Read a file using in java pgm

Read a file using Applet

import java.applet.*;

import java.awt.*;

import java.io.*;

import java.net.*;

public class readFileApplet extends Applet

{

   String fileToRead = "test1.txt";

   StringBuffer strBuff;

   TextArea txtArea;

   Graphics g;

   public void init()

  {

      txtArea = new TextArea(100, 100);

      txtArea.setEditable(false);

      add(txtArea, "center");

      String prHtml = this.getParameter("fileToRead");

      if (prHtml != null) fileToRead = new String(prHtml); 

      readFile();

   }

   public void readFile()

  {

      String line;

      URL url = null;

      try{

         url = new URL(getCodeBase(), fileToRead);

      }

      catch(MalformedURLException e){}

      try

      {

         InputStream in = url.openStream();

    BufferedReader bf = new BufferedReader(new InputStreamReader(in));

         strBuff = new StringBuffer();

         while((line = bf.readLine()) != null)

         {

            strBuff.append(line + "\n");

         }

         txtArea.append("File Name : " + fileToRead + "\n");

         txtArea.append(strBuff.toString());

      }

      catch(IOException e)

     {

      e.printStackTrace();

      }

   }

}