1    /* 
2    this interpreter is intended to paint different colored dots in a window 
3     
4    commands 
5        BLUE: paint a blue dot 
6        RED:Paint a red dot 
7        HELP: show a list of commands 
8        EXIT: terminate 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       private void interpreter() {
20           // Create objects to think with
21           SPainter miro = new SPainter("Dot Thing",400,400);
22           miro.setScreenLocation(0,0);
23           SCircle dot = new SCircle(180);
24   
25           //repetedly take a command form an input 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                   miro.setColor(Color.BLUE);
31                   miro.paint(dot);
32               } else if ( command.equalsIgnoreCase("red")){
33                   miro.setColor(Color.red);
34                   miro.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                   miro.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
51       public Interpreter1(){
52           interpreter();
53       }
54       public static void main(String[] args){
55           SwingUtilities.invokeLater(new Runnable(){
56               public void run(){
57                   new Interpreter1();
58               }
59           });
60       }
61   }
62