Android view text file issue

// try opening the myfilename.txt
  try {
    // open the file for reading
    InputStream instream = openFileInput("myfilename.txt");
 
    // if file the available for reading
    if (instream) {
      // prepare the file for reading
      InputStreamReader inputreader = new InputStreamReader(instream);
      BufferedReader buffreader = new BufferedReader(inputreader);
                 
      String line;
 
      // read every line of the file into the line-variable, on line at the time
      while (( line = buffreader.readLine())) {
        // do something with the settings from the file
      }
 
    }
     
    // close the file again       
    instream.close();
  } catch (java.io.FileNotFoundException e) {
    // do something if the myfilename.txt does not exits
  }