JOptionPane.showConfirmDialog(null, "Pilih Mana Bro ?","Pertanyaan",JOptionPane.YES_NO_OPTION);
if (JOptionPane.showConfirmDialog(null, "Are you sure?", "WARNING",
JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
// yes option
} else {
// no option
}