// This example generates a pseudo pointiliste painting
//  It was derived from a totally different example in
// the book _Java in a Nutshell_ by David Flanagan.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or implied.

import java.applet.*;    // Don't forget these import statements!
import java.awt.*;
import java.util.*;      // Use Random

public class Surat2 extends Applet {
/** A demonstration of graphics and the Random Class
*/
	public void init() {
	}//init

/** Number of points in sample */
	static final int N=8000;

/** Number of colors used */
	static final int C=50;

/** Size of square in which data is plotted, pixels*/
	public static final double size=400.0;

/** Size of dot radius in pixels*/
	static final int dot=1;

/** Range of color component */
	static final int NCOLOR=255;
/** comput color component */
	static int colorComponent(double d)
	{
		return (int)(d*NCOLOR);
	}//colorComponent

/** Plots random points
<p> Select color and put small dots at pseudo random places
*/
    public void paint(Graphics g) {
	int x,y;//Coordinates

	Random rng=new Random(); //a random number generator.

	for(int c=0; c<C; c++){

		for(int i=0; i<N; i++){
			x=(int)(rng.nextDouble()*size);
			y=(int)(rng.nextDouble()*size);
			g.setColor(new Color( colorComponent((double)x/size),
				  colorComponent((double)y/size),
				  colorComponent(rng.nextDouble())
			));
			g.fillOval(x-dot,y-dot,2*dot,2*dot);
		}//i
	}//c
     }//paint

/**When used as an application the main program
	creates the window in which the message is painted.
*/
    public static void main(String args[]) {
	Surat2 surat = new Surat2();
	surat.init();
	surat.start();

	Frame f = new Frame("Surat2");
	f.add("Center", surat);
	f.resize((int)surat.size+5, (int)surat.size+5);
	f.show();
    }
}