//member methods
public int GetNumberOfLemonsUsedInRecipe(Inventory inventory)
{
UserInterface.LemonRecipePrompt();
int lemonsPerPitcher;
while (!int.TryParse(Console.ReadLine(), out lemonsPerPitcher) || lemonsPerPitcher > inventory.LemonCount || lemonsPerPitcher <= 0)
{
UserInterface.InvalidLemonRecipeEntry();
}
return(lemonsPerPitcher);
}