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 are: 
5    * 
6    * -BLUE: paint a blue dot 
7    * -RED: paint a red dot 
8    * -GREEN: paint a green dot 
9    * -YELLOW: paint a yellow dot 
10   * -HELP: show a list of the commands in a dialog message box 
11   * -EXIT: terminate the program 
12    */
13   
14   package interpreters;
15   
16   import java.awt.Color;
17   import javax.swing.*;
18   
19   import painter.SPainter;
20   import shapes.SCircle;
21   
22   public class Interpreter2 {
23   
24       private void interpreter() {
25   
26           // Create objects to think with
27           SPainter miro= new SPainter("Dot Thing",400, 400);
28           miro.setScreenLocation(0,0);
29           SCircle dot = new SCircle(180);
30   
31           //Repeatedly take a command from an input dialog box and interpret it
32           while(true) {
33               String command= JOptionPane.showInputDialog(null, "Command?");
34               if (command==null) {command="exit";} // user clicked on Cancel
35               if (command.equalsIgnoreCase("blue")) {
36                   miro.setColor(Color.blue);
37                   miro.paint(dot);
38               } else if (command.equalsIgnoreCase("red")) {
39                   miro.setColor(Color.red);
40                   miro.paint(dot);
41               } else if (command.equalsIgnoreCase("green")) {
42                   miro.setColor(Color.green);
43                   miro.paint(dot);
44               } else if (command.equalsIgnoreCase("yellow")) {
45                   miro.setColor(Color.yellow);
46                   miro.paint(dot);
47               } else if (command.equalsIgnoreCase("help")) {
48                   JOptionPane.showMessageDialog(null, "Valid commands are:" + "RED | BLUE | GREEN | YELLOW| HELP | EXIT |");
49               } else if (command.equalsIgnoreCase("exit")) {
50                   miro.end();
51                   System.out.println("Thank you for viewing the dots ...");
52                   break;
53               } else {
54                   JOptionPane.showMessageDialog(null, "Unrecognizable command: " + command.toUpperCase());
55   
56               }
57           }
58       }
59   
60       // Infrastructure for some simple painting
61   
62       public  Interpreter2() {
63           interpreter();
64       }
65       public static void main (String[] args) {
66           SwingUtilities.invokeLater(new Runnable() {
67               @Override
68               public void run() {
69                   new Interpreter2();
70               }
71           });
72       }
73   }
74   
75