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 commands in a dialog message box 8 * -EXIT: terminate the program 9 */ 10 11 package interpreters; 12 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 21 private void interpreter() { 22 //CREATE OBJECTS TO THINK WITH 23 SPainter miro = new SPainter("Dot Thing", 400,400); 24 miro.setScreenLocation(0,0); 25 SCircle dot = new SCircle(180); 26 27 //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPET IT 28 while (true) { 29 String command = JOptionPane.showInputDialog(null,"Command?"); 30 if ( command == null ) {command = "exit"; } //user clicked on Cancel 31 if ( command.equalsIgnoreCase("blue") ) { 32 miro.setColor(Color.BLUE); 33 miro.paint(dot); 34 } else if ( command.equalsIgnoreCase("red") ) { 35 miro.setColor(Color.RED); 36 miro.paint(dot); 37 } else if ( command.equalsIgnoreCase("help") ) { 38 JOptionPane.showMessageDialog(null, "Validc command are: " 39 + "RED | BLUE | HELP | EXIT "); 40 } else if ( command.equalsIgnoreCase("exit") ) { 41 miro.end(); 42 System.out.println("Thank you for viewing the dots ..."); 43 break; 44 } else { 45 JOptionPane.showMessageDialog(null, "Unrecognizable command: " 46 + command.toUpperCase()); 47 } 48 } 49 50 } 51 52 // INFRASTRUCTURE FOR SOME SIMPLE PAINTING 53 54 public Interpreter1() { 55 interpreter(); 56 } 57 58 public static void main(String[] args) { 59 SwingUtilities.invokeLater(new Runnable() { 60 public void run() { 61 new Interpreter1(); 62 } 63 }); 64 } 65 } 66