using System;   // For Console class, and IComparable<T> interface

namespace DemoTypes
{
    public struct Money : IComparable<Money>
    {
        // Private fields.
        private int mCentsAmount;
        private const string mCurrencySymbol = "$";

        // Public constructor.
        public Money(int dollars, int cents)
        {
            mCentsAmount = (dollars * 100) + cents;
        }

        // Another public constructor.
        public Money(double amount)
        {
            mCentsAmount = (int)(amount * 100);
        }

        // Return a string representation of Money object.
        public override string ToString()
        {
            return String.Format("{0}{1:f2}", mCurrencySymbol, mCentsAmount / 100.0);
        }

        // Compare with another Money object.
        public int CompareTo(Money other)
        {
            if (this.mCentsAmount < other.mCentsAmount)
                return -1;
            else if (this.mCentsAmount == other.mCentsAmount)
                return 0;
            else
                return +1;
        }
    }

    
    static class StructuresDemo
    {
        public static void DoDemo()
        {
            Console.WriteLine("\nStructuresDemo");
            Console.WriteLine("------------------------------------------------------");

            Money[] values = new Money[5];
            values[0] = new Money(9, 50);
            values[1] = new Money(4, 80);
            values[2] = new Money(8, 70);
            values[3] = new Money(2.50);
            values[4] = new Money(6);

            Console.WriteLine("Unsorted array:");
            foreach (Money v in values)
            {
                Console.WriteLine("{0}", v);
            }

            Array.Sort(values);

            Console.WriteLine("Sorted array:");
            foreach (Money v in values)
            {
                Console.WriteLine("{0}", v);
            }
        }
    }
}