Java - dessiner histogramme

Bonjour,

import java.applet.Applet;
import java.awt.Graphics;

public class Histogramme extends Applet {

//La formule de ton histogramme :
double f(double x) {
return (Math.cos(x / 5) + Math.sin(x / 7) + 2) * getSize().height / 4;
}

public void paint(Graphics g) {
for (int x = 0; x < getSize().width; x+=20) {
g.drawLine(x, getSize().width, x, (int) f(x + 1));
}
}
}