Medium_Protocols_5.swift

class Diver: Swimmable {
    func swim() {
        print("Diver is swiming")
    }
}

class Whale: Swimmable {
    func swim() {
        print("Whale is Swiming")
    }
}

let expertDiver = Diver()
expertDiver.swim()

let blueWhale = Whale()
blueWhale.swim()