Scala example source code file (bounds.scala)

This example Scala source code file (bounds.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

b, b1, b1, b2, c, c, iterable, iterator, listmap, listmap, map, map, pair, y

The Scala bounds.scala source code

trait Map[A, +C] {
  def ++ [B1 >: C] (kvs: Iterable[Pair[A, B1]]): Map[A, B1] = this
  def ++ [B1 >: C] (kvs: Iterator[Pair[A, B1]]): Map[A, B1] = this
}

class ListMap[A, +B] extends Map[A, B] {}

object ListMap {
  def empty[X, Y] = new ListMap[X, Y]
  def apply[A1, B2](elems: Pair[A1, B2]*): Map[A1, B2] = empty[A1,B2].++(elems.iterator)
}