Constructor
final JFrame frame = f;
final JFileChooser chooser = new JFileChooser();
// If want the user to select only directories, use this.
// Default is to allow selection of files only.
// Note if you set the selection mode to DIRECTORIES_ONLY,
// it no longer displays any files, even with the file view.
// chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
// If want it to only show certain file types, use a FileFilter.
// N.B. JFileFilter is not in javax.swing; it is my implementation
// of interface javax.swing.filechooser.FileFilter, and is similar
// to the ExtentionFilter in demo/jfc accompanying the J2SE SDK.
JFileFilter filter = new JFileFilter();
filter.addType("java");
filter.addType("class");
filter.addType("jar");
filter.setDescription("Java-related files");
chooser.addChoosableFileFilter(filter);
JButton b = new JButton("Choose file...");
add(b);
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
int returnVal = chooser.showOpenDialog(frame);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = chooser.getSelectedFile();
System.out.println("You chose a " +
(file.isFile() ? "file" : "directory") +
" named: " + file.getPath());
} else {
System.out.println("You did not choose a filesystem object.");
}
}
});
