using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace zSharp2008.zMath
{
    class cMath
    {
        string error = string.Empty;
        public string Error
        {
            get
            {
                return error;
            }
        }

        public string DecimalToBinary(string data)
        {
            string result = string.Empty;
            int rem = 0;
            try
            {
                if (!IsNumeric(data))
                    error = "Invalid Value - This is not a numeric value";
                else
                {
                    int num = int.Parse(data);
                    while (num > 0)
                    {
                        rem = num % 2;
                        num = num / 2;
                        result = rem.ToString() + result;
                    }
                }
            }
            catch (Exception ex)
            {
                error = ex.Message;
            }
            return result;
        }
        private bool IsNumeric(string number)
        {
            bool result = false;
            try
            {
                int temp = int.Parse(number);
                result = true;
            }
            catch (Exception ex)
            {
                //Do nothing.
            }
            return result;
        }
    }
}