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    * -HELP: show a list of the commands in a dialog message box 
9    * -EXIT: terminate the program 
10    */
11   
12   package interpreters;
13   
14   import java.awt.Color;
15   import javax.swing.*;
16   
17   import painter.SPainter;
18   import shapes.SCircle;
19   
20   public class Interpreter1 {
21   
22       private void interpreter() {
23   
24           // Create objects to think with
25           SPainter miro= new SPainter("Dot Thing",400, 400);
26           miro.setScreenLocation(0,0);
27           SCircle dot = new SCircle(180);
28   
29           //Repeatedly take a command from an input dialog box and interpret it
30           while(true) {
31               String command= JOptionPane.showInputDialog(null, "Command?");
32               if (command==null) {command="exit";} // user clicked on Cancel
33               if (command.equalsIgnoreCase("blue")) {
34                   miro.setColor(Color.blue);
35                   miro.paint(dot);
36               } else if (command.equalsIgnoreCase("red")) {
37                   miro.setColor(Color.red);
38                   miro.paint(dot);
39               } else if (command.equalsIgnoreCase("help")) {
40                   JOptionPane.showMessageDialog(null, "Valid commands are:" + "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: " + command.toUpperCase());
47   
48                   }
49               }
50           }
51   
52           // Infrastructure for some simple painting
53   
54       public  Interpreter1() {
55           interpreter();
56       }
57       public static void main (String[] args) {
58           SwingUtilities.invokeLater(new Runnable() {
59               @Override
60               public void run() {
61                   new Interpreter1();
62               }
63           });
64       }
65       }
66   
67