Java Swing How to - Use Timer to close JOptionPane after few seconds

Question

We would like to know how to use Timer to close JOptionPane after few seconds.

Answer

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
// ww w.  j a  v a  2s  .co  m
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.Timer;

public class Main {
  public static void main(String[] args) {
    int TIME_VISIBLE = 3000;
    JFrame frame1 = new JFrame();
    frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame1.setSize(100, 100);
    frame1.setLocation(100, 100);

    JButton button = new JButton("My Button");
    frame1.getContentPane().add(button);

    button.addActionListener(e -> {
      JOptionPane pane = new JOptionPane("Message",
          JOptionPane.INFORMATION_MESSAGE);
      JDialog dialog = pane.createDialog(null, "Title");
      dialog.setModal(false);
      dialog.setVisible(true);

      new Timer(TIME_VISIBLE, new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
          dialog.setVisible(false);
        }
      }).start();
    });

    frame1.setVisible(true);

  }
}