takaheraw

struct Donor {
    let title: String
    let firstName: String
    let familyName: String
    let lastDonation: Float
    
    init(_ title:String, _ first:String, _ family:String, _ last:Float) {
        self.title = title
        self.firstName = first
        self.familyName = family

takaheraw

class Sequence {
    private var numbers: [Int]
    
    init(_ numbers: Int...) {
        self.numbers = numbers
    }
    
    func addNumber(value: Int) {
        self.numbers.append(value)
    }

takaheraw

class ActivityLog {
    func logActivity(activity: String) {
        print("Log: \(activity)")
    }
}

class FileCache {
    func loadFiles(user: String) {
        print("Load files for \(user)")
    }

takaheraw

class Calculator {
    private (set) var total = 0
    
    func add(amount: Int) {
        total += amount
    }
    
    func subtract(amount: Int) {
        total -= amount
    }

takaheraw

struct Message {
    let from: String
    let to: String
    let subject: String
}

class LocalTransmitter {
    func sendMessage(message: Message) {
        print("Message to \(message.to) sent locally")
    }

takaheraw

func getHeader(header:String) {
    let url = NSURL(string: "http://www.apress.com")
    let request = NSURLRequest(URL: url!)
    NSURLSession.sharedSession().dataTaskWithRequest(request, completionHandler: { data, response, error in
        if let httpResponse = response as? NSHTTPURLResponse {
            if let headerValue = httpResponse.allHeaderFields[header] as? NSString {
                print("\(header): \(headerValue)")
            }
        }
    }).resume()

takaheraw

class TreasureMap {
    
    enum Treasures {
        case GALLEON
        case BURIED_GOLD
        case SUNKEN_JEWELS
    }
    
    struct MapLocation {
        let gridLetter: Character

takaheraw

class Purchase : CustomStringConvertible {
    private let product:String
    private let price:Float
    
    init(product:String, price:Float) {
        self.product = product
        self.price = price
    }
    
    var description:String {

takaheraw

protocol ClearMessageChannel {
    func send(message:String)
}

protocol SecureMessageChannel {
    func sendEncryptedMessage(encryptedText:String)
}

class Communicator {
    private let clearChannel:ClearMessageChannel

takaheraw

struct Employee {
    var name:String
    var title:String
}

protocol EmployeeDataSource {
    var employees:[Employee] { get }
    func searchByName(name:String) -> [Employee]
    func searchByTitle(title:String) -> [Employee]
}