Interpreter2.java
/* 
 * This interpreter is intended to paint different colored data in a window. 
 * 
 * The commands that the interpreters can recognize and respond to are: 
 * - BLUE: paint a blue dot 
 * - RED: paint a red dot 
 * - GREEN: paint a green dot 
 * - YELLOW: paint a yellow dot 
 * - HELP: show a list of the commands in a dialog massages box 
 * - EXIT: terminate the program 
 */

package interpreters;

import javax.swing.*;

import painter.SPainter;
import shapes.SCircle;

import java.awt.*;

public class Interpreter2 {
    private void interpreter () {
        //CREATE OBJECTS TO THINK WITH
        SPainter miro = new SPainter ("Dot Thing",400,400);
        miro.setScreenLocation(0,0);
        SCircle dot = new SCircle(180);
        //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
        while (true) {
            String command = JOptionPane.showInputDialog(null," What would you like to command me?");
            if ( command == null) {command = "exit";} // user clicked on Cancel
            if ( command.equalsIgnoreCase("blue")) {
                miro.setColor(Color.BLUE);
                miro.paint(dot);
            } else if ( command.equalsIgnoreCase("red")) {
                miro.setColor(Color.RED);
                miro.paint(dot);
            } else if ( command.equalsIgnoreCase("green")) {
                miro.setColor(Color.GREEN);
                miro.paint(dot);
            } else if ( command.equalsIgnoreCase("yellow")) {
                miro.setColor(Color.YELLOW);
                miro.paint(dot);
            } else if ( command.equalsIgnoreCase("help")) {
                JOptionPane.showMessageDialog(null,"Valid commands are: "
                        + " RED | BLUE | GREEN | YELLOW | HELP | EXIT ");
            } else if ( command.equalsIgnoreCase("exit")) {
                miro.end();
                System.out.println("Thank you for viewing the dots ...");
                break;
            } else {
                JOptionPane.showMessageDialog(null,"Unrecognizable command: "
                        + command.toUpperCase());

            }
        }
    }

    // INFRASTRUCTURE FOR SOME SIMPLE PAINTING

    public Interpreter2() {
        interpreter();
    }

    public static void main( String [] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new Interpreter2();
            }
        });
    }
}