Hi Friend,

import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class jf extends JPanel implements ActionListener{
JFrame f;
JLabel l;
JPanel p;
JTextArea ta;
JButton savebtn;
File fFile;
jf(){
f=new JFrame("Jfile chooser class example");
l=new JLabel("");
p=new JPanel();
ta=new JTextArea(30,50);
savebtn=new JButton("save") ;
fFile = new File ("default.java");
}
void display(){
try{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}catch(Exception e){}
f.getContentPane().add(p);
p.add(l);
p.add(ta);
p.add(savebtn);
f.setVisible(true);
savebtn.addActionListener(this);
}
public static void main(String z[]){
jf j=new jf();
j.display();
}
public void actionPerformed(ActionEvent ae){
Object obj=ae.getSource();
boolean status = false;
if(obj==savebtn){
try{
status = saveFile ();
}
catch (Exception ex){
JOptionPane.showMessageDialog(p,"Error Occured.....");
}
}
}
boolean openFile (){
JFileChooser fc = new JFileChooser ();
fc.setDialogTitle ("Open File");
fc.setFileSelectionMode ( JFileChooser.FILES_ONLY);
fc.setCurrentDirectory (new File ("."));
int result = fc.showOpenDialog (this);
if (result == JFileChooser.CANCEL_OPTION){
return true;
}
else if(result == JFileChooser.APPROVE_OPTION){
fFile = fc.getSelectedFile ();
String file_string = readFile (fFile);
if (file_string != null)
ta.setText (file_string);
else
return false;
}
else{
return false;
}
return true;
}
public String readFile (File file){
StringBuffer fileBuffer;
String fileString=null;
String line;
try{
FileReader in = new FileReader (file);
BufferedReader dis = new BufferedReader (in);
fileBuffer = new StringBuffer () ;
while ((line = dis.readLine ()) != null){
fileBuffer.append (line + "\n");
}
in.close ();
fileString = fileBuffer.toString();
}
catch (IOException e ){
return null;
}
return fileString;
}
public static boolean writeFile(File file,String dataString){
try{
PrintWriter out =new PrintWriter (new BufferedWriter (new FileWriter (file)));
out.print (dataString);
out.flush ();
out.close ();
}
catch(IOException e){
return false;
}
return true;
}
boolean saveFile(){
File file = null;
JFileChooser fc = new JFileChooser ();
fc.setCurrentDirectory (new File ("."));
fc.setSelectedFile (fFile);
int result = fc.showSaveDialog (this);
if (result == JFileChooser.CANCEL_OPTION){
return true;
}
else if (result == JFileChooser.APPROVE_OPTION){
fFile = fc.getSelectedFile ();
if (fFile.exists() ){
int response = JOptionPane.showConfirmDialog (null,"Overwrite existing file?","Confirm Overwrite",JOptionPane.OK_CANCEL_OPTION,JOptionPane.QUESTION_MESSAGE);
if (response == JOptionPane.CANCEL_OPTION) return false;
}
return writeFile (fFile,ta.getText ());
}
else{
return false;
}
}
}
Thanks