constructors in scala (primary/auxiliary/default primary)

Question

A quite simple exercise from Cay Horstmann\'s book « Scala for the impatient » keeps puzzling me. It\'s about primary,auxiliary and <

Answer 1

Actually, what I had in mind is a version with a no-argument primary constructor, like this:

class Employee {
  private var _name = "John Q. Public"
  var salary = 0.0
  def this(n: String, s: Double) { this(); _name = n; salary = s; }
  def name = _name      
}

Clearly, this is inferior to defining the fields in the primary constructor, which is the point that I wanted to make.