1    /* 
2     * This interpreter is intended to paint different colored dots in a window 
3     * 
4     * The commands that the interpreter can recognize and respond to are: 
5     * - BLUE: paint a blue dot 
6     * - RED: paint a red dot 
7     * - GREEN: paint a green dot 
8     * - YELLOW: paint a yellow dot 
9     * - HELP: show a list of the commands in a dialog message box 
10    * - EXIT: terminate the program 
11    */
12   
13   package interpreters;
14   
15   import painter.SPainter;
16   import shapes.SCircle;
17   
18   import javax.swing.*;
19   import java.awt.*;
20   
21   public class Interpreters2 {
22       private void interpreter() {
23           //CREATE OBJECTS TO THINK WITH
24           SPainter miro = new SPainter("Dot Thing", 400, 400);
25           miro.setScreenLocation(0, 0);
26           SCircle dot = new SCircle(180);
27   
28           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
29           while (true) {
30               String command = JOptionPane.showInputDialog(null, "Command?");
31               if (command == null) {
32                   command = "exit";
33               } // user clicked on cancel
34               if (command.equalsIgnoreCase("blue")) {
35                   miro.setColor(Color.BLUE);
36                   miro.paint(dot);
37               } else if (command.equalsIgnoreCase("red")) {
38                   miro.setColor(Color.RED);
39                   miro.paint(dot);
40               } else if (command.equalsIgnoreCase("yellow")) {
41                   miro.setColor(Color.YELLOW);
42                   miro.paint(dot);
43               } else if (command.equalsIgnoreCase("green")) {
44                   miro.setColor(Color.green);
45                   miro.paint(dot);
46               } else if (command.equalsIgnoreCase("help")) {
47                   JOptionPane.showMessageDialog(null, "Valid Commands are:" + "RED | BLUE | YELLOW | GREEN | HELP | EXIT");
48               } else if (command.equalsIgnoreCase("exit")) {
49                   miro.end();
50                   System.out.println("Thank you for viewing the dots...");
51                   break;
52               } else {
53                   JOptionPane.showMessageDialog(null, "Unrecognizable command: "
54                           + command.toUpperCase());
55               }
56           }
57       }
58   
59       // INFRASTRUCTURE FOR SOME SIMPLE PAINTING
60       public Interpreters2() {
61           interpreter();
62       }
63   
64       public static void main(String[] args) {
65           SwingUtilities.invokeLater(new Runnable() {
66               @Override
67               public void run() {
68                   new Interpreters2();
69               }
70           });
71   
72       }
73   }
74