Welcome to the Lounge

public static string NumberToWords(int number)
{
    if (number == 0)
        return "zero";

    if (number < 0)
        return "minus " + NumberToWords(Math.Abs(number));

    string words = "";

    if ((number / 1000000) > 0)
    {
        words += NumberToWords(number / 1000000) + " million ";
        number %= 1000000;
    }

    if ((number / 1000) > 0)
    {
        words += NumberToWords(number / 1000) + " thousand ";
        number %= 1000;
    }

    if ((number / 100) > 0)
    {
        words += NumberToWords(number / 100) + " hundred ";
        number %= 100;
    }

    if (number > 0)
    {
        if (words != "")
            words += "and ";

        var unitsMap = new[] { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
        var tensMap = new[] { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };

        if (number < 20)
            words += unitsMap[number];
        else
        {
            words += tensMap[number / 10];
            if ((number % 10) > 0)
                words += "-" + unitsMap[number % 10];
        }
    }

    return words;
}

Marc A. Brown wrote:

1. Why not?

Marc A. Brown wrote:

To learn the language. Beats the heck out of "Hello World".

Marc A. Brown wrote:

4. Why not?

_Maxxx_ wrote:

he said he did it at work, so I assumed it was something required for the
business

public enum ShortScale : long
{
    Zero = 0 , One = 1 , Two = 2 , Three = 3 , Four = 4 , Five = 5 , Six = 6 , Seven = 7 , Eight = 8  
    , Nine = 9 , Ten = 10 , Eleven = 11 , Twelve = 12 , Thirteen = 13 , Fourteen = 14 , Fifteen = 15  
    , Sixteen = 16 , Seventeen = 17 , Eighteen = 18 , Nineteen = 19 
            
    , [PIEBALD.Types.NumNuts.HyphenatedAttribute] Twenty   = 20  
...            
    , [PIEBALD.Types.NumNuts.CountedAttribute] Hundred     = 100                   
...  
}

public enum Roman
{
    Nulla = 0 
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] I  = 1     
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] IV = 4    
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] V  = 5     
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] IX = 9    
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] X  = 10    
...
}

public sealed class TestClass
{
    public static readonly System.Numerics.BigInteger Zero   = 0 ;
    public static readonly System.Numerics.BigInteger One    = 1 ;
...
    [PIEBALD.Types.NumNuts.HyphenatedAttribute]
    public static readonly System.Numerics.BigInteger Twenty  = 20 ;
...
    [PIEBALD.Types.NumNuts.CountedAttribute]
    public static readonly System.Numerics.BigInteger Hundred     = 100 ;
...
    [PIEBALD.Types.NumNuts.CountedAttribute]
    public static readonly System.Numerics.BigInteger Decillion   = Thousand * Nonillion ;
...
}