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Protocols are analogous to Java Interfaces
Classes can inherit from one parent, implement multiple protocols
Classes and
Protocols
protocol Exercising {
var heartRateIncrement : Int { get set }
func describe() -> String
}
class Walk : Exercising {
var heartRateIncrement : Int = 10
func describe() -> String { return "walking" }
}
class Jog : Exercising {
var heartRateIncrement : Int = 20
func describe() -> String { return "jogging at a moderate pace" }
}
class Person {
var heartRateResting : Int = 70
var heartRateTarget : Int = 140
var heartRate : Int = 70
}
https://gist.github.com/mthouser/4f8721f5fb89f5abb28f
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