static void Main(string[] args)
{
try
{
do
{
WriteLine("Enter and number (press ESC to finish):");
string userInput = ReadLine();
if (Regex.IsMatch(userInput, @"^-?[\d]+$")) // takes positive and negative integers
{
long number = System.Int64.Parse(userInput);
WriteLine($"The number in words is: {NumberToWords.ToWords(number)}");
}
else
{
WriteLine("Invalid number entered.");
}
}while (ReadKey().Key != ConsoleKey.Escape);
}
catch (System.Exception ex)
{
WriteLine($"{ex.GetBaseException().ToString()} has message {ex.Message}");
}
}
