balloons.java
package npw;
import java.awt.Color;
import java.util.Random;
import javax.swing.SwingUtilities;
import painter.SPainter;
import shapes.SCircle;
import shapes.SSquare;
class Balloons
{
    public Balloons()
    {
        paintTheImage();
    }
    public static void main(String[] args)
    {
        SwingUtilities.invokeLater(new Runnable()
        {
            public void run()
            {
                new Balloons();
            }
        });
    }
    private void paintTheImage() {
        SPainter painter = new SPainter("Balloons", 600, 600);
        paintSky(painter);
        int nrOfBalloons = 100;
        paintBalloons(painter, nrOfBalloons);
    }
    private void paintSky(SPainter painter)
    {
        painter.setColor(Color.BLUE);
        SSquare sky = new SSquare(2000);
        painter.paint(sky);
    }
        private void paintBalloons(SPainter painter, int nrOfBalloons)
        {
            int i = 1;
            while (i <= nrOfBalloons)
            {
                paintOneBalloon(painter);
                i = i + 1;
            }
        }
        private void paintOneBalloon(SPainter painter)
        {
            Random rgen = new Random();
            int rn = rgen.nextInt(3);
            if (rn == 0)
            {
                painter.setColor(Color.RED);
            }
            else if (rn ==1)
            {
                painter.setColor(Color.ORANGE);
            }
            else
            {
                painter.setColor(Color.YELLOW);
            }
            painter.move();
            int balloonRadius = 20;
            SCircle balloon = new SCircle(balloonRadius);
            painter.paint(balloon);
            painter.setColor(Color.BLACK);
            painter.draw(balloon);
        }
}