Converting a double to an int

Can I convert a variable of type double to a variable of type int? The reason for this is I am creating a program that will draw graphs of parabolas, cubics, etc. and the user will be able to change the values for stretches, translations, etc.
So my code for the drawing of a parabola at the moment is somewhat primitive, I just want the basic parabola drawn in. I've done a program that does exactly this using Turing (of all things...) but Java is proving to be more picky.
int count = 0;
int X = 0;
double tempY = 0;
int Y = 0;
while(count <= 600){
     tempY = Math.pow(X - 300,2) + 200;
     Y = tempY;     //error here
     if(Y >= 0 && Y <= 400){
          g.fillOval(X, Y, 1, 1);
     count++;
     X++;
     }Don't worry about paintComponent() and all that, it's there I'm just posting the necessary parts you guys need to see.
So the error I get is 'possible loss of precision' at the line indicated, and I know this, it's pretty obvious, but this is what I want/need to do as the fillOval will only accept ints for it's coordinates. I also tried forgetting about having the double value of tempY and doing the math to an int but then I get 'possible loss of precision' in the math line. If anyone can give me ideas/fixes to change a double into an int it would be much appreciated as this is what I really want to do, or if you can come up with alternative ways of doing what I need to do that would also be appreciated.
EDIT
In case you are wondering why I am adding and subtracting those values it's because my panel I'm drawing on is (600,400) and of course (0,0) is the top left corner rather than the center where it would be on a Cartesian plane, so I think I've made all the necassary adjustments so (0,0) is now in essentially the center of the panel. It's basically scanning across from the left to right and finding X^2 from '-300' to '300' but only drawing it in if the value for Y will appear in the panel. I know it's pretty fucked up and probably some really messy code, lol. I'm somewhat inexperienced and probably being a bit too adventurous.
Edited by: vortex on Jan 15, 2008 11:07 AM
Edited by: vortex on Jan 15, 2008 11:15 AM

I haven't tried that, I will try that when I get to school. I think the issue could be that -300^2 may be too big to be an int? I was just thinking before I fell asleep about it last night and that could be it too...So naturally I'll just start from say, -100, or even -25 as that isn't exactly gonna fit on the graph so I'm just wasting processor power currently I suppose. Anyways I'm gonna try both of these out and get back to you guys.
Another issue I'm foreseeing is that one of the graphs is the root of x, so I'm going to be dealing with decimals, that's fine for double but when I turn that into an int (assuming I ever figure out how to, hoping your idea, possibly coupled with mine works) how can I round/drop the decimals?
Edited by: vortex on Jan 16, 2008 8:10 AM

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