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