import java.awt.*;

import java.awt.event.*;

import java.awt.geom.*;

import java.util.*;

import javax.swing.*;



public class DelayedPaint {



    private CenterPanel center;

    private JFrame frame;

    private JPanel panel;



    public static void main(String args[]) {

        EventQueue.invokeLater(new Runnable() {



            @Override

            public void run() {

                new DelayedPaint().createAndShowGUI();

            }

        });

    }



    void createAndShowGUI() {

        frame = new JFrame("Delayed Paint");

        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        frame.setSize(400, 400);

        panel = new JPanel(new BorderLayout());

        frame.setContentPane(panel);

        NorthPanel north = new NorthPanel();

        panel.add(north, BorderLayout.NORTH);

        center = new CenterPanel();

        panel.add(center, BorderLayout.CENTER);

        frame.setVisible(true);

        north.startTimer();

    }



    class NorthPanel extends JPanel {



        private JLabel lb;



        public NorthPanel() {

            lb = new JLabel("Good morning");

            add(lb);

        }



        public void startTimer() {

            ActionListener taskPerformer = new ActionListener() {



                @Override

                public void actionPerformed(ActionEvent evt) {

                    setLayout(new FlowLayout(FlowLayout.LEFT));

                    lb.setText("Left");

//    timer.stop(); // Not needed if setRepeats(false).