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 painter.SPainter;
14   import shapes.SCircle;
15   
16   import javax.swing.*;
17   import java.awt.*;
18   
19   public class Interpreter1 {
20   
21       private void interpreter() {
22   
23           //CREATE OBJECTS TO THINK WITH
24           SPainter micro = new SPainter("Dot Thing", 400, 400);
25           micro.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" ;}     //user clicked on cancel
32               if (command.equalsIgnoreCase("blue")) {
33                   micro.setColor(Color.BLUE);
34                   micro.paint(dot);
35               }
36               else if (command.equalsIgnoreCase("red")) {
37                   micro.setColor(Color.RED);
38                   micro.paint(dot);
39               }
40               else if (command.equalsIgnoreCase("help")) {
41                   JOptionPane.showMessageDialog(null, "Valid commands are: "
42                   + "RED | BLUE | HELP | EXIT ");
43               }
44               else if (command.equalsIgnoreCase("exit")) {
45                   micro.end();
46                   System.out.println("Thank you for viewing the dots...");
47                   break;
48               }
49               else {
50                   JOptionPane.showMessageDialog(null, "Unrecognizable command: " +
51                           command.toUpperCase());
52               }
53   
54           }
55       }
56   
57       //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
58   
59       public Interpreter1() {
60           interpreter();
61       }
62       public static void main(String [] args) {
63           SwingUtilities.invokeLater(new Runnable() {
64               @Override
65               public void run() {
66                   new Interpreter1();
67               }
68           });
69       }
70   }
71