214957

1. read up on regex parsing and come up with 3 esamples
2. read chapter 15 in Learning Processing book (google drive)
3. do scala snippets sent in e-mail

The goal here is to remember how we can have a list of different objects that do the same thing in different ways.

package abstractions

object Main extends App {
  def makeSound(animal:List[String])
  def animals = List(new Dog(), new Cat())
  for(each <- animals) {
    each.makeSound()
  }
}

Please implement:

def factorial(n : Int) : Int without any loops.

not req:
http://arxiv.org/pdf/1312.5602v1.pdf
https://www.youtube.com/watch?v=hMxGhHNOkCU