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