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 painter.SPainter;
9    import shapes.SCircle;
10   import shapes.SSquare;
11   
12   import javax.swing.*;
13   import java.awt.*;
14   import java.util.Random;
15   
16   public class Balloons {
17   
18       //REQUIRED INFRASTRUCTURE
19   
20       public Balloons() {
21           paintTheImage();
22       }
23   
24       public static void main(String[] args) {
25           SwingUtilities.invokeLater(new Runnable() {
26               public void run() {
27                   new Balloons();
28               }
29           });
30       }
31   
32       // THE PAINTER DOING ITS THING
33   
34       private void paintTheImage() {
35           SPainter painter = new SPainter("Balloons", 600, 600);
36           paintSky(painter); // ask IntelliJ to generate the stub
37           int nrOfBalloons = 100;
38           paintBalloons(painter,nrOfBalloons); // ask IntelliJ to generate the stub
39       }
40   
41       private void paintSky(SPainter painter) {
42           painter.setColor(Color.BLUE);
43           SSquare sky = new SSquare(2000);
44           painter.paint(sky);
45       }
46   
47       private void paintBalloons(SPainter painter, int nrOfBalloons) {
48           int i = 1;
49           while ( i <= nrOfBalloons) {
50               paintOneBalloon(painter); // ask IntelliJ to generate the stub
51               i = i + 1;
52           }
53       }
54   
55       private void paintOneBalloon(SPainter painter) {
56           Random rgen = new Random();
57           int rn = rgen.nextInt(3);
58           if (rn == 0 ) {
59               painter.setColor(Color.RED);
60           } else if (rn ==1) {
61               painter.setColor(Color.ORANGE);
62           } else {
63               painter.setColor(Color.YELLOW);
64           }
65           painter.move();
66           int balloonRadius = 20;
67           SCircle balloon = new SCircle(balloonRadius);
68           painter.paint(balloon);
69           painter.setColor(Color.BLACK);
70           painter.draw(balloon);
71       }
72   }
73