How to use modality exclusion in java

import java.awt.Dialog;
import java.awt.FlowLayout;

import javax.swing.JDialog;
import javax.swing.JFrame;

public class ApplicationModalDialogWithExcludeDemo {
public static void main(String[] args) {
final JFrame parent1 = new JFrame("Parent Frame 1");
parent1.setLayout(new FlowLayout());
parent1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

parent1.setBounds(100, 100, 200, 150);
parent1.setVisible(true);

JFrame parent2 = new JFrame("Parent Frame 2");
parent2.setBounds(500, 100, 300, 150);
parent2.setVisible(true);

JFrame parent3 = new JFrame("Parent Frame 3 - Excluded");
parent3.setBounds(300, 400, 300, 150);
parent3.setModalExclusionType(Dialog.ModalExclusionType.APPLICATION_EXCLUDE);
parent3.setVisible(true);

JDialog dialog = new JDialog(parent1, "Application-Modal Dialog",
Dialog.ModalityType.APPLICATION_MODAL);
dialog.setBounds(300, 200, 300, 150);
dialog.setVisible(true);

}
}