14032019_7

import Foundation

class Ruler{

    var inche:Double{
        get{
            return cm*2.54
        }
        set{
            cm = newValue / 2.54
        }
    }
    var cm:Double = 0.0

    init(cm:Double) {
        self.cm = cm
    }

    init(inche:Double) {
     self.inche = inche
    }

}

let  num = Ruler(cm : 10)
print (num.cm)
print (num.inche)

print()

let num1 = Ruler(inche : 25.4)
print (num1.cm)
print (num1.inche)