1    /* 
2     * Program that paints 300 balloons in a blue sky. 
3     * 
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 AlternateBalloons {
16   
17       // REQUIRED INFRASTRUCTURE
18   
19       public AlternateBalloons() {
20           paintTheImage();
21       }
22   
23       public static void main(String[] args) {
24           SwingUtilities.invokeLater(new Runnable() {
25               public void run() {
26                   new AlternateBalloons();
27               }
28           });
29       }
30   
31       // THE PAINTER DOING ITS THING
32   
33       private void paintTheImage() {
34           SPainter painter = new SPainter("AlternateBalloons",600,600);
35           paintSky(painter); // ask IntelliJ to generate the stub
36           int nrOfBalloons = 300;
37           paintBalloons(painter,nrOfBalloons); // ask IntelliJ to generate the stub
38       }
39   
40       private void paintBalloons(SPainter painter, int nrOfBalloons) {
41           int i = 1;
42           while ( i <= nrOfBalloons ) {
43               paintOneBalloon(painter); // ask IntelliJ to generate the stub
44               i = i + 1;
45           }
46       }
47   
48       private void paintOneBalloon(SPainter painter) {
49           Random rgen = new Random();
50           int rn = rgen.nextInt(6);
51           Color myColor = new Color(1,45,6 );
52           Color myColor2 = new Color(125,40,50 );
53           Color myColor3 = new Color(50,250,100 );
54           Color myColor4 = new Color(125,45,150 );
55           Color myColor5 = new Color(245,45,6 );
56           Color myColor6 = new Color(250,250,100 );
57           if ( rn == 0 ) {
58               painter.setColor(myColor);
59           } else if (rn == 1 ) {
60               painter.setColor(myColor2);
61           } else if (rn == 2 ) {
62               painter.setColor(myColor3);
63           } else if (rn == 3 ) {
64               painter.setColor(myColor4);
65           } else if (rn == 4 ) {
66               painter.setColor(myColor5);
67           } else {
68               painter.setColor(myColor6);
69           }
70           painter.move();
71           int balloonRadius = 30;
72           SCircle balloon = new SCircle(balloonRadius);
73           painter.paint(balloon);
74           painter.setColor(Color.BLACK);
75           painter.draw(balloon);
76       }
77   
78       private void paintSky(SPainter painter) {
79           painter.setColor(Color.BLUE);
80           SSquare sky = new SSquare(2000);
81           painter.paint(sky);
82       }
83   }
84   
85