1    package NPW;
2    
3    import java.awt.*;
4    import java.util.Random;
5    import java.util.Scanner;
6    import javax.swing.JOptionPane;
7    import javax.swing.SwingUtilities;
8    import painter.SPainter;
9    import shapes.SCircle;
10   
11   public class Number4 {
12       // The solution to the graphical problem.
13       String whatcolor =getString("What Color man? ");
14       Color color = getcolor(whatcolor);
15       private void paintTheImage() {
16           // Get the input information from the user.
17   
18           int nrOfRows = getNumber("rows");
19           int nrOfColumns = getNumber("columns");
20           int sizeOfCirc = getNumber("Circle radius length");
21   
22           // Establish the painter.
23           int height = nrOfRows * sizeOfCirc;
24           int width = nrOfColumns * sizeOfCirc;
25           SPainter miro = new SPainter("Simple Dots",width+50,height+50);
26           miro.setBrushWidth(4);
27           SCircle circ = new SCircle(sizeOfCirc);
28   
29           // Paint the circles.
30           paintCircles(miro,circ,nrOfRows,nrOfColumns);
31       }
32   
33   
34       private static int getNumber(String prompt) {
35           String nss = JOptionPane.showInputDialog(null,prompt+"?");
36           Scanner scanner = new Scanner(nss);
37           return scanner.nextInt();
38       }
39       private static String getString(String prompt) {
40           String nss = JOptionPane.showInputDialog(null,prompt+"?");
41           Scanner scanner = new Scanner(nss);
42           return scanner.next();
43       }
44   
45       private  void paintCircles(SPainter miro, SCircle circ,
46                                        int nrOfRows, int nrOfColumns) {
47           // Position the painter to paint the rectangle of squares.
48           miro.mlt(((nrOfColumns-1)/2.0) * circ.radius());
49           miro.mbk(((nrOfRows-1)/2.0) * circ.radius());
50   
51           // Paint the rectangle of squares.
52           int i = 1;
53           while ( i <= nrOfRows) {
54               paintOneRow(miro,nrOfColumns, circ);
55               miro.mfd(circ.radius());
56               i = i + 1;
57           }
58   
59           // Make the method invariant with respect to painter position.
60           miro.mrt(((nrOfColumns-1)/2.0) * circ.radius());
61           miro.mfd(((nrOfRows-1)/2.0) * circ.radius());
62       }
63   
64       private  void paintOneRow(SPainter miro, int nrOfColumns, SCircle circ) {
65           int i = 1;
66           while ( i <= nrOfColumns ) {
67               paintOnedot(miro, circ);
68               miro.mrt(circ.radius());
69               i = i + 1;
70           }
71           miro.mlt(nrOfColumns* circ.radius());
72       }
73       // made
74       private void paintOnedot(SPainter miro, SCircle circ) {
75           circ.s2();
76           miro.setColor(color);
77           miro.paint(circ);
78           miro.draw(circ);
79           circ.x2();
80           }
81   
82       private static Color getcolor(String x) {
83           if (x.equalsIgnoreCase("red")) {
84               return Color.red;
85           }
86           if (x.equalsIgnoreCase("blue")) {
87               return Color.blue;
88           }
89           if (x.equalsIgnoreCase("green")) {
90               return Color.green;
91           } else{
92                   return Color.black;
93               }
94   
95           }
96   
97   
98   
99       public Number4(){
100          paintTheImage();
101      }
102  
103      public static void main(String[] args){
104          SwingUtilities.invokeLater(new Runnable() {
105              @Override
106              public void run() {
107                  new Number4();
108              }
109          });
110      }
111  }