Initialization for Groovy dudes.

Persons.scala

// Scala Person case class
case class Person(first: String = "", last: String = "", age: Int = 0)

val p = Person(first = "John", last = "McPeek", age = 19)
val p1 = Person(first = "John")

// Scala PersonTrait
trait PersonTrait { 
  def first: String
  def last: String
  def age: Int
}

val pt = new PersonTrait { val first = "John"; val last = "McPeek"; val age = 19 }