1    package npw;
2    import java.awt.Color;
3    import java.util.Random;
4    import javax.swing.SwingUtilities;
5    
6    import painter.SPainter;
7    import shapes.SRectangle;
8    
9    
10   public class Invention2 {
11       public Invention2() {
12           paintTheImage();
13       }
14   
15       public static void main(String[] args) {
16           SwingUtilities.invokeLater(new Runnable() {
17               public void run() {
18                   new Invention2();
19   
20               }
21           });
22       }
23    private void paintTheImage(){
24           SPainter painter= new SPainter("Invention 2",600,600);
25           int nrOfRectangles= 30;
26           paintRectangles(painter,nrOfRectangles);
27    }
28   private void paintRectangles(SPainter painter, int nrOfRectangles){
29           int i=1;
30           while (i<=nrOfRectangles){
31               paintOneRectangle(painter, i);
32               i= i+1;
33           }
34   }
35   private void paintOneRectangle(SPainter painter, int i){
36       SRectangle rectangle= new SRectangle(50,50);
37       if(i > 20) {
38           painter.setColor(Color.RED);
39       } else if(i>10) {
40           painter.setColor(Color.GRAY);
41       }else if(i < 10) {
42           painter.setColor(Color.BLUE);
43       }
44   painter.move();
45       painter.paint(rectangle);
46       painter.setColor(Color.BLACK);
47       painter.draw(rectangle);
48   }
49   
50   }
51