I've been using Scala for years and I have no idea how inheritance works. http://docs.scala-lang.org/tutorials/FAQ/initialization-order.html

¯|_(ツ)_|¯.scala

class C {
  val a: Int = 1
  val b: Int = a + 10
}

class B extends C {
  override val a: Int = 100
}

println(s"a = ${new B().a}")
println(s"b = ${new B().b}")

// a = 100
// b = 10
// ¯\_(ツ)_/¯