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     - HELP: show a list of the commands in a dialog message box 
8     - EXIT: terminate the program 
9     */
10   
11   package interpreters;
12   
13   import java.awt.Color;
14   import javax.swing.JOptionPane;
15   import javax.swing.SwingUtilities;
16   import painter.SPainter;
17   import shapes.SCircle;
18   
19   public class Interpreter1 {
20   
21       private void interpreter () {
22   
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           //REPEATED;Y 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){ command = "exit";} //user clicked Cancel
32               if (command.equalsIgnoreCase("blue")) {
33                   miro.setColor(Color.BLUE);
34                   miro.paint(dot);
35               } else if (command.equalsIgnoreCase("red")) {
36                   miro.setColor(Color.RED);
37                   miro.paint(dot);
38               } else if (command.equalsIgnoreCase("help")) {
39                   JOptionPane.showMessageDialog(null, "Valid commands area: "
40                           + "RED | BLUE | HELP | EXIT ");
41               } else if (command.equalsIgnoreCase("exit")) {
42                   miro.end();
43                   System.out.println("Thank you for viewing the dots ... ");
44                   break;
45               } else {
46                   JOptionPane.showMessageDialog(null, "Unrecognizable command: ");
47               }
48               }
49           }
50   
51           //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
52   
53           public Interpreter1() {
54               interpreter();
55           }
56   
57           public static void main(String[] args) {
58               SwingUtilities.invokeLater(new Runnable() {
59                   public void run() {
60                       new Interpreter1();
61                   }
62               });
63       }
64   }
65