Examples of charvax.swing.JFileChooser

charvax.swing.JFileChooser

The JFileChooser class displays a dialog from which the user can choose a file. The dialog is always modal (i.e. the user cannot interact with any other windows until he closes the dialog).

The dialog is displayed by calling its showDialog() method, which blocks until the dialog is closed (by the user pressing the Approve or Cancel buttons, or by pressing ENTER while the focus is in the "Filename" field). After the dialog has been closed, the program can find out what File was selected by calling the getSelectedFile() method.

The labels of the buttons that are displayed in the JFileChooser can be customized by changing the following static variables:

PARENT_DIRECTORY_LABEL
NEW_DIRECTORY_LABEL
APPROVE_LABEL
CANCEL_LABEL

"Accelerator keys" can also be set for the buttons. For example, to set the F1 key to have the same effect as pressing the CANCEL button, call the following code before using the JFileChooser:

 JFileChooser.CANCEL_LABEL = "Cancel (F1)"; JFileChooser.CANCEL_ACCELERATOR = KeyEvent.VK_F1;

Note that after the buttons have been customized, they stay customized for all future invocations of JFileChooser (until they are re-customized to some other value).


    /**
     * Demonstrate the JFileChooser.
     */
    private void testFileChooser() {
        JFileChooser chooser = new JFileChooser();
        chooser.setDialogTitle("A File Chooser");
        chooser.setForeground(Color.white);
        chooser.setBackground(Color.blue);
        chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);


        //  Uncomment this section of code to apply a FileFilter that masks out
        // all
        //  files whose names do not end with ".java".
        //  /* Construct an anonymous inner class that extends the abstract
        //   * FileFilter class.
        //   */
        //  charvax.swing.filechooser.FileFilter filter =
        //    new charvax.swing.filechooser.FileFilter() {
        //      public boolean accept(File file_) {
        //    String pathname = file_.getAbsolutePath();
        //    return (pathname.endsWith(".java"));
        //      }
        //  };
        //  chooser.setFileFilter(filter);


        if (chooser.showDialog(this, "Open File") == JFileChooser.APPROVE_OPTION) {


            String msgs[] = { "The selected file was:",
                    chooser.getSelectedFile().getAbsolutePath()};
            JOptionPane.showMessageDialog(this, msgs,
                    "Results of JFileChooser", JOptionPane.PLAIN_MESSAGE);
        } else {
            JOptionPane.showMessageDialog(this,
                    "The CANCEL button was selected",

        }
    }


    private void initFileChooser() {
        if (fc == null) {
            fc = new JFileChooser(directory);
            fc.setBackground(Color.cyan);
            fc.setForeground(Color.black);
            fc.setFileSelectionMode(ListSelectionModel.SINGLE_SELECTION);
            fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
        }

Examples of charvax.swing.JFileChooser

Related Classes of charvax.swing.JFileChooser