jar package manually

assembly.bat

scalac GetLines.scala && COPY %SCALA_HOME%\lib\scala-library.jar . && jar cfm getlines.jar manifest.txt *.class *.jar && java -jar getlines.jar dict.txt

GetLines.scala

import scala.collection.mutable.BitSet
import scala.collection.mutable.Map

// Don't learn this code!
// Ugly implementation!
object GetLines {
  def main(args: Array[String]) {
    if (args.length < 1) {
      println("Please specify the file to count")
      return
    }

    // Prirequisite
    val dict = Map[String, BitSet]()

    // read lines
    var lineCount = 0
    for (line <- io.Source.fromFile(args(0),"Unicode").getLines) {

      // Parse line
      val tokens = line.split("\t")
      val code = tokens(0).toString
      if (code != "CODE") { // Remove header
        val floored_serial = tokens(1).toDouble.toInt

        // Add/Update dict
        if (dict.keySet.contains(code)) {
          var bs = dict(code)
          bs += floored_serial
        } else {
          var bs = BitSet(floored_serial)
          dict.put(code, bs)
        }
      }
    }
    println(dict.values.foldLeft(0)(_ + _.size))
  }
}

manifest.txt

Main-Class: GetLines
Class-Path: scala-library.jar