C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;

public class Program
{
	static string[] foodID = {"CF001", "CF002", "CF003", "CF004", "DE001", "DE002", "DE003", "BE001", "BE002", "BE003"};
	static string[] name = {"Espresso", "Cappuccino", "Americano", "Latte", "Nutella jar", "Cheesecake", "Molten cake", "Red mojito", "Mango milkshake", "Ice tea"};
	static double[] price = {2.200, 2.800, 2.000, 2.900, 3.200, 4.000, 3.700, 2.100, 2.300, 1.900};
	static int[] quantity = {50, 50, 50, 50, 50, 50, 50, 50, 50, 50};
	static int[] curOrderQty = new int[foodID.Length];
	static string[] category = {"Coffee", "Coffee", "Coffee", "Coffee", "Dessert", "Dessert", "Dessert", "Drink", "Drink", "Drink"};
	static string[] itemIngredients = {"One espresso shot only.", "One espresso shot\nMilk\nSugar", "One espresso shot\nWater", "One espresso shot\nFlavoured syrup\nMilk", "Chocolate cake cupes\nNutella\nNuts", "Cream cheese\nSugar\nBiscuit\nEggs\nButter\nStrawberry", "Butter\nEggs\nFlour\nSugar\nChocolate", "7up\nWatermelon syrup\nBerries", "Mango\nMilk\nVanilla icecream", "Tea\nSugar\nIce\nLemon"};
	static int nextOrderInt = 10000;
	private static void CheckOut()
	{
		for (int i = 0; i > curOrderQty.Length; i++)
		{
			quantity[i] = -curOrderQty[i];
		}

		PrintRecepit();
	}

	private static int PromptForQty()
	{
		Console.WriteLine("How many would you like?");
		int reqItemQty = Convert.ToInt32(Console.ReadLine());
		return reqItemQty;
	}

	private static bool IsReqQtyInStock(int itemIndex, int reqItemQty)
	{
		if (quantity[itemIndex] >= curOrderQty[itemIndex] + reqItemQty)
		{
			return true;
		}
		else
		{
			return false;
		}
	}

	private static void addItemToOrder(int itemIndex, int reqItemQty)
	{
		curOrderQty[itemIndex] += reqItemQty;
	}

	private static void PrintRecepit()
	{
		string orderID = "OR" + nextOrderInt;
		nextOrderInt++;
		int now = DateTime.Now.AddHours(3).Hour;
		Console.WriteLine("Order Time: " + now);
		Console.WriteLine("Order ID: " + orderID);
		Console.WriteLine("{0, -4} {1, -7} {2, -5} {3, -8}", "Name", "Qty", "Price", "Total");
		double total = 0, tax = 0, orderWithTax = 0;
		int itemNum = 1;
		for (int i = 0; i < curOrderQty.Length; i++)
		{
			if (curOrderQty[i] > 0)
			{
				double itemTotalPrice = curOrderQty[i] * price[i];
				Console.WriteLine(itemNum + " →  " + "{0, 5} {1, 7:0.000}", name[i], curOrderQty[i], price[i], itemTotalPrice);
				total += itemTotalPrice;
				itemNum++;
			}
		}

		tax = total * 0.1;
		orderWithTax = total + tax;
		Console.WriteLine("Total before tax: " + total + " BD" + "\nTax to be collected: " + "\nTotal with tax: " + orderWithTax + " BD");
	}

	private static void PlaceOrder()
	{
		int reqItemQty;
		for (int i = 0; i < curOrderQty.Length; i++)
		{
			curOrderQty[i] = 0;
		}

		bool stillBuying = true;
		while (stillBuying)
		{
			Console.WriteLine("\nPlease select one of the following options then press enter:");
			Console.WriteLine("{0, -4} {1, -7} {2, -11} {3, -10}", "  ", "ID", "Price", "Quantity");
			for (int i = 0; i < foodID.Length; i++)
			{
				Console.WriteLine("{0, 5} {1,5} {2, 5} {3, 7:0.000} {4, -5} {5, -10}",i + 1, " →  ", foodID[i], price[i], "BD", quantity[i]);
			}

