C#

GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();

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

namespace Lab05_E00995877
{
    class Person
    {
        public string Name;
        public decimal Cash;
        public decimal GiveCash;

        public decimal ReceiveCash(decimal amount)
        {
            if (amount > 0)
            {
       //      person       money punched in
                Cash -= amount;
                return Cash;
            }
            else
            {
                MessageBox.Show(amount + "  isnt an amount I'll take",
                    Name + " says..");
                return 0;
            }
        }
    }
}

private void button2_Click(object sender, EventArgs e)
{
    FileStream filetoupload = new FileStream("C:\\projects\\testfile.csv", FileMode.Open);
    Uri address = new Uri("http://devsrvr/hints/");

    HttpWebRequest webreq = HttpWebRequest.Create(address) as HttpWebRequest;

    // set type to post
    webreq.Method = "POST";
    webreq.ContentType = "application/x-www-form-urlencoded";
    webreq.Timeout = 15 * 1000;
    // data we want to send, which is pretty much a file

    byte[] bytedata = UTF8Encoding.UTF8.GetBytes(filetoupload.ToString());
    webreq.ContentLength = bytedata.Length;

    try
    {
        using (Stream poststream = webreq.GetRequestStream())
        {
            poststream.Write(bytedata, 0, bytedata.Length);
        }
        MessageBox.Show("done!!");
    }
    catch (Exception ex)
    {
        ex.InnerException.ToString();
        ex.Source.ToString();
        ex.Message.ToString();
    }
}