import java.io.*;
import java.util.prefs.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class WastedConversions extends HttpServlet {

  // Random file, for demo purposes only
  String name = "content.txt";

  public void doGet(HttpServletRequest req, HttpServletResponse res)
                               throws ServletException, IOException {

    String file = getServletContext().getRealPath(name);

    res.setContentType("text/plain");
    PrintWriter out = res.getWriter();

    returnFile(file, out);
  }

  public static void returnFile(String filename, Writer out)
                             throws FileNotFoundException, IOException {
    Reader in = null;
    try {
      in = new BufferedReader(new FileReader(filename));
      char[] buf = new char[4 * 1024];  // 4K char buffer
      int charsRead;
      while ((charsRead = in.read(buf)) != -1) {
        out.write(buf, 0, charsRead);
      }
    }
    finally {
      if (in != null) in.close();
    }
  }
}