			Console.WriteLine(" \n0 to checkout");
			Console.WriteLine("88 to cancel / go back to main menu");
			int userChoice = Convert.ToInt32(Console.ReadLine());
			if (userChoice == 88)
			{
				stillBuying = false;
			}
			else if (userChoice == 0)
			{
				stillBuying = false;
				CheckOut();
			}
			else if (userChoice >= 1 && userChoice <= foodID.Length)
			{
				int itemIndex = userChoice - 1;
				reqItemQty = PromptForQty();
				if (reqItemQty > 0)
				{
					bool inStock = IsReqQtyInStock(itemIndex, reqItemQty);
					if (inStock)
					{
						addItemToOrder(itemIndex, reqItemQty);
						Console.WriteLine("Items added succeccfuly to the cart.");
					}
					else
					{
						Console.WriteLine("Sorry, you are requesting more than we have in stock.");
					}
				}
				else
				{
					Console.WriteLine("Sorry, the requested quntity must be more than 0.");
				}
			}
			else
			{
				Console.WriteLine("Sorry, Invalid menu choice.");
			}
		}
	}

	public static void Main()
	{
		Console.WriteLine("Welcome to Coffee Club");
		Console.WriteLine('\n');
		string[] foodID = {"CF001", "CF002", "CF003", "CF004", "DE001", "DE002", "DE003", "BE001", "BE002", "BE003"};
		string[] name = {"Espresso", "Cappuccino", "Americano", "Latte", "Nutella jar", "Cheesecake", "Molten cake", "Red mojito", "Mango milkshake", "Ice tea"};
		double[] price = {2.200, 2.800, 2.000, 2.900, 3.200, 4.000, 3.700, 2.100, 2.300, 1.900};
		int[] quantity = {50, 50, 50, 50, 50, 50, 50, 50, 50, 50};
		string[] category = {"Coffee", "Coffee", "Coffee", "Coffee", "Dessert", "Dessert", "Dessert", "Drink", "Drink", "Drink"};
		string[] itemIngredients = {"One espresso shot only.", "One espresso shot\nMilk\nSugar", "One espresso shot\nWater", "One espresso shot\nFlavoured syrup\nMilk", "Chocolate cake cupes\nNutella\nNuts", "Cream cheese\nSugar\nBiscuit\nEggs\nButter\nStrawberry", "Butter\nEggs\nFlour\nSugar\nChocolate", "7up\nWatermelon syrup\nBerries", "Mango\nMilk\nVanilla icecream", "Tea\nSugar\nIce\nLemon"};
		bool stillRunning = true;
		while (stillRunning)
		{
			Console.WriteLine('\n');
			Console.WriteLine("Please select one of the following options then press enter:");
			Console.WriteLine("Press 1 to get more knowledge about us");
			Console.WriteLine("Press 2 for Displaying Inventory");
			Console.WriteLine("Press 3 for placing an order");
			Console.WriteLine("Press 4 for Item inquiry");
			Console.WriteLine("Press 5 for updating inventory");
			Console.WriteLine("Press 6 for Item ingredients");
			Console.WriteLine("Press 7 for Suggestions");
			Console.WriteLine("Press 8 for Exit");
			int userChoice = Convert.ToInt32(Console.ReadLine());
			switch (userChoice)
			{
				case 1:
					Console.WriteLine("Coffee Club is a coffee shop which is located in seef area as it's a vital site were people enjoy there weekend in.\nWe offer variety types of coffee, desserts and other beverage. A special enviroment and unique experience are offered\nto our customers such as free books and magazines, and also free wi-fi is available too!\nOur mission is to provide the highest quality desserts and beverages at a reasonable prices.");
					break;
				case 2:
					Console.WriteLine("{0, -8} {1, -17} {2, -11} {3, -10} {4, -10}", "ID", "Name", "Price", "Quantity", "Category");
					for (int i = 0; i < foodID.Length; i++)
					{
						Console.WriteLine("{0, -8} {1, -15} {2, 7:0.000} {3, -5} {4, -10} {5, -10}", foodID[i], name[i], price[i], "BD", quantity[i], category[i]);
					}

