import java.applet.Applet;
import java.awt.*;
import java.lang.*;


public class SimpleApplet extends Applet
{
	int i, nPaint;
	int nPts = 200;
	double y[];
	double x[];

	double mx,my,bx,by; 

	public void init(){
		y=new double[nPts]; 
		x=new double[nPts];
		nPaint=0;
	
		for(i = 0;i < nPts; i++){
			x[i]=1.*i*Math.PI/nPts;
			y[i]=Math.sin(x[i]);
		}
		world2win(0,1,Math.PI,0.0);

	}	

	public void paint(Graphics g)	{
		int x1,x2, y1,y2; 
		nPaint++;
		
		x1=(int)(mx*x[0]+bx);
		y1=(int)(my*y[0]+by);

		for(i = 0;i < nPts; i++)	{
			x2=(int)(mx*x[i]+bx);
			y2=(int)(my*y[i]+by);
			g.drawLine(x1,y1,x2,y2);
			
			x1=x2;
			y1=y2;
		}
		g.drawString("Number of paint calls:"+nPaint,80,75);
	}

	void world2win(double xl, double yt, double xr, double yb)
	{
		double lm=5., rm=295., tm=5., bm=95.;
		
		mx = (lm-rm) / (xl-xr);
		bx = (xl*rm-xr*lm) / (xl-xr);
		my = (tm-bm) / (yt-yb);
		by = (yb*tm-yt*bm) / (yb-yt);	
	}


}