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    import java.awt.Color;
7    import java.util.Random;
8    import javax.swing.SwingUtilities;
9    import painter.SPainter;
10   import shapes.SCircle;
11   import shapes.SSquare;
12   public class Balloons {
13   
14       // REQUIRED INFRASTRUCTURE
15   
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       // THE PAINTER DOING ITS THING
28   
29       private void paintTheImage() {
30           SPainter painter = new SPainter("Balloons", 600, 600);
31           paintSky(painter); // ask IntelliJ to generate the stub
32           int nrOfBalloons = 100;
33           paintBalloons(painter,nrOfBalloons); // ask IntelliJ to generate the stub
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); // ask IntelliJ to generate the stub
46               i = i + 1;
47           }
48   
49       }
50       private void paintOneBalloon(SPainter painter) {
51           Random rgen = new Random();
52           int rn = rgen.nextInt(3);
53           if ( rn == 0 ) {
54               painter.setColor(Color.RED);
55           } else if ( rn == 1 ) {
56               painter.setColor(Color.ORANGE);
57           } else {
58               painter.setColor(Color.YELLOW);
59           }
60           painter.move();
61           int balloonRadius = 20;
62           SCircle balloon = new SCircle(balloonRadius);
63           painter.paint(balloon);
64           painter.setColor(Color.BLACK);
65           painter.draw(balloon);
66       }
67   }