import java.applet.Applet;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.awt.geom.Ellipse2D;


public class MouseMotionListenerTutorial
extends Applet
implements MouseMotionListener{

    private Graphics globalGraphics;

    public void init()
    {
        this.addMouseMotionListener(this);
    }

    public void paint(Graphics g)
    {
        this.setSize(new Dimension(500, 500));

        globalGraphics = g.create();


    }

    public void drawCircle(int x, int y, int width, int height)
    {
        globalGraphics.setColor(getRandomColor());
        Ellipse2D circle = new Ellipse2D.Double((double)x, (double)y, (double)width, (double)height);
        Graphics2D g2 = (Graphics2D) globalGraphics;
        g2.fill(circle);


    }
    public Color getRandomColor()
    {
        int red = (int) (Math.random() * 256);
        int green = (int) (Math.random() * 256);
        int blue = (int) (Math.random() * 256);

        return new Color(red, green, blue);
    }

    @Override
    public void mouseDragged(MouseEvent e) {
        int mouseX = e.getX();
        int mouseY = e.getY();

        drawCircle(mouseX, mouseY, 20, 20);

    }

    @Override
    public void mouseMoved(MouseEvent e) {


    }

}