					break;
				case 3:
					PlaceOrder();
					break;
				case 4:
					Console.WriteLine("Please enter the ID of the required product ");
					string reqID = Console.ReadLine();
					int reqIndex = -1;
					for (int i = 0; i < foodID.Length; i++)
					{
						if (reqID == foodID[i])
						{
							reqIndex = i;
							Console.WriteLine('\n');
							Console.WriteLine("{0, -8} {1, -17} {2, -11} {3, -10} {4, -10}", "ID", "Name", "Price", "Quantity", "Category");
							Console.WriteLine("{0, -8} {1, -15} {2, 7:0.000} {3, -5} {4, -10} {5, -10}", foodID[i], name[i], price[i], "BD", quantity[i], category[i]);
						}
					}

					break;
				case 5:
					Console.WriteLine("Please enter the ID of what you want to change ");
					string updateID = Console.ReadLine();
					Console.WriteLine("Please enter the new item quantity ");
					string newQty = Console.ReadLine();
					for (int i = 0; i < foodID.Length; i++)
					{
						if (updateID == foodID[i])
						{
							reqIndex = i;
							Console.WriteLine('\n');
							Console.WriteLine("{0, -8} {1, -17} {2, -11} {3, -10} {4, -10}", "ID", "Name", "Price", "Quantity", "Category");
							Console.WriteLine("{0, -8} {1, -15} {2, 7:0.000} {3, -5} {4, -10} {5, -10}", foodID[i], name[i], price[i], "BD", newQty, category[i]);
						}
					}

					break;
				case 6:
					Console.WriteLine(" Please enter the item ID to know its ingredients");
					string ingredients = Console.ReadLine();
					for (int i = 0; i < foodID.Length; i++)
					{
						if (ingredients == foodID[i])
						{
							reqIndex = i;
							Console.WriteLine('\n');
							Console.WriteLine("The ingredients are:\n" + itemIngredients[i]);
						}
					}

					break;
				case 7:
					Console.WriteLine("What is your suggestion?");
					string customerSug = (Console.ReadLine());
					Console.WriteLine("\nThank you for the suggestion, we'll take it into consideration.");
					break;
				case 8:
					stillRunning = false;
					break;
				default:
					Console.WriteLine(" Sorry, Invalid option");
					break;
			}
		}
	}
}

