public static void Main()
Console.WriteLine("= = = = = = = = = = = = = = = = = = = = = = = =");
Console.WriteLine("\t\t\t+++ KD & MJ Shop +++");
Console.WriteLine("= = = = = = = = = = = = = = = = = = = = = = = =");
Console.WriteLine("= = = = = = = = = = = = = = = = = = = = = = = =");
Console.WriteLine("\t\t\t1. Add a Product");
Console.WriteLine("\t\t\t2. View Product List");
Console.WriteLine("\t\t\t3. Delete a Product");
Console.WriteLine("\t\t\t4. Transact Sales");
Console.WriteLine("\t\t\t5. Exit Program");
Console.WriteLine("= = = = = = = = = = = = = = = = = = = = = = = =");
Console.WriteLine("Make your choice: type 1, 2, ... or 5 for exit");
Console.WriteLine("= = = = = = = = = = = = = = = = = = = = = = = =");
choice = int.Parse(Console.ReadLine());
static void deleteproduct()
Console.WriteLine("= = = = = < delete product > = = = = =");
Console.Write("Product Name: ");
Console.Write("Product Price: ");
PP=Double.Parse(Console.ReadLine());
Console.WriteLine("! Product was successfully deleted.");
Console.WriteLine("Press any key to continue, [x] to stop");
Press = Console.ReadLine();