1    /* 
2    *This interpreter is intended to paint different colored dots in a window 
3    * The commands that the interpreter can recognize and respond to are: 
4    * - BLUE: paint a blue dot 
5    * - RED: paint a red dot 
6    * - HELP: show a list of the commands in a dialog message box 
7    * - EXIT: terminate the program 
8     */
9    package interpreters;
10   
11   import java.awt.Color;
12   import javax.swing.JOptionPane;
13   import javax.swing.SwingUtilities;
14   import painter.SPainter;
15   import shapes.SCircle;
16   
17   public class Interpreter1 {
18       private void interpreter() {
19   
20           //CREATE OBJECTS TO THINK WITH
21           SPainter micro = new SPainter("Dot Thing",400,400);
22           micro.setScreenLocation(0,0);
23           SCircle dot = new SCircle(180);
24   
25           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
26           while ( true ) {
27               String command = JOptionPane.showInputDialog(null,"Command?");
28               if ( command == null ) { command = "exit"; } // user clicked on Cancel
29               if ( command.equalsIgnoreCase("blue") ) {
30                   micro.setColor(Color.BLUE);
31                   micro.paint(dot);
32               } else if ( command.equalsIgnoreCase("red") ) {
33                   micro.setColor(Color.RED);
34                   micro.paint(dot);
35               } else if ( command.equalsIgnoreCase("help") ) {
36                       JOptionPane.showMessageDialog(null,"Valid commands are: "
37                               + "RED | BLUE | HELP | EXIT ");
38               } else if ( command.equalsIgnoreCase("exit") ) {
39                   micro.end();
40                   System.out.println("Thank you for viewing the dots...");
41                   break;
42               } else {
43                   JOptionPane.showMessageDialog(null, "Unrecognizable command: "
44                           + command.toUpperCase());
45           }
46       }
47   
48   }
49   
50   //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
51   
52   public Interpreter1() {
53       interpreter();
54       }
55   
56   public static void main(String[] args) {
57           SwingUtilities.invokeLater(new Runnable() {
58               public void run() {
59                   new Interpreter1();
60               }
61           });
62   }
63   }
64   
65