// exsw3a.swift  declare  dictionary, class

#if os(OSX) || os(iOS) // for libraries, portable for OSX and Linux
import Foundation
#elseif os(Linux)
import Glibc
#endif// 

print("exsw3a.swift running")

// define a dictionary and use some operations

let interestingNumbers = [
   "Prime": [2, 3, 5, 7, 11, 13, 17],
   "Fibonacci": [1, 1, 2, 3, 5, 8, 13, 21],
   "Square": [1, 4, 9, 16, 25],
   "Cube":[1, 8, 27, 64]
]

var largest = 0
var mykind = " "
for (kind, numbers) in interestingNumbers {
  for number in numbers {
     if number > largest {
       largest = number
       mykind = kind
     }
  }
}
print("kind=\(mykind) large=\(largest)")

var mynumber = 9
for (kind, numbers) in interestingNumbers {
  for number in numbers {
    if number == mynumber {
      mykind = kind
    }
  }
}
print("kind=\(mykind) has \(mynumber)")



// define a class and use some operations
class NamedShape {
  var numberOfSides: Int = 0
  var name: String
  init(name: String) {
    self.name = name
  }

  func simpleDescription() -> String {
    return "A shape with \(numberOfSides) sides."
  }
} // end class NamedShape

class Square: NamedShape {
  var sideLength: Double

  init(sideLength: Double, name: String) {
    self.sideLength = sideLength
    super.init(name: name)
    numberOfSides = 4
  }

  func area() -> Double {
    return sideLength * sideLength
  }

  override func simpleDescription() -> String {
    return "A square with sides of length \(sideLength)."
  }
}

let test = Square(sideLength: 5.2, name: "my test square")
let aans = test.area()
print(aans)
let dans = test.simpleDescription()
print(dans)

print("exsw3a.swift finished")