using System;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Threading.Tasks;

​

namespace LISTING_2_55_Finding_components

{

    public interface IAccount

    {

        void PayInFunds(decimal amount);

        bool WithdrawFunds(decimal amount);

        decimal GetBalance();

    }

​

    public class BankAccount : IAccount

    {

        protected decimal balance = 0;

​

        public virtual bool WithdrawFunds(decimal amount)

        {

            if (balance < amount)

            {

                return false;

            }

            balance = balance - amount;

            return true;

        }

​

        void IAccount.PayInFunds(decimal amount)

        {

            balance = balance + amount;

        }

​

        decimal IAccount.GetBalance()

        {

            return balance;

        }

    }

​

    public class BabyAccount : BankAccount, IAccount

    {

        public override bool WithdrawFunds(decimal amount)

        {

            if (amount > 10)

            {

                return false;

            }

​

            if (balance < amount)

            {

                return false;

            }

            balance = balance - amount;

            return true;

        }

    }

​

    public class Program

    {

        public static void Main(string[] args)

        {

            Assembly thisAssembly = Assembly.GetExecutingAssembly();

​

            List<Type> AccountTypes = new List<Type>();

​

            foreach ( Type t in thisAssembly.GetTypes() )

            {

                if (t.IsInterface)

                    continue;

​

                if(typeof(IAccount).IsAssignableFrom(t))

                {

                    AccountTypes.Add(t);

                }

            }

​

            foreach (Type t in AccountTypes)

                Console.WriteLine(t.Name);

        }

    }

}