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 Interpreter2 {
20   
21       private void interpreter() {
22   
23           // Create object 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 ) { command = "exit"; }
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("green")) {
39                   miro.setColor(Color.GREEN);
40                   miro.paint(dot);
41               } else if ( command.equalsIgnoreCase("yellow")) {
42                   miro.setColor(Color.YELLOW);
43                   miro.paint(dot);
44               } else if ( command.equalsIgnoreCase("help")) {
45                   JOptionPane.showMessageDialog(null , "Valid comments are: " + "Red | Blue | Green | Yellow | 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 : " + command.toUpperCase());
52               }
53           }
54       }
55   
56       // Infrastructure for some simple painting
57   
58       public Interpreter2() {
59           interpreter();
60       }
61   
62       public static void main(String[] args) {
63           SwingUtilities.invokeLater(new Runnable() {
64               @Override
65               public void run() {
66                   new Interpreter2();
67               }
68           });
69       }
70   }
71