import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
public class NoButtonPopup {
public static void main(String args[]) {
JFrame frame = new JFrame("NoButton Popup");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton button = new JButton("Ask");
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
Component source = (Component) actionEvent.getSource();
int response = JOptionPane.showOptionDialog(source, "",
"Empty?", JOptionPane.DEFAULT_OPTION,
JOptionPane.QUESTION_MESSAGE, null, new Object[] {},
null);
System.out.println("Response: " + response);
}
};
button.addActionListener(actionListener);
Container contentPane = frame.getContentPane();
contentPane.add(button, BorderLayout.SOUTH);
frame.setSize(300, 200);
frame.setVisible(true);
}
}