public void Run()
{
var numbersToSum = new List <double> ();
CurrentConsole.WriteLine("Please enter numbers you want me to add. When you have finished just enter 'done'.");
while (true)
{
CurrentConsole.Write("Enter a number or type 'done': ");
var inputString = Console.ReadLine();
var inputNumber = 0.0;
if (double.TryParse(inputString, out inputNumber))
{
numbersToSum.Add(inputNumber);
}
else
{
if (inputString.ToLowerInvariant() == "done")
{
break;
}
CurrentConsole.WriteLine(string.Format("I'm sorry, '{0}' is not a number or the word done.", inputString));
}
}
var sum = Summarizer.Sum(numbersToSum.ToArray());
CurrentConsole.WriteLine(string.Format("The sum of the numbers {0} is {1}", string.Join(", ", numbersToSum.Select(n => n.ToString())), sum));
}