Scala example source code file (bug0082.scala)

This example Scala source code file (bug0082.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

a, a, array, boolean, int, int, list, list, main, none, option, some, some

The Scala bug0082.scala source code

object Main {

    def min0[A](less: (A, A) => Boolean, xs: List[A]): Option[A] = xs match {
        case List()  => None
        case List(x) => Some(x)
//      case x :: Nil => Some(x)
        case y :: ys => (min0(less, ys): @unchecked) match {
            case Some(m) => if (less(y, m)) Some(y) else Some(m)
        }
    }

    def min(xs: List[Int]) = min0((x: Int, y: Int) => x < y, xs);

    def main(args: Array[String]) =
        Console.println(min(List()));

}