1    /* 
2     program that paints 100 red, yellow, and orange balloons in a blue sky. 
3     it will feature 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 Balloons {
16       public Balloons() {
17           paintTheImage();
18       }
19   
20       public static void main(String[] args) {
21           SwingUtilities.invokeLater(new Runnable() {
22               public void run() {
23                   new Balloons();
24               }
25           });
26       }
27   
28       private void paintTheImage() {
29           SPainter painter = new SPainter("Balloons", 600, 600);
30           paintSky(painter);
31           int nrOfBalloons = 100;
32           paintBalloons(painter,nrOfBalloons);
33       }
34   
35       private void paintSky(SPainter painter) {
36           painter.setColor(Color.blue);
37           SSquare sky = new SSquare(2000);
38           painter.paint(sky);
39       }
40   
41       private void paintBalloons(SPainter painter, int nrOfBalloons) {
42           int i = 1;
43           while (i<= nrOfBalloons) {
44               paintOneBalloon(painter);
45               i = i +1;
46           }
47       }
48   
49       private void paintOneBalloon(SPainter painter) {
50           Random rgen = new Random();
51           int rn = rgen.nextInt(3);
52           if (rn==0) {
53               painter.setColor(Color.red);
54           } else if (rn==1) {
55               painter.setColor(Color.orange);
56           } else {
57               painter.setColor(Color.yellow);
58           }
59           painter.move();
60           int balloonRadius = 20;
61           SCircle balloon = new SCircle(balloonRadius);
62           painter.paint(balloon);
63           painter.setColor(Color.black);
64           painter.draw(balloon);
65   
66       }
67   
68   
69   }
70