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   
17       //REQUIRED INFRASTRUCTURE
18   
19       public Balloons() {
20           paintTheImage();
21       }
22   
23       public static void main(String[] args) {
24           SwingUtilities.invokeLater(new Runnable() {
25               public void run() {
26                   new AlternateBalloons();
27               }
28           });
29       }
30   
31       // THE PAINTER DOING ITS THING
32   
33       private void paintTheImage() {
34           SPainter painter = new SPainter("Balloons", 600,600);
35           paintSky(painter); // ask IntelliJ to generate the stub
36           int nrOfBalloons = 100;
37           paintBalloons(painter,nrOfBalloons); // ask IntelliJ to generate the stub
38       }
39   
40       private void paintBalloons(SPainter painter, int nrOfBalloons) {
41           int i = 1;
42           while ( i <= nrOfBalloons ) {
43               paintOneBalloon(painter); // ask IntelliJ to generate the stub
44               i = i + 1;
45           }
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       private void paintSky(SPainter painter) {
68           painter.setColor(Color.BLUE);
69           SSquare sky = new SSquare(2000);
70           painter.paint(sky);
71   
72       }
73   }
74