Types, Accuracy and String Formatting.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TypesForMoney
{
    class Program
    {
        static void Main(string[] args)
        {
            int i = 1;
            float f = 1f;
            double d = 1d;
            decimal m = 1m;

            Console.WriteLine(i);  //1
            Console.WriteLine(f);  //1
            Console.WriteLine(d);  //1
            Console.WriteLine(m);  //1

            Console.WriteLine(i.ToString("C"));  //$1.00
            Console.WriteLine(f.ToString("C"));  //$1.00
            Console.WriteLine(d.ToString("C"));  //$1.00
            Console.WriteLine(m.ToString("C"));  //$1.00

            i /= 10;
            f /= 10;
            d /= 10;
            m /= 10;

            Console.WriteLine(i.ToString("G20"));  //0
            Console.WriteLine(f.ToString("G20"));  //0.100000001
            Console.WriteLine(d.ToString("G20"));  //0.10000000000000001
            Console.WriteLine(m.ToString("G20"));  //0.1

            Console.Read();
        }
    }
}