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       private void interpreter(){
21   
22           //CREATE OBJECTS TO THINK WITH
23           SPainter miro = new SPainter("Dot Thing",400 , 400);
24           miro.setScreenLocation(0,0);
25           SCircle dot = new SCircle(180);
26   
27           // REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
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   
35               } else if (command.equalsIgnoreCase("red")) {
36                   miro.setColor(Color.RED);
37                   miro.paint(dot);
38   
39               }else if (command.equalsIgnoreCase("help")) {
40                   JOptionPane.showMessageDialog(null,"Valid commands are: "
41                           + "RED | BLUE | HELP | EXIT ");
42   
43               }else if (command.equalsIgnoreCase("exit")) {
44                   miro.end();
45                   System.out.println("Thank you for viewing the dots...");
46                   break;
47   
48               }else {
49                   JOptionPane.showMessageDialog(null, "Unrecognizable command: "
50                   + command.toUpperCase());
51   
52               }
53           }
54       }
55       // INFRASTRUCTURE FOR SOME SIMPLE PAINTING
56   
57       public Interpreter1() {
58           interpreter();
59       }
60   
61       public static void main(String[] args) {
62           SwingUtilities.invokeLater(new Runnable() {
63               public void run() {
64                   new Interpreter1();
65   
66               }
67           });
68       }
69   }