using System;
using System.IO;

namespace Science
{
    public class Error : Exception
    {
        public Error()
        {
        }

        public void Write(string message)
        {
            string logFile = "ErrorLog.txt";
            StreamWriter logWriter;
            if (File.Exists(logFile))
            {
                logWriter = File.AppendText(logFile);
            }
            else
            {
                logWriter = File.CreateText(logFile);
            }
            logWriter.WriteLine("Error Found on " + DateTime.Now);
            logWriter.WriteLine(message);
            logWriter.Close();           
        }
    }
}