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 Balloons();
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);
36           int nrOfBalloons = 100;
37           paintBalloons(painter,nrOfBalloons);
38       }
39   
40       private void paintSky(SPainter painter) {
41           painter.setColor(Color.BLUE);
42           SSquare sky = new SSquare(2000);
43           painter.paint(sky);
44       }
45   
46       private void paintBalloons(SPainter painter, int nrOfBalloons) {
47           int i = 1;
48           while ( i <= nrOfBalloons ) {
49               paintOneBalloon(painter);
50               i = i + 1;
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   }