public static class MyDirectoryFilter extends javax.swing.filechooser.FileFilter {
@Override
public boolean accept(File file) {
Path path = file.toPath();
Path fileName = path.getFileName();
return !fileName.toString().equals("o");
}
@Override
public String getDescription() {
return "my custom dir";
}
}
...
JFileChooser fc = new JFileChooser();
fc.setFileFilter(new MyDirectoryFilter());