public void Purchases()
{
Console.WriteLine("Would you like to purchase anything? If so, please enter: 'cups', 'lemons', 'sugar', or 'ice'. If not, please enter 'no'.");
string itemToPurchase = Console.ReadLine().ToLower();
switch (itemToPurchase)
{
case "cups":
inventory.cup.DisplayPrice();
budget.SubtractCostOfCupsFromBalance(inventory);
Purchases();
break;
case "lemons":
inventory.lemon.DisplayPrice();
budget.SubtractCostOfLemonsFromBalance(inventory);
Purchases();
break;
case "sugar":
inventory.sugar.DisplayPrice();
budget.SubtractCostOfSugarFromBalance(inventory);
Purchases();
break;
case "ice":
inventory.ice.DisplayPrice();
budget.SubtractCostOfIceFromBalance(inventory);
Purchases();
break;
case "no":
inventory.CurrentInventory();
recipe.QuantityOfLemonadePossible(inventory);
break;
default:
Console.WriteLine("That was an invalid entry. Please press enter to continue.");
Purchases();
break;
}
}