object MiniScalaApp {
  def main(args: Array[String]) = {
    println(s"Scala Version: ${scala.util.Properties.scalaPropOrElse("version.number", "unknown")}")
    println(new Dinosaur("Tyrannotitan", 4900))
    println(new Dinosaur("Animantarx ", 300))
  }

  class Dinosaur (name:String, weightKG: Int) {
    override def toString = f"$name, Weight: $weightKG kg"
  }
}

$ scala /myProject/src/main/scala/MiniScalaApp.scala

object MiniScalaApp {
  def main(args: Array[String]) = {
    println(s"Scala Version: ${scala.util.Properties.scalaPropOrElse("version.number", "unknown")}")
    println(new Dinosaur("Tyrannotitan", 4900))
    println(new Dinosaur("Animantarx ", 300))
  }
}

class Dinosaur (name:String, weightKG: Int) {
  override def toString = f"$name, Weight: $weightKG kg"
}

$ scalac /myProject/src/main/scala/MiniScalaApp.scala
$ scala MiniScalaApp