Methods/Orders

using System;
using System.Linq;

namespace Methods
{
    public class Methods
    {
        public static void Main()
        {

            string products = Console.ReadLine();

            int quantity = int.Parse(Console.ReadLine());

            TotalPrice(products, quantity);

        }

        public static void TotalPrice(string products, int quantity)
        {
            double price = 0;

            switch (products)
            {
                case "coffee":
                    price = 1.50 * quantity;
                    Console.WriteLine($"{price:f2}");
                    break;
                case "water":
                    price = 1.00 * quantity;
                    Console.WriteLine($"{price:f2}");
                    break;
                case "coke":
                    price = 1.40 * quantity;
                    Console.WriteLine($"{price:f2}");
                    break;
                case "snacks":
                    price = 2.00 * quantity;
                    Console.WriteLine($"{price:f2}");
                    break;
            }
        }
    }
}