static void Main(string[] args) { Library library = new Library("Victorian State Library"); Book darkAlliance = new Book("Dark Alliance", "Gary Webb", "12345"); Book marketsSolved = new Book("The Man Who Solved the Markets", "Jim Simons", "98765"); darkAlliance.OnLoan = true; Game fable = new Game("Fable", "Lionhead Studios", "M"); Game grandTheftAuto = new Game("Grand Theft Auto 4", "Rockstar Games", "R"); grandTheftAuto.OnLoan = true; library.AddResource(darkAlliance); library.AddResource(marketsSolved); library.AddResource(fable); library.AddResource(grandTheftAuto); Console.WriteLine("Is Dark Alliance Available for Loan? " + library.HasResource("Dark Alliance")); Console.WriteLine("Is Fable Available for Loan? " + library.HasResource("Fable")); }