1    /* 
2     *This interpreter will paint different color dots 
3     * Commands the interpreter can recognize 
4     * -Green: paint the green dot 
5     * - Yellow: paint the yellow dot 
6     * - BLUE: paint the blue dot 
7     * - Red: paint the red dot 
8     * - HELP: show alist of the commands in a dialog message box 
9     * - EXIT: terminate the program 
10    */
11   package interpreters;
12   
13   import painter.SPainter;
14   import shapes.SCircle;
15   
16   import javax.swing.*;
17   import java.awt.*;
18   
19   public class Interpreter2 {
20       private void interpreter() {
21           //CREATE OBJECTS TO THINK WITH
22   
23           SPainter miro = new SPainter("Dot Thing", 400, 400);
24           miro.setScreenLocation(0, 0);
25           SCircle dot = new SCircle(180);
26           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
27   
28           while (true) {
29               String command = JOptionPane.showInputDialog(null, "Command?");
30               if (command == null) { command = "exit"; }//user clicked on Cancel
31               if (command.equalsIgnoreCase("blue")) {
32                   miro.setColor(Color.BLUE);
33                   miro.paint(dot);
34               } else if (command.equalsIgnoreCase("red")) {
35                   miro.setColor(Color.RED);
36                   miro.paint(dot);
37               }else if (command.equalsIgnoreCase("green")) {
38                   miro.setColor(Color.GREEN);
39                   miro.paint(dot);
40               }else if (command.equalsIgnoreCase("yellow")) {
41                   miro.setColor(Color.YELLOW);
42                   miro.paint(dot);
43               } else if (command.equalsIgnoreCase("help")) {
44                   JOptionPane.showMessageDialog(null, "Valid commands are: "
45                           + "RED | BLUE | YELLOW | GREEN | HELP | EXIT ");
46               } else if (command.equalsIgnoreCase("exit")) {
47                   miro.end();
48                   System.out.println("Thank you for viewing the dots ...");
49                   break;
50               } else {
51                   JOptionPane.showMessageDialog(null, "Unrecognizable command: "
52                           + command.toUpperCase());
53               }
54           }
55       }
56       //Infrastructure for some simple painting
57       public Interpreter2() {
58           interpreter();
59       }
60       public static void main(String[] args) {
61           SwingUtilities.invokeLater(new Runnable() {
62               @Override
63               public void run() {
64                   new Interpreter2();
65               }
66           });
67       }
68   }
69