I am in URGENT need. Plz help me.

Question

First I will tell what I am doing -->
I am storing a table that was displayed in JTable, in a file.
Then when I click a button(Display table), a file chooser allows me to select that file in which I stored the table.
Now when I open that file I should see the table which I stored previously being displayed now in a JTable
My doubt -->
How will I read from the file the rows and columns. If I have the data being stored in resultset then I could very easily read and populate datas in table.
But now as I can't use Resultset as the data is not from querying a database; I dont know what I should do to read my rows and columns.
Please help me.

Answer 1

This is how I stored the table of Amortization(Bank Loan)
          JMenuItem saveas= new JMenuItem ("Save Amortization As");
          saveas.addActionListener(new ActionListener(){
               public void actionPerformed (ActionEvent e)
                    JFileChooser filechooser = new JFileChooser ();
                    filechooser.setFileSelectionMode ( JFileChooser.FILES_ONLY);
                    int result = filechooser.showSaveDialog (null);
                    if (result== JFileChooser.CANCEL_OPTION)
                         return;
                    File filename = filechooser.getSelectedFile();
                    if (filename==null||filename.getName().equals (" "))
                         JOptionPane.showMessageDialog( null, "Invalid File Name", "Invalid FileName", JOptionPane.ERROR_MESSAGE );
                    else {
                         try
                              //System.out.println("I am ready to create the streams");
                              FileOutputStream file = new FileOutputStream(filename, true);
                              OutputStreamWriter filestream = new OutputStreamWriter(new BufferedOutputStream(file));
                              /*String info= "The data is based on"+"\n";
                              filestream.write(info);
                              System.out.println("I wrote the first string called info");
                              String interestdata= "INTEREST:"+" "+interest+"\n";
                              filestream.write(interestdata);
                              String timedata="The amortization period is:"+" "+time+"\n";
                              filestream.write(timedata);
                              String loandata="The money borrowed is:"+" "+moneyFormat.format(loannumber)+"\n";
                              filestream.write(loandata);
                              String totals= "Total of Payments Made:"+" " +moneyFormat.format(totalpayments)+"\n"+"Total Interest Paid:"+"  "+moneyFormat.format(totalinterest)+"\n";
                              filestream.write(totals);
                              String filestring = "PAYMENT NUMBER"+"   " + "PAYMENT" + "   " + " PRINCIPLE" + "   " + "INTEREST" +"   " + " BALANCE" + "\n";
                              filestream.write(filestring);
                              double loannumberkf= loannumber;
                              System.out.println(timenumber);
                              for (int j=1; j<=timenumber ; j++ )
                                   double principlekf=payment-loannumberkf*z;
                                   double balancef=loannumberkf-principlekf;
                                   String display ="\n"+ Integer.toString(j)+"                " + moneyFormat.format(payment)+"        "+ moneyFormat.format(principlekf)+ "     "+moneyFormat.format(loannumberkf*z)+ "     "+ moneyFormat.format(balancef)+"\n";
                                   filestream.write(display);
                                   loannumberkf=loannumberkf-principlekf;
                              filestream.flush();
                              file.close();
                         catch ( IOException ioException )
                              JOptionPane.showMessageDialog (null, "File Does not exist", "Invalid File Name", JOptionPane.ERROR_MESSAGE);
);