Files and Streams java -- Sequential access file-- Plz help me

Question

I am able to add records in sequential file and then also I am able to display each record sequentially.
But after closing the file if I open the file for adding records, the newly added records are not being displayed while clicking the "next" button to read them.
How to bring the pointer to end of records in sequential file , so that when I stat adding records after opening an existing file, they should be added successively after the last record in that file.
enter = gui.getTask1();
          enter.setText("Enter");
          enter.setEnabled(true);
          try
          FileOutputStream fos = new FileOutputStream("c:/file.txt",true);
          output = new ObjectOutputStream(fos);
          enter.addActionListener(
                    new ActionListener()
                         public void actionPerformed( ActionEvent e )
                              addRecord1();
          catch(Exception e)
               System.out.println("Error in ObjectOutputStream before pressing Enter button");
private void addRecord1()
          String[] fieldValues = gui.getFieldValues();
          if(! fieldValues[0].equals(""))
               try
                    int id=Integer.parseInt(fieldValues[0]);
                    if(id>0)
                         Record rcrd = new Record(id, fieldValues[1], fieldValues[2]);
                         System.out.println(" " +rcrd.getString()+"\n");
                         output.writeObject(rcrd);
                         output.flush();
                         gui.clearFields();
                         display.append(" "+rcrd.getId()+" "+rcrd.getName()+" "+rcrd.getAddr()+"\n");
                         readf.setEnabled(true);
               catch (NumberFormatException nfe)
                    JOptionPane.showMessageDialog(this, "Incorrect id", "Invalid number formate", JOptionPane.ERROR_MESSAGE);
               catch (IOException io)
                    closeFile();
     }Message was edited by:
MissJavaa

Answer 1

You can't append multiple ObjectOutputStreams to the same file unless you know where one ends and the other starts and you use a new ObjectInputStream at each join. And even that mightn't work because of buffering. Keep the file open or start a new file.
And I wouldn't call the file 'file.txt', it isn't a text file.