convert unix file format to dos file format?

File inputFile = new File("words.txt");
File outputFile = new File("wordsa.txt");

public void writeFile() throws IOException{

      BufferedWriter writer = new BufferedWriter(new FileWriter(outputFile));
      BufferedReader reader = new BufferedReader(new FileReader(inputFile));

      String line=null;
   
         while((line = reader.readLine()) != null)
   
               {
      writer.write(line + "\n");
      System.out.println(line);
      }

      reader.close();
      writer.close();
}

im making a copy of the file for processing and saving it onto "wordsa.txt"
the file format of "wordsa.txt" is in UNIX. (i viewed it in ultraedit)
how can i edit the codes such that "wordsa.txt" will be saved in DOS file format without me converting it manually?