1    /* 
2     * program like balloons but the balloons are nameless colors 
3     */
4    
5    package npw;
6    
7    import painter.SPainter;
8    import shapes.SCircle;
9    import shapes.SSquare;
10   import javax.swing.*;
11   import java.awt.*;
12   import java.util.Random;
13   
14   public class AlternateBalloons {
15   
16       //REQUIRED INFRASTRUCTURE
17   
18       public AlternateBalloons() {
19           paintTheImage();
20       }
21   
22       public static void main(String[] args) {
23           SwingUtilities.invokeLater(new Runnable() {
24               public void run() {
25                   new Balloons();
26               }
27           });
28       }
29   
30       //  THE PAINTER DOING ITS THING
31   
32       private void paintTheImage() {
33           SPainter painter = new SPainter("Balloons", 600, 600);
34           paintSky(painter);
35           int nrOfBalloons = 300;
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               paintOnBalloon(painter);
49               i = i + 1;
50           }
51       }
52   
53       private void paintOnBalloon(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 = 30;
65           SCircle balloon = new SCircle(balloonRadius);
66           painter.paint(balloon);
67           painter.setColor(Color.BLACK);
68           painter.draw(balloon);
69       }
70   }
71