public static void Main()
Book[] book = new Book[3];
Console.WriteLine("-------------------------------------------");
Console.WriteLine(" INPUT BOOKS INFORMATION ");
Console.WriteLine("-------------------------------------------");
for (int i = 0;i <book.Length;i++)
Console.WriteLine("Information of book # {0}",i+1);
Console.Write("Input Titel : ");
book[i].title = Console.ReadLine();
Console.Write("Input Price : ");
book[i].Price = double.Parse(Console.ReadLine());
while (book[i].Price <= 0)
Console.Write("Input Price, again : ");
book[i].Price = double.Parse(Console.ReadLine());
Console.WriteLine("--------------------------------------------------------------");
Console.WriteLine(" DISPLAL BOOKS INFORMATION ");
Console.WriteLine("--------------------------------------------------------------");
foreach (Book _book in book)
Console.WriteLine("Book named \"{0}\" costs {1:n} baht.",_book.title,_book.Price);
totalprice += _book.Price;
Console.WriteLine("Total price of {0} books is {1:n2} baht.",book.Length,totalprice);