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let name = "world"

if name == "world" {
    print("hello, world")
} else {
    print("I'm sorry \(name), dont know you")
}

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let name = "world"

(name == "world") ? print("hello, world") : print("I'm sorry \(name), dont know you")

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 protocol FullNameable {
  var fullName: String { get }
}

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//First Implementation 
struct Lecturer: FullNameable {
  var fullName: String
}

let lecturer = Lecturer(fullName: "Gift")

//Second Implementation
struct Student: FullNameable {
  let firstName: String

agoiabel

//First Implementation 
struct Lecturer: FullNameable {
  var fullName: String
}

let lecturer = Lecturer(fullName: "Gift")

lecturer.fullName //will return Gift

lecturer.fullName = "Abel" //This will fail

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protocol Blendable {
  func blend() -> ()
}

class Fruit: Blendable {
  var name: String
  
  init(name: String) {
    self.name = name
  }

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func makeSmoothie(with ingredients: [Blendable]) {
    for ingredient in ingredients {
        ingredient.blend()
    }
}

let orange = Fruit(name: "Orange")
let strawberry = Fruit(name: "Strawberry")
let chocolateMilk = Milk(name: "Chocolote")

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class Airplane {
  let landingGear: String
  
  func fly() {
     print("I can fly")
  }
}

class JetPlane: Airplane {
  let jetEngine: String

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protocol Flyable {
  func fly() -> String
}

class Airplane: Flyable {
  
  func fly() -> String {
    return ("Airplane can fly")
  }
  

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protocol Animal {
  var noOfLegs: Int
}

protocol Pet: Animal {
  var name: String
}

class Dog: Pet {
  //we must have the var name & noOfLegs in the Dog class