renameTo()?

[Pete Dawson]

Hi,

I'm trying to write a simple GUI file renamer using Netbeans 6.8 on Windows. I am having problems getting the renameTo() method to work.

Can anyone see what I am doing wrong?

private void selectButtonMouseClicked(java.awt.event.MouseEvent evt) {                                          
        
        fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
        int returnVal = fc.showDialog(selectButton, "Select");
        if (returnVal == JFileChooser.APPROVE_OPTION) {
            File file = fc.getSelectedFile();
            System.out.println("Opening: " + file.getName());        
            File tempFile = new File(file.getName());
            //Now invoke the renameTo() method on the reference, tempFile in this case
            System.out.println("Renaming to: " + "fork.jpg");
            boolean success = tempFile.renameTo(new File("fork.jpg"));
           
            if (success) {
            System.out.println("File was successfully renamed.\n");
                } else {
                        System.out.println("File was not successfully renamed.\n");
                }
           
        } else {
            System.out.println("Open command cancelled by user.");
        }

It did actually work when I ran it using java -jar from the dist directory in a DOS command window and the file was in the same directory. I'm wondering if it is a permissions problem.

thanks

Pete

[Christophe Verré]

What happens if you use the fullpath of the file, instead of just the filename ?

[Ernest Friedman-Hill]

This line:

File tempFile = new File(file.getName());

discards all the information about the file's path, keeping only the name. Java will therefore be looking for a file by that name in the current directory. If that's where the file is, then the code will work, but if it's anywhere else, it won't. Just don't do this "tempFile" thing -- use the File object you get from the chooser directly.

[Pete Dawson]

Thanks, that did it. I can see why now.

Pete