Swift Tutorial - Tutorialspoint
otherwise it will return some user defined print message by checking the statement 'if circname.print?.circleprint() != nil'. Ac ...
init(radiusname: String) { self.radiusname = radiusname } } class circumference { var circumName: String? var circumNumber: Stri ...
} class circle { var area = [radius]() var cprint: Int { return area.count } subscript(i: Int) - > radius { get { return area ...
} else if circumNumber != nil { return circumNumber } else { return nil } } } let circname = rectangle() circname.print?[ 0 ] = ...
return area.count } subscript(i: Int) - > radius { get { return area[i] } set { area[i] = newValue } } func circleprint() { p ...
return nil } } } let circname = rectangle() circname.print?[ 0 ] = radius(radiusname: "Diameter") let printing = circle() printi ...
The optional values for subscripts can be accessed by referring their subscript values. It can be accessed as subscript[0], subs ...
} class circumference { var circumName: String? var circumNumber: String? var circumarea: String? func buildingIdentifier() - &g ...
} class circle { var area = [radius]() var cprint: Int { return area.count } subscript(i: Int) - > radius { get { return area ...
} else if circumNumber != nil { return circumNumber } else { return nil } } } let circname = rectangle() circname.print?[ 0 ] = ...
var cprint: Int { return area.count } subscript(i: Int) -> radius { get { return area[i] } set { area[i] = newValue } } func ...
} } } let circname = rectangle() if circname.print?.circleprint() != nil { println("Area of circle is specified)") } else { prin ...
To validate the type of an instance 'Type Casting' comes into play in Swift language. It is used to check whether the instance t ...
let sa = [ Chemistry(physics: "solid physics", equations: "Hertz"), Maths(physics: "Fluid Dynamics", formulae: "Giga Hertz")] le ...
self.equations = equations super.init(physics: physics) } } class Maths: Subjects { var formulae: String init(physics: String, f ...
} else if item is Maths { ++mathsCount } } println("Subjects in chemistry contains \(chemCount) topics and maths contains \(math ...
class Maths: Subjects { var formulae: String init(physics: String, formulae: String) { self.formulae = formulae super.init(physi ...
When we run the above program using playground, we get the following result: Instance physics is: solid physics Instance equatio ...
super.init(physics: physics) } } let sa = [ Chemistry(physics: "solid physics", equations: "Hertz"), Maths(physics: "Fluid Dynam ...
exampleany.append(3.14159) exampleany.append("Example for Any") exampleany.append(Chemistry(physics: "solid physics", equations: ...
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