Follow up to comments:
and i have error in (Handler)
private class Handler implements ActionListener
how can solve it?
probably because the inherited method is called "action
Performed".
please also read about it here:
ActionListener[
^] @ the Java Tutorials
You can start the Windows File Explorer by telling the system to do so:
try {
Process oProcess = new ProcessBuilder("explorer.exe", "/select,C:\\directory\\political").start();
}
catch(Exception oException){
oException.printStackTrace();
}