Java Help - Making an Analogue Clock

Si MPS · 17 Mar 2007 at 16:38

Hi,

I've got to put an 'analogue' clock into this little piece of coursework im doing (a countdown game, in java) and i was wondering if anyone actually knew how to do this? i've got to get it to countdown from 30 (like on the tv show) but i dont have any idea as to how to do it.

Any help would be appreciated

JIMA · 17 Mar 2007 at 17:06

You might find this useful if you're using Swing...

Have you had a look at the javax.swing.Timer class? This can call an action listener at a specified interval. You could, I think, use it to fire off code to redraw your clock every second. If you're using JavaScript in a HTML page then there is also a timer function you could use.

To draw the clock you might need to look at plotting points on a panel using the equation for drawing a circle. I can't remember if there is a dedicated Swing function for drawing circles.

Plotting the hands will then involve using a bit of trigonometry etc. to work out where the end point of each line will be for a given degree around an origin.

Hope that helps a bit. Been a while since I did Swing stuff so hope that's not too far off the mark.

Jim

Si MPS · 17 Mar 2007 at 19:00

Cheers buddy, i'll have a look into that!

MrWhippy · 18 Mar 2007 at 19:05

The very first link from a Google of "java analogue clock source"

now obviously you'll only look at the source for reference, and not just copy the code in your assignment.