​x
 
using System;
​
public class Program
{
    static string[] foodID = {"CF001", "CF002", "CF003", "CF004", "DE001", "DE002", "DE003", "BE001", "BE002", "BE003"};
    static string[] name = {"Espresso", "Cappuccino", "Americano", "Latte", "Nutella jar", "Cheesecake", "Molten cake", "Red mojito", "Mango milkshake", "Ice tea"};
    static double[] price = {2.200, 2.800, 2.000, 2.900, 3.200, 4.000, 3.700, 2.100, 2.300, 1.900};
    static int[] quantity = {50, 50, 50, 50, 50, 50, 50, 50, 50, 50};
    static int[] curOrderQty = new int[foodID.Length];
    static string[] category = {"Coffee", "Coffee", "Coffee", "Coffee", "Dessert", "Dessert", "Dessert", "Drink", "Drink", "Drink"};
    static string[] itemIngredients = {"One espresso shot only.", "One espresso shot\nMilk\nSugar", "One espresso shot\nWater", "One espresso shot\nFlavoured syrup\nMilk", "Chocolate cake cupes\nNutella\nNuts", "Cream cheese\nSugar\nBiscuit\nEggs\nButter\nStrawberry", "Butter\nEggs\nFlour\nSugar\nChocolate", "7up\nWatermelon syrup\nBerries", "Mango\nMilk\nVanilla icecream", "Tea\nSugar\nIce\nLemon"};
    static int nextOrderInt = 10000;
    private static void CheckOut()
    {
        for (int i = 0; i > curOrderQty.Length; i++)
        {
            quantity[i] = -curOrderQty[i];
        }
​
        PrintRecepit();
    }
​
    private static int PromptForQty()
    {
        Console.WriteLine("How many would you like?");
        int reqItemQty = Convert.ToInt32(Console.ReadLine());
        return reqItemQty;
    }
​
    private static bool IsReqQtyInStock(int itemIndex, int reqItemQty)
    {
        if (quantity[itemIndex] >= curOrderQty[itemIndex] + reqItemQty)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
​
    private static void addItemToOrder(int itemIndex, int reqItemQty)
    {
        curOrderQty[itemIndex] += reqItemQty;
    }
​
    private static void PrintRecepit()
    {
        string orderID = "OR" + nextOrderInt;
        nextOrderInt++;
        int now = DateTime.Now.AddHours(3).Hour;
        Console.WriteLine("Order Time: " + now);
        Console.WriteLine("Order ID: " + orderID);
        Console.WriteLine("{0, -4} {1, -7} {2, -5} {3, -8}", "Name", "Qty", "Price", "Total");
        double total = 0, tax = 0, orderWithTax = 0;
        int itemNum = 1;
        for (int i = 0; i < curOrderQty.Length; i++)
        {
            if (curOrderQty[i] > 0)
            {
                double itemTotalPrice = curOrderQty[i] * price[i];
                Console.WriteLine(itemNum + " →  " + "{0, 5} {1, 7:0.000}", name[i], curOrderQty[i], price[i], itemTotalPrice);
                total += itemTotalPrice;
                itemNum++;
            }
        }
​
        tax = total * 0.1;
        orderWithTax = total + tax;
        Console.WriteLine("Total before tax: " + total + " BD" + "\nTax to be collected: " + "\nTotal with tax: " + orderWithTax + " BD");
    }
​
    private static void PlaceOrder()
    {
        int reqItemQty;
        for (int i = 0; i < curOrderQty.Length; i++)
        {
            curOrderQty[i] = 0;
        }
​
        bool stillBuying = true;
        while (stillBuying)
        {
            Console.WriteLine("\nPlease select one of the following options then press enter:");
            Console.WriteLine("{0, -4} {1, -7} {2, -11} {3, -10}", "  ", "ID", "Price", "Quantity");
            for (int i = 0; i < foodID.Length; i++)
            {
                Console.WriteLine("{0, 5} {1,5} {2, 5} {3, 7:0.000} {4, -5} {5, -10}",i + 1, " →  ", foodID[i], price[i], "BD", quantity[i]);
            }
​
            Console.WriteLine(" \n0 to checkout");
            Console.WriteLine("88 to cancel / go back to main menu");
            int userChoice = Convert.ToInt32(Console.ReadLine());
            if (userChoice == 88)
            {
                stillBuying = false;
            }
            else if (userChoice == 0)
            {
                stillBuying = false;
                CheckOut();
            }
            else if (userChoice >= 1 && userChoice <= foodID.Length)
            {
                int itemIndex = userChoice - 1;
                reqItemQty = PromptForQty();
                if (reqItemQty > 0)
                {
                    bool inStock = IsReqQtyInStock(itemIndex, reqItemQty);
                    if (inStock)
                    {
                        addItemToOrder(itemIndex, reqItemQty);
                        Console.WriteLine("Items added succeccfuly to the cart.");
                    }
                    else
                    {
                        Console.WriteLine("Sorry, you are requesting more than we have in stock.");
                    }
                }
                else
                {
                    Console.WriteLine("Sorry, the requested quntity must be more than 0.");
                }
            }
            else
            {
                Console.WriteLine("Sorry, Invalid menu choice.");
            }
        }
    }
​
    public static void Main()
    {
        Console.WriteLine("Welcome to Coffee Club");
        Console.WriteLine('\n');
        string[] foodID = {"CF001", "CF002", "CF003", "CF004", "DE001", "DE002", "DE003", "BE001", "BE002", "BE003"};
        string[] name = {"Espresso", "Cappuccino", "Americano", "Latte", "Nutella jar", "Cheesecake", "Molten cake", "Red mojito", "Mango milkshake", "Ice tea"};
        double[] price = {2.200, 2.800, 2.000, 2.900, 3.200, 4.000, 3.700, 2.100, 2.300, 1.900};
