import javax.swing.JOptionPane;
public class Main {
public static void main(String args[]) {
int choose = JOptionPane.showConfirmDialog(null, "Open Dialog ??");
if (choose == JOptionPane.YES_OPTION) {
JOptionPane.showMessageDialog(null, "You Clicked Yes !!");
} else if (choose == JOptionPane.NO_OPTION) {
JOptionPane.showMessageDialog(null, "You Clicked NO");
}
}
}