Esempio n. 1
0
        private int coinCount(Coin.Denomination denominationEnumeral)
        {
            var roll =
                    from coin in box
                    where coin.DenominationEnumeral == denominationEnumeral
                    select coin;

            return roll.Count();
        }
Esempio n. 2
0
        // take a coin of the specified denomination out of the box
        public Boolean Withdraw(Coin.Denomination ACoinDenomination)
        {
            var aCoin =
                from firstCoin in box
                where firstCoin.DenominationEnumeral == ACoinDenomination
                select firstCoin;

            Boolean result = false;
            if (aCoin.Count() > 0)
            {
                result = box.Remove(aCoin.First());
            }
            return result;
        }
Esempio n. 3
0
 // put a coin in the coin box
 public void Deposit(Coin ACoin)
 {
     box.Add(ACoin);
 }
Esempio n. 4
0
        static void Main(string[] args)
        {
            PurchasePrice sodaPrice = new PurchasePrice(0.35M);
            CanRack sodaRack = new CanRack();
            CoinBox changeBox = new CoinBox(new List<Coin> { 
                new Coin(Coin.Denomination.QUARTER), new Coin(Coin.Denomination.DIME), 
                new Coin(Coin.Denomination.NICKEL), new Coin(Coin.Denomination.QUARTER), 
                new Coin(Coin.Denomination.QUARTER), new Coin(Coin.Denomination.DIME) });

            Console.WriteLine("Welcome to the .NET C# Soda Vending Machine");

            Boolean timeToExit = false;
            do
            {
                sodaRack.DisplayCanRack();
                Console.Write("Please insert {0:c} worth of coins: ", sodaPrice.PriceDecimal);

                decimal totalValueInserted = 0M;
                while (totalValueInserted < sodaPrice.PriceDecimal)
                {
                    Coin coinInserted = null;
                    while (coinInserted == null)
                    {
                        try
                        {
                            // get the coin inserted
                            string coinNameInserted = Console.ReadLine().ToUpper();
                            coinInserted = new Coin(coinNameInserted);
                        }
                        catch (System.ArgumentException)
                        {
                            Console.WriteLine("That's not a recognized coin. Please retry.");
                        }
                    }
                    Console.WriteLine("You have inserted a {0} worth {1:c}", coinInserted, coinInserted.ValueOf);
                    changeBox.Deposit(coinInserted);

                    // running total of the value of the coins inserted
                    totalValueInserted += coinInserted.ValueOf;
                    Console.WriteLine("Total value inserted is {0:c}", totalValueInserted);
                }

                // select a flavor of soda
                Boolean canDispensed = false;
                while (!canDispensed)
                {
                    Flavor flavorEnumeral = Flavor.REGULAR;
                    Boolean flavorChosen = false;
                    Console.Write("What flavor would you like? : ");
                    while (!flavorChosen)
                    {
                        try
                        {
                            // get the flavor request
                            string flavorName = Console.ReadLine().ToUpper();
                            // Well, this used to be trouble.
                            flavorEnumeral = FlavorOps.ToFlavor(flavorName);
                            flavorChosen = true;
                        }
                        catch (System.ArgumentException)
                        {
                            Console.WriteLine("That's not a recognized flavor. Please retry.");
                        }
                    }

                    if (!sodaRack.IsEmpty(flavorEnumeral))
                    {
                        sodaRack.RemoveACanOf(flavorEnumeral);
                        Console.WriteLine("Thanks, here is your can of {0}.", flavorEnumeral);
                        canDispensed = true;
                    }
                    else
                    {
                        Console.WriteLine("We are out of {0}", flavorEnumeral);
                    }
                }

                Console.Write("Exit the vending machine? (y/n): ");
                string response = Console.ReadLine();
                timeToExit = response.Trim().ToUpper().StartsWith("Y");

            } while (!timeToExit);

            Console.WriteLine("Contents of Coin Box:");

            Console.WriteLine("{0}\tHalf Dollar(s)", changeBox.HalfDollarCount);
            Console.WriteLine("{0}\tQuarter(s)", changeBox.QuarterCount);
            Console.WriteLine("{0}\tDime(s)", changeBox.DimeCount);
            Console.WriteLine("{0}\tNickel(s)", changeBox.NickelCount);
            Console.WriteLine("{0}\tSlug(s)", changeBox.SlugCount);

            Console.WriteLine();
            Console.WriteLine("Total value in coin box is {0:c}", changeBox.ValueOf);
        }