Understanding Case class and Traits in Scala

Question

I have a simple trait as defined below:

trait MyTrait {

  def myStringVal: String

}

My case class which implements this trait is as below:

Answer 1

Case classes are different -- some default methods are generated for them. This includes val getters for the parameters. Think of case classes as POJOs -- this is a useful bit of syntactic sugar, since they don't need private members.

Some other useful methods are generated too, for example copy, toString, apply and unapply.