1 /* 2 *This interpreter is inteded 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 painter.SPