Making a game, timing problem

I'm about to make a game which uses swing. And when i do animation, on diffrent systems game executes at diffrent speeds. Here is how i solved it :

// private members

privatestaticint fps, frames, seconds;

// constructor

fps = 30;// assagning a default value

frames = 0;

seconds = System.currentTime();// or whatever it's called, i can't remember now

// main loop

frames++;// counting frames

if ( System.currentTime() - seconds > 1000 ){// if a second has passed

fps = frames;// assign fps

frames = 0;// restart value

seconds = System.currentTime();// update the seconds

}

That's how i calculate fps, which then i use in animation calculations. and so on.

I was just wondering is there a better solution to this ?

[1321 byte] By [Sasa_Ivanovic] at [2007-11-26 12:16:17]