import java.applet.Applet;    
import java.awt.Graphics; 
public class SineApplet2 extends Applet {
public void paint(Graphics g) {
int i, j1, j2;
j1 = yvalue(0);
for (i = 0; i < size().width; i++) {
j2 = yvalue(i+1);
g.drawLine(i, j1 ,i+1, j2);
j1 = j2;
}
}
private int yvalue(int ivalue)  {
double xmin = -10.0;
double xmax =  10.0;
double ymin = -1.0;
double ymax =  1.0;
double x, y;
int jvalue;
x = (ivalue * (xmax - xmin)/(size().width - 1)) + xmin;
y = Math.sin(x);
jvalue = (int) ((y - ymin)*(size().height - 1)/
(ymax - ymin));
jvalue = size().height - jvalue;
return jvalue;
}
}