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     * -Green: paint a green dot 
8     * -Yellow: paint a yellow dot 
9     * -HELP: show a list of the commands in a dialog message box 
10    * -EXIT: terminate the program 
11    */
12   
13   package interpreters;
14   
15   import java.awt.Color;
16   import javax.swing.JOptionPane;
17   import javax.swing.SwingUtilities;
18   import painter.SPainter;
19   import shapes.SCircle;
20   
21   
22   import java.awt.*;
23   import java.sql.SQLOutput;
24   
25   public class Interpreter2 {
26   
27       private void interpreter(){
28   
29           //CREATE OBJECTS TO THINK WITH
30           SPainter miro= new SPainter("Dot thing", 400, 400);
31           miro.setScreenLocation(0,0);
32           SCircle dot= new SCircle(180);
33   
34           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
35           while (true){
36               String command= JOptionPane.showInputDialog(null, "command?");
37               if (command==null) {command="exit";} // user clicked on cancel
38               if (command.equalsIgnoreCase("blue")) {
39                   miro.setColor(Color.BLUE);
40                   miro.paint(dot);
41               } else if (command.equalsIgnoreCase("Red")) {
42                   miro.setColor(Color.RED);
43                   miro.paint(dot);
44               }else if (command.equalsIgnoreCase("Green")) {
45                   miro.setColor(Color.GREEN);
46                   miro.paint(dot);
47               } else if (command.equalsIgnoreCase("Yellow")) {
48                   miro.setColor(Color.YELLOW);
49                   miro.paint(dot);
50   
51   
52               } else if (command.equalsIgnoreCase("help")) {
53                   JOptionPane.showMessageDialog(null, "Valid Commands are:"
54                           + "RED| BLUE|GREEN|YELLOW| HELP| EXIT");
55   
56               } else if (command.equalsIgnoreCase("exit")) {
57                   miro.end();
58                   System.out.println("Thank you for viewing the dots...");
59                   break;
60   
61               } else {
62                   JOptionPane.showMessageDialog(null, "Unrecognizable command:"
63                           + command.toUpperCase());
64   
65               }
66           }
67       }
68       //  INFRASTRUCTURE FOR SOME SIMPLE PAINTING
69       public Interpreter2() {
70           interpreter();
71   
72       }
73       public static void main(String []args) {
74           SwingUtilities.invokeLater(new Runnable() {
75               public void run() {
76                   new Interpreter2();
77               }
78           });
79       }
80   }
81