static void Main(string[] args)
{
ManageBook Man = new ManageBook();
string ID;
int input = 0;
do
{
Clear();
WriteLine("***Welcome to Book Library System***");
WriteLine("1.Add new book");
WriteLine("2.Update book");
WriteLine("3.Delete Book");
WriteLine("4.Show all Book");
WriteLine("5.Quit");
Write("Choose: ");
input = Validation.CheckInput();
switch (input)
{
//Add New book
case 1:
WriteLine("***Add new book***");
Man.AddNewBook();
ReadLine();
break;
//Update Book
case 2:
WriteLine("***Update book by ID***");
Write("Enter ID: ");
ID = Console.ReadLine();
Man.UpdateBook(ID);
ReadLine();
break;
//Delete Book
case 3:
WriteLine("***Delete Book by ID***");
Write("Enter ID: ");
ID = Console.ReadLine();
Man.DeleteBook(ID);
ReadLine();
break;
//Show all Book
case 4:
WriteLine("***Show all Book***");
Man.ShowAll();
ReadLine();
break;
case 5:
WriteLine("Goodbye");
ReadLine();
break;
default:
WriteLine("Invalid Choice!");
ReadLine();
break;
}
} while (input != 5);
}