save dialog problem

[masa]

hi

I have a JFIleChooser.showSaveDialog() where I have used setSelectedFile to set a default filename. However, my problem is that when the user selects a subdirectory of the directory the filechooser opened in, then the default filename I set is replaced by the name of the directory the user double-clicked on to open.
How can I get the file name I set e.g. 'default.txt' to remain in the 'File name' text box when the user is navigating through different directories? I only ever want the filename to change if the user edits it manually.
Hope you can help

[masa]

here is the code........................

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class FileChooseApp extends JFrame implements ActionListener{
JMenuItem fMenuOpen = null;
JMenuItem fMenuSave = null;
JMenuItem fMenuClose = null;
JTextArea fTextArea;
JavaFilter fJavaFilter = new JavaFilter ();
File fFile = new File ("default.java");
FileChooseApp (String title) {
super (title);
Container content_pane = getContentPane ();
content_pane.setLayout ( new BorderLayout () );
fTextArea = new JTextArea ("");
content_pane.add ( fTextArea, "Center");
JMenu m = new JMenu ("File");
m.add (fMenuOpen = makeMenuItem ("Open"));
m.add (fMenuOpen = makeMenuItem ("Save"));
m.add (fMenuClose = makeMenuItem ("Quit"));
JMenuBar mb = new JMenuBar ();
mb.add (m);
setJMenuBar (mb);
setSize (400,400);
}
public void actionPerformed ( ActionEvent e ) {
boolean status = false;
String command = e.getActionCommand ();
if (command.equals ("Open")) {
status = openFile ();
if (!status)
JOptionPane.showMessageDialog (
null,
"Error opening file!", "File Open Error",
JOptionPane.ERROR_MESSAGE
);
} else if (command.equals ("Save")) {
status = saveFile ();
if (!status)
JOptionPane.showMessageDialog (
null,
"IO error in saving file!!", "File Save Error",
JOptionPane.ERROR_MESSAGE
);
} else if (command.equals ("Quit") ) {
dispose ();
}
}
private JMenuItem makeMenuItem (String name) {
JMenuItem m = new JMenuItem (name);
m.addActionListener (this);
return m;
}
boolean openFile () {
JFileChooser fc = new JFileChooser ();
fc.setDialogTitle ("Open File");
fc.setFileSelectionMode ( JFileChooser.FILES_ONLY);
fc.setCurrentDirectory (new File ("."));
fc.setFileFilter (fJavaFilter);
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)
fTextArea.setText (file_string);
else
return false;
} else {
return false;
}
return true;
}
boolean saveFile () {
File file = null;
JFileChooser fc = new JFileChooser ();
javax.swing.filechooser.FileFilter filter=null;
fc.setCurrentDirectory (new File ("."));
fc.setFileSelectionMode(JFileChooser.FILES_AND_DIR ECTORIES);
fc.addChoosableFileFilter(filter);
filter = fc.getFileFilter();
fc.setFileFilter (fJavaFilter);
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, fTextArea.getText ());
} else {
return false;
}
}

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;
}
public static void main (String [] args) {
String title="Frame Test";
if (args.length != 0) title = args[0];
FileChooseApp f = new FileChooseApp (title);
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE );
f.setVisible (true);
}

}

******************
JavaFilter.java
*****************

import javax.swing.*;
import java.io.*;
public class JavaFilter extends javax.swing.filechooser.FileFilter
{
public boolean accept (File f) {
return f.getName ().toLowerCase ().endsWith (".java")|| f.isDirectory ();
}
public String getDescription () {
return "Java files (*.java)" ;
}
}

[paul pasciak]

I compiled and ran your code.
It seems to work exactly the
way you want it to.

It's possible that on different
operating systems this code
works differently.

I ran this code on a Windows
System.