Text Area problem

[mcal]

Hi guys!

I have used a text area to display the contents of a textfile. I am trying to write some code so that when the data is displayed, i can add more data to this file, just by typing in the text area. I have set the setEditable to true, and this lets me edit the data. But the problem is that when i close the text Area which is displayed in a dialogue box, the edited data isn't saved. What can i do?

This is the code i have written:

Code:

import java.awt.BorderLayout;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
 
import javax.swing.JDialog;
import javax.swing.JTextArea;
import java.awt.*;
import javax.swing.*;
 
import java.awt.*;
import java.awt.event.*;
import java.awt.event.ActionListener.*;
import java.util.*;
import java.io.*;
import javax.swing.*;
import java.util.Calendar;
import java.awt.image.*;
import javax.imageio.*;
 
 
public class notes {
 
private JTextArea textArea;
public notes() {
super();
 
try{
 
 
JDialog dialog = new JDialog();
dialog.getContentPane().setLayout(new BorderLayout(10, 10));
 
String record = null;
File file = new File("notes.txt");
FileInputStream fileInput = new FileInputStream(file);
DataInputStream dis = new DataInputStream(fileInput);
 
BufferedWriter w;
w = new BufferedWriter(new FileWriter("notes.txt"));
 
String string = dis.readLine();
textArea = new JTextArea();
while(string != null){
textArea.append(string + "\n");
string = dis.readLine();
textArea.setBackground(Color.pink);
textArea.setFont(new Font("Times New Roman", Font.BOLD, 14));
textArea.setEditable(false);
textArea.write(w);
 
textArea.setForeground(Color.blue);
 
 
 
}
dialog.getContentPane().add(BorderLayout.CENTER, textArea);
dialog.setTitle("Notes");
dialog.setSize(800, 900);
 
       
 
dialog.setVisible(true);
 
 
}catch (Exception e){
e.printStackTrace();
}
 
}
 
public static void main(String[] args){
new notes();
}
}

Thanks a lot