An onsceen timer for game???

Hi,
I have to make a computer game in java3d and I'm pretty clueless, any help I could get here would be great.
Current problem : Once the user presses a "Start" button I want a timer counting down from 5 mins. I want to timer to be on screen so the user can see it the whole time he is playing the game and when the timer is up a message appears ie GAME OVER! and the game stops running.
Does anyone have any ideas or have done this before?? Heres some code on it I've hacked together so far.
Thanks,
Sean
//create start button to start game/timer
private Buttton go = new Button("Start");
Panel p = new Panel( );
p.add(go);
add("North",p);
go.addActionListener(this);
go.addKeyListener(this);
public void actionPerformed(ActionEvent e ) {
// start timer when button is pressed
if (e.getSource()==go){
//if (time timer is not running) ???
{ //start timer +display timer ???
//when timer == 0.00 add "game over" message to screen + stop game ???

That's how you would do it in Java2D, for sure.
If you want to put some Java2D stuff around your canvas, this kind of thing should work fine.
If you want to incorporate it into your 3d scene (the way most games work) you will need to find a way to write it into your Java3D scene. There are a few different ways of doing this- I have had some success by writing the text into a graphic and then using the graphic I have just created as a texture on a plane attached to my viewPlatform. I believe there is something clever you can do to write it directly onto the view instead of using geometry in the scene, but I don't recall what...

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How create timer for game?

I want to know how much time player spend in the game.
For this i want create a timer.
I thing it must be something like this:
player come to the game (time 0:00), player plaing for example 22 minutes, gameover game (player spend 22 minutes and 0 sec).
code:
import flash.utils.getTimer;
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Is this correct way?
If you know how to make code smaller can you please share?
Maybe exist standart component or something else for this?
Thank you.

Thank you guys!
Just asking how to make timer correct:)
I thout maybe you know existing standart coder or standart component for it?
For example i use the same timer for 5 games.. and for every game i need create code.. Is it possible to make code just one time and create something like standart components in Flash IDE ? Or maybe adobe have place where everyone can create components and share whit other? Or its all not possible, and need create the same code again?
By the way why i dont see my secons here?:
var gameStartTime:uint;
var gameTime:uint;
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Hello all,
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User Dustin destroyed. 0
User Dustin destroyed. 0
User Dustin destroyed. 0
User Dustin destroyed. 0
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INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 1
User Dustin destroyed. 1
User Dustin destroyed. 1
User Dustin destroyed. 1
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
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AFTER METHOD: false
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User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
INSIDE METHOD: false
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USER QUEUE: true
INSIDE METHOD: false
INSIDE METHOD: false
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User Dustin destroyed. 9
User Dustin destroyed. 9
User Dustin destroyed. 9
User Dustin destroyed. 9
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INSIDE METHOD: false
INSIDE METHOD: false
INSIDE METHOD: true
INSIDE METHOD: false
USER QUEUE: true
INSIDE METHOD: false
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That number should incremement for every instantiated User, and finalize can only be called once for each User object.
I thought this was impossible?
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I am already thinking of ideas to limit the number of threads.
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http://appletoolbox.com/2012/07/ipad-frozen-not-responding-how-to-fix/
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http://support.apple.com/kb/TS3274
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http://www.apple.com/retail/geniusbar/
 Cheers, Tom

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An onsceen timer for game???

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