Scala example source code file (hash.scala)

This example Scala source code file (hash.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

array, array, console, console, exception, exception, hashmap, hashmap

The Scala hash.scala source code

/* The Computer Language Shootout 
   http://shootout.alioth.debian.org/
   contributed by Isaac Gouy (Scala novice)
*/

import scala.collection.mutable.HashMap;

object hash {
   def main(args: Array[String]) = {
      val n = toPositiveInt(args);
      var count = 0;
      val table = new HashMap[String,Int]();

      for (val i <- Iterator.range(1,n+1)) 
         table += (Integer.toString(i, 16) -> i)

      for (val i <- Iterator.range(1,n+1)) 
         if (table contains Integer.toString(i, 10)) 
            count = count + 1;

      Console println(count);
   }


   private def toPositiveInt(s: Array[String]) = {
      val i = 
        try { Integer.parseInt(s(0)); } 
        catch { case e: Exception => 1 }

      if (i>0) i; else 1;
   }

}