super.init(physics: physics)
}
}
let sa = [
Chemistry(physics: "solid physics", equations: "Hertz"),
Maths(physics: "Fluid Dynamics", formulae: "Giga Hertz"),
Chemistry(physics: "Thermo physics", equations: "Decibels"),
Maths(physics: "Astro Physics", formulae: "MegaHertz"),
Maths(physics: "Differential Equations", formulae: "Cosine Series")]
let samplechem = Chemistry(physics: "solid physics", equations: "Hertz")
println("Instance physics is: (samplechem.physics)")
println("Instance equation is: (samplechem.equations)")
let samplemaths = Maths(physics: "Fluid Dynamics", formulae: "Giga Hertz")
println("Instance physics is: (samplemaths.physics)")
println("Instance formulae is: (samplemaths.formulae)")
var chemCount = 0
var mathsCount = 0
for item in sa {
if let print = item as? Chemistry {
println("Chemistry topics are: '(print.physics)', (print.equations)")
} else if let example = item as? Maths {
println("Maths topics are: '(example.physics)', (example.formulae)")
}
}
var exampleany = [Any]()
exampleany.append(12)