Constructors in Scala

class R(n: Int, d: Int) {
  val (x, y) = {
    val g = myfunc
    (n/g, d/g)
  }
}

class R private (val x: Int, val y: Int);

object R {
  def apply(n: Int, d: Int): R = {
    val g = myfunc;
    new R(n / g, d / g);
  }
}