    }

    public Text
    {
        get 
        {
            lock(objSync)
            {
                return m_szText;
            }
        }
        set
        {
            lock(objSync)
            {
                m_szText = value;
            }
        }
    }
}

Bjorn Spruit wrote:

Is it a database connection you wish to establish ?

private void button1_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < 4; i++)
            {
                Thread thread = new Thread(new ParameterizedThreadStart(round));
                thread.Start();
                thread.Join();
                Thread.Sleep(100);
            }
        }
 private void round(object val)
        {
            System.Net.IPAddress myIP;
            System.Net.IPEndPoint  myServer;
            Socket socket;
            string ip = (string)val; 

            try
            {
                myIP = System.Net.IPAddress.Parse(ip);
                myServer = new System.Net.IPEndPoint(myIP, Int32.Parse("20000"));
                socket=new Socket(AddressFamily.InterNetwork,SocketType.Stream ,ProtocolType.Tcp);
                socket.Connect(myServer);
                NetworkStream netStream=new NetworkStream(socket);
                Byte[] byteMessage=new Byte[640];
                string sendMessage="hello server";
                byteMessage=System.Text.Encoding.Default.GetBytes( sendMessage.ToCharArray());
                netStream.Write(byteMessage,0,byteMessage.Length);
                netStream.Flush();
                netStream.Close();
                socket.Close();
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message);
            }
        }

g.SmoothingMode = SmoothingMode.AntiAlias;
g.TextRenderingHint = TextRenderingHint.AntiAlias;
g.InterpolationMode = InterpolationMode.HighQualityBilinear;

g.TextRenderingHint = TextRenderingHint.AntiAlias;