1    /* 
2    This interpreter is intended to paint different colored dots in a window. 
3     
4    *The commands that the interpreter cvan 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   
12   package interpreters;
13   import java.awt.Color;
14   import javax.swing.JOptionPane;
15   import javax.swing.SwingUtilities;
16   import painter.SPainter;
17   import shapes.SCircle;
18   
19   public class Interpreter1 {
20       private void interpreter() {
21           //CREATE OBJECTS TO THINK WITH
22           SPainter miro = new SPainter("Dot Thing", 400,400);
23           miro.setScreenLocation(0,0);
24           SCircle dot = new SCircle(180);
25   
26           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
27           while (true) {
28               String command = JOptionPane.showInputDialog(null, "Command?");
29               if (command == null) { command = "exit"; } //user clicked on Cancel
30               if( command.equalsIgnoreCase("blue") ) {
31                   miro.setColor(Color.blue);
32                   miro.paint(dot);
33               }else if (command.equalsIgnoreCase("red")) {
34                   miro.setColor(Color.red);
35                   miro.paint(dot);
36               }else if (command.equalsIgnoreCase("help")) {
37                   JOptionPane.showMessageDialog(null, "Valid commands are: " + "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: " + command.toUpperCase());
44               }
45           }
46       }
47       //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
48       public Interpreter1(){
49       interpreter();
50   }
51   
52   public static void main(String[] args) {
53   SwingUtilities.invokeLater(new Runnable(){
54   public void run() {
55   new Interpreter1();
56   }
57   });
58   }
59   }
60   
61   
62   
63   
64   
65