import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.UIManager;
public class MainClass {
public static void main(final String args[]) {
UIManager.put("OptionPane.cancelButtonText", "Annuler");
UIManager.put("OptionPane.noButtonText", "Non");
UIManager.put("OptionPane.okButtonText", "D'accord");
UIManager.put("OptionPane.yesButtonText", "Oui");
int result = JOptionPane.showConfirmDialog(new JFrame(),
"Est-ce que vous avez 18 ans ou plus?", "Choisisez une option",
JOptionPane.YES_NO_CANCEL_OPTION);
if (result == JOptionPane.YES_OPTION) {
System.out.println("Yes");
} else if (result == JOptionPane.NO_OPTION) {
System.out.println("No");
} else if (result == JOptionPane.CANCEL_OPTION) {
System.out.println("Cancel");
} else if (result == JOptionPane.CLOSED_OPTION) {
System.out.println("Closed");
}
}
}