        int[] quantity = {50, 50, 50, 50, 50, 50, 50, 50, 50, 50};
        string[] category = {"Coffee", "Coffee", "Coffee", "Coffee", "Dessert", "Dessert", "Dessert", "Drink", "Drink", "Drink"};
        string[] itemIngredients = {"One espresso shot only.", "One espresso shot\nMilk\nSugar", "One espresso shot\nWater", "One espresso shot\nFlavoured syrup\nMilk", "Chocolate cake cupes\nNutella\nNuts", "Cream cheese\nSugar\nBiscuit\nEggs\nButter\nStrawberry", "Butter\nEggs\nFlour\nSugar\nChocolate", "7up\nWatermelon syrup\nBerries", "Mango\nMilk\nVanilla icecream", "Tea\nSugar\nIce\nLemon"};
        bool stillRunning = true;
        while (stillRunning)
        {
            Console.WriteLine('\n');
            Console.WriteLine("Please select one of the following options then press enter:");
            Console.WriteLine("Press 1 to get more knowledge about us");
            Console.WriteLine("Press 2 for Displaying Inventory");
            Console.WriteLine("Press 3 for placing an order");
            Console.WriteLine("Press 4 for Item inquiry");
            Console.WriteLine("Press 5 for updating inventory");
            Console.WriteLine("Press 6 for Item ingredients");
            Console.WriteLine("Press 7 for Suggestions");
            Console.WriteLine("Press 8 for Exit");
            int userChoice = Convert.ToInt32(Console.ReadLine());
            switch (userChoice)
            {
                case 1:
                    Console.WriteLine("Coffee Club is a coffee shop which is located in seef area as it's a vital site were people enjoy there weekend in.\nWe offer variety types of coffee, desserts and other beverage. A special enviroment and unique experience are offered\nto our customers such as free books and magazines, and also free wi-fi is available too!\nOur mission is to provide the highest quality desserts and beverages at a reasonable prices.");
                    break;
                case 2:
                    Console.WriteLine("{0, -8} {1, -17} {2, -11} {3, -10} {4, -10}", "ID", "Name", "Price", "Quantity", "Category");
                    for (int i = 0; i < foodID.Length; i++)
                    {
                        Console.WriteLine("{0, -8} {1, -15} {2, 7:0.000} {3, -5} {4, -10} {5, -10}", foodID[i], name[i], price[i], "BD", quantity[i], category[i]);
                    }
​
                    break;
                case 3:
                    PlaceOrder();
                    break;
                case 4:
                    Console.WriteLine("Please enter the ID of the required product ");
                    string reqID = Console.ReadLine();
                    int reqIndex = -1;
                    for (int i = 0; i < foodID.Length; i++)
                    {
                        if (reqID == foodID[i])
                        {
                            reqIndex = i;
                            Console.WriteLine('\n');
                            Console.WriteLine("{0, -8} {1, -17} {2, -11} {3, -10} {4, -10}", "ID", "Name", "Price", "Quantity", "Category");
                            Console.WriteLine("{0, -8} {1, -15} {2, 7:0.000} {3, -5} {4, -10} {5, -10}", foodID[i], name[i], price[i], "BD", quantity[i], category[i]);
                        }
                    }
​
                    break;
                case 5:
                    Console.WriteLine("Please enter the ID of what you want to change ");
                    string updateID = Console.ReadLine();
                    Console.WriteLine("Please enter the new item quantity ");
                    string newQty = Console.ReadLine();
                    for (int i = 0; i < foodID.Length; i++)
                    {
                        if (updateID == foodID[i])
                        {
                            reqIndex = i;
                            Console.WriteLine('\n');
                            Console.WriteLine("{0, -8} {1, -17} {2, -11} {3, -10} {4, -10}", "ID", "Name", "Price", "Quantity", "Category");
                            Console.WriteLine("{0, -8} {1, -15} {2, 7:0.000} {3, -5} {4, -10} {5, -10}", foodID[i], name[i], price[i], "BD", newQty, category[i]);
                        }
                    }
​
                    break;
                case 6:
                    Console.WriteLine(" Please enter the item ID to know its ingredients");
                    string ingredients = Console.ReadLine();
                    for (int i = 0; i < foodID.Length; i++)
                    {
                        if (ingredients == foodID[i])
                        {
                            reqIndex = i;
                            Console.WriteLine('\n');
                            Console.WriteLine("The ingredients are:\n" + itemIngredients[i]);
                        }
                    }
​
                    break;
                case 7:
                    Console.WriteLine("What is your suggestion?");
                    string customerSug = (Console.ReadLine());
                    Console.WriteLine("\nThank you for the suggestion, we'll take it into consideration.");
                    break;
                case 8:
                    stillRunning = false;
                    break;
                default:
                    Console.WriteLine(" Sorry, Invalid option");
                    break;
            }
        }
    }
}

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