traits

Interface like traits are fields and behaviors that you add to classes

Better than Java interfaces b/c offers value parameters and methods

trait Car {
  def two: Int = 1 * 2 
  val brand: String 
}

trait Shiny {
  val shineRefraction: Int
}

Extending Traits

class BMW extends Car {
  val brand = "BMW"
}

One class can extend several traits using the with keyword:

class BMW extends Car with Shiny {
  val brand = "BMW"
  val shineRefraction = 12
}

-better than abstract classes cuz can extend multiple traits

• can't have abstract class constructors, or import in Java as easily