Fibonacci

object Fibonacci {
  def main(args: Array[String]): Unit = {
    fibonacci
  }

  var x=0
  var y=1

  def fibonacci= {
    var i = 0
    while(i < 15) {
      println(i + ":" + x)
      x=x+y
      y=x-y
      i += 1
    }
  }

}