Threads as events

[carpeliam]

I'm just starting with threads, and I'm having a bit of trouble... I have a class called Timer, which basically draws a filled rectangle in a decremented for loop as shown:<br>
<br>
class Timer extends Thread {<br>
    private Graphics g;<br>
<br>
    public Timer (Graphics graphics) {<br>
        g = graphics;<br>
    }<br>
    public void run () {<br>
        for (int width = 250; width &gt;= 0; width--) {<br>
            if (width &gt; 40) g.setColor(Color.green);<br>
            else g.setColor(Color.red);<br>
            g.fillRect(8, 36, width, 6);<br>
            g.setColor(Color.black);<br>
            g.fillRect((width + 8), 36, (250 - width), 6);<br>
            try {<br>
                Thread.sleep(80);<br>
            }<br>
            catch (InterruptedException e) {<br>
                System.err.println(&quot;sleep exception in timer&quot;<br>
            }<br>
        }<br>
    }<br>
}<br>
<br>
in my main applet, I have &quot;timer = new Timer(g); timer.start();&quot; when a button is pressed.<br>
<br>
Here's my problem... something needs to be invoked when the timer &quot;runs out&quot;, ie, when the for loop is done. It's rather easy to do something inside of the Timer class, but I would much rather be able to control it from inside the main applet class which is invoking the timer. Is there some kind of ThreadListener that is aware when a thread has run its course? How do you detect when a thread has finished?<br>
<br>
Much thanks... <p>Liam Morley<br><a href=mailto:lmorley@wpi.edu>lmorley@wpi.edu</a><br><a href=

http://www.wpi.edu/~lmorley/>

] :: imotic :: website :: [</a><br>"light the deep, and bring silence to the world.<br>
light the world, and bring depth to the silence."

 

[Otto]

Hi!<br>
<br>
isAlive();<br>
<br>
But when the run() is finished, the thread will be destroyed, and can not be accessed.<br>
If you can only invoke something when the run is finished, make and set a &quot;finished&quot; variable, or simply invoke the desired method of the applet.<br>
<br>
Good luck. Bye, Otto.<br>