Duplicate Contacts - Java and Scala

DuplicateWords.java

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;

public class DuplicateWords {

    public static void main(String[] args) {
        try{
            FileReader fileReader = new FileReader(args[0]);
            BufferedReader br = new BufferedReader(fileReader);

            FileWriter outFile = new FileWriter(args[1]);
            PrintWriter out = new PrintWriter(outFile);

            removeDuplicates(br, out);

            fileReader.close();
            out.close();
        } catch (Exception e) {
            System.err.println("Error: " + e);
        }
    }

    public static void removeDuplicates(BufferedReader br, PrintWriter out)
        throws IOException {
        String strLine;

        Set<String> contactSet = new TreeSet<String>();
        while ((strLine = br.readLine()) != null)   {
            StringTokenizer st = new StringTokenizer(strLine, ";");
            while(st.hasMoreTokens()) {
                String name = st.nextToken().trim();
                contactSet.add(name);
                out.println(name + "; ");
            }
	    }
    }
}

DuplicateWords.scala

import io.Source
import java.io.FileWriter

object DupWords {
  def main(args: Array[String]) {
    val names = Source.fromFile(args(0)).mkString.split(";").toList.map(_.trim)
    val fw = new FileWriter(args(1))
    fw.write(names.distinct.mkString(";" + System.getProperty("line.separator")))
    fw.close()
  }
}