How to flash point (oval) ?

Question

Hi,
I am using the Graphics, and give red color on the point (oval) that I designate.
The following is the way I am using:
g.setColor(Color.red);
g.fillOval(128,53,4,4);
However, I hope to flash the point (oval). Can you give me some clues?
Thanks.

Answer 1

Hi, EvilEdna,
Thank you for your program, and it is very good. However, I can not implement it.
The running result is also good, and I get one "Green....;Green..after" for each 500 milliseconds. But the color doesn't change at each 500 milliseconds. I think that it is strange, and the color should change. In fact the color doesn't change. Can you help me out? Thanks again.
I changed a little the following codes and they are :
protected void blinkLed(final Graphics circle, boolean enabled)
circle.setColor(Color.green);
circle.fillOval(128,53,4,4);
if (enabled)
if (timer == null)
timer = new Timer(500, new ActionListener()
     public void actionPerformed(ActionEvent ev)
     if (circle.getColor() == Color.green)
     System.out.println("Green....");                              circle.setColor(Color.red);
     circle.fillOval(110,53,4,4);
     System.out.println("Green..after");
     else
     circle.setColor(Color.green);
timer.start();
else
timer.restart();
else
if (timer != null)
timer.stop();