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 commands in a dialog message box 
8    -Exit: terminate the program 
9     */
10   
11   package interpreters;
12   import java.awt.Color;
13   import javax.swing.JOptionPane;
14   import javax.swing.SwingUtilities;
15   import painter.SPainter;
16   import shapes.SCircle;
17   
18   public class Interpreter1 {
19   
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 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("help") ) {
38                   JOptionPane.showMessageDialog(null, "Valid commands are: " + "RED | BLUE | HELP | EXIT ");
39               } else if ( command.equalsIgnoreCase("exit") ) {
40                   miro.end();
41                   System.out.println("Thank you for viewing the dots ...");
42                   break;
43               } else {
44                   JOptionPane.showMessageDialog(null, "Unrecognizable Command: " + command.toUpperCase());
45               }
46           }
47       }
48       public Interpreter1() {
49           interpreter();
50       }
51   
52       public static void main(String[] args) {
53         SwingUtilities.invokeLater(new Runnable() {
54             public void run() {
55                 new Interpreter1();
56             }
57         });
58       }
59   }
60