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       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 paintSky(SPainter painter) {
40           painter.setColor(Color.BLUE);
41           SSquare sky = new SSquare(2000);
42           painter.paint(sky);
43       }
44   
45       private void paintBalloons(SPainter painter, int nrOfBalloons) {
46           int i = 1;
47           while (i <= nrOfBalloons) {
48               paintOneBalloon(painter);
49               i = i + 1;
50           }
51       }
52   
53       private void paintOneBalloon(SPainter painter) {
54           Random rgen = new Random();
55           int rn = rgen.nextInt(3);
56           if (rn == 0) {
57               painter.setColor(Color.RED);
58           } else if (rn == 1) {
59               painter.setColor(Color.ORANGE);
60           } else {
61               painter.setColor(Color.YELLOW);
62           }
63           painter.move();
64           int balloonRadius = 20;
65           SCircle balloon = new SCircle(balloonRadius);
66           painter.paint(balloon);
67           painter.setColor(Color.BLACK);
68           painter.draw(balloon);
69       }
70   }
71