Interpreter3.java
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 Interpreter3 {
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 form an Input Dialog box and Interpret it
27           while (true) {
28               String command = JOptionPane.showInputDialog(null, "Command?");
29               if (command == null) {
30                   command = "exit";
31               } //user clicked on Cancel
32               if (command.equalsIgnoreCase("blue")) {
33                   miro.setColor(Color.BLUE);
34                   miro.paint(dot);
35               } else if (command.equalsIgnoreCase("red")) {
36                   miro.setColor(Color.RED);
37                   miro.paint(dot);
38               } else if(command.equalsIgnoreCase("green")){
39                   miro.setColor(Color.GREEN);
40                   miro.paint(dot);
41               } else if(command.equalsIgnoreCase("yellow")){
42                   miro.setColor(Color.YELLOW);
43                   miro.paint(dot);
44               } else if(command.equalsIgnoreCase("random")){
45                   miro.setColor(randomColor());
46                   miro.paint(dot);
47               } else if (command.equalsIgnoreCase("help")) {
48                   JOptionPane.showMessageDialog(null, "Valid commands are:" + "RED | BLUE | GREEN | YELLOW | RANDOM | HELP | EXIT");
49               } else if (command.equalsIgnoreCase("exit")) {
50                   miro.end();
51                   System.out.println("Thanks You For Viewing the Dots....");
52                   break;
53               } else {
54                   JOptionPane.showMessageDialog(null, "Unrecognizable command:" + command.toUpperCase());
55               }
56           }
57       }
58   
59       private Color randomColor() {
60           int rv =(int)(Math.random()*256);
61           int gv =(int)(Math.random()*256);
62           int bv =(int)(Math.random()*256);
63           return new Color(rv,gv,bv);
64   
65       }
66   
67       public Interpreter3() {
68           Interpreter();
69       }
70   
71       public static void main(String[] args) {
72           SwingUtilities.invokeLater(new Runnable() {
73               @Override
74               public void run() {
75                   new Interpreter3();
76               }
77           });
78   
79       }
80   }
81