## Nested Types ~~~ struct BlackjackCard { // nested Suit enumeration enum Suit: Character { case Spades = "?", Hearts = "?", Diamonds = "?", Clubs = "?" } // nested Rank enumeration enum Rank: Int { case Two = 2, Three, Four, Five, Six, Seven, Eight, Nine, Ten case Jack, Queen, King, Ace struct Values { let first: Int, second: Int? } var values: Values { switch self { case .Ace: return Values(first: 1, second: 11) case .Jack, .Queen, .King: return Values(first: 10, second: nil) default: return Values(first: self.toRaw(), second: nil) } } } // BlackjackCard properties and methods let rank: Rank, suit: Suit var description: String { var output = "suit is \(suit.toRaw())," output += " value is \(rank.values.first)" if let second = rank.values.second { output += " or \(second)" } return output } } let theAceOfSpades = BlackjackCard(rank: .Ace, suit: .Spades) println("theAceOfSpades: \(theAceOfSpades.description)") // prints "theAceOfSpades: suit is ?, value is 1 or 11” let heartsSymbol = BlackjackCard.Suit.Hearts.toRaw() // heartsSymbol is "?" ~~~