public static void DisplayMenu(CardCatalog cc)
{
bool displayMenu = true;
while (displayMenu)
{
displayMenu = MainMenu(cc);
Console.WriteLine();
}
}
public static bool MainMenu(CardCatalog cc)
{
Console.WriteLine("1) Add a book.");
Console.WriteLine("2) Get book information by all ISBN.");
Console.WriteLine("3) Search book by any keywords.");
Console.WriteLine("4) List all books.");
Console.WriteLine("5) Exit.");
Console.Write("> ");
string result = Console.ReadLine();
if (result == "1")
{
cc.AddABook();
return(true);
}
else if (result == "2")
{
cc.search_by_ISBN();
return(true);
}
else if (result == "3")
{
cc.search_by_keywords();
return(true);
}
else if (result == "4")
{
cc.ListAllBooks();
return(true);
}
else if (result == "5")
{
return(false);
}
else
{
return(true);
}
}
public static void Main(string[] args)
{
CardCatalog cc = new CardCatalog();
DisplayMenu(cc);
}