Scala example source code file (t3950.scala)

This example Scala source code file (t3950.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

app, app, enumeration, int, negative, negativeid, none, positive, some, test, test, value, value, zero

The Scala t3950.scala source code

object NegativeId extends Enumeration {
  val Negative = Value(-1, "minus")
  val Zero = Value(0, "zero")
  val Positive = Value(1, "plus")

  def fromInt(id: Int) = values find (_.id == id) match {
    case Some(v) => v
    case None => null
  }
}

object Test extends App {
  println(NegativeId.fromInt(-1))
  println(NegativeId.fromInt(0))
  println(NegativeId.fromInt(1))
}