1    /* 
2     * Program that paints 100 red, yellow, and orange balloons in a blue sky. 
3     * It will feat. commands. 
4     */
5    
6    package npw;
7    
8    import java.awt.Color;
9    import java.util.Random;
10   import javax.swing.SwingUtilities;
11   import painter.SPainter;
12   import shapes.SCircle;
13   import shapes.SSquare;
14   
15   public class AlternateBalloons {
16   
17       public AlternateBalloons() {
18           paintTheImage();
19       }
20   
21       public static void main(String[] args) {
22           SwingUtilities.invokeLater(new Runnable() {
23               public void run() {
24                   new AlternateBalloons();
25               }
26           });
27       }
28   
29       private void paintTheImage() {
30           SPainter painter = new SPainter("AlternateBalloons", 600, 600);
31           paintSky(painter);
32           int nrOfBalloons = 300;
33           paintBalloons(painter,nrOfBalloons);
34       }
35   
36       private void paintSky(SPainter painter) {
37           painter.setColor(Color.BLUE);
38           SSquare sky = new SSquare(2000);
39           painter.paint(sky);
40       }
41   
42       private void paintBalloons(SPainter painter, int nrOfBalloons) {
43           int i = 1;
44           while (i <= nrOfBalloons) {
45               paintOneBalloon(painter);
46               i = i + 1;
47           }
48       }
49   
50       private void paintOneBalloon(SPainter painter) {
51           Random rgen = new Random();
52           int rn = rgen.nextInt(6);
53           if (rn == 0) {
54               painter.setColor(Color.getHSBColor(52,66,91));
55           } else if (rn == 1) {
56               painter.setColor(Color.getHSBColor(291,55,66));
57           } else if (rn == 2) {
58               painter.setColor(Color.getHSBColor(231,29,83));
59           } else if (rn == 3) {
60               painter.setColor(Color.getHSBColor(351,29,83));
61           } else if (rn == 4) {
62               painter.setColor(Color.getHSBColor(201,44,78));
63           } else {
64               painter.setColor(Color.getHSBColor(171,55,66));
65           }
66           painter.move();
67           int balloonRadius = 30;
68           SCircle balloon = new SCircle(balloonRadius);
69           painter.paint(balloon);
70           painter.setColor(Color.BLACK);
71           painter.draw(balloon);
72       }
73   
74   
75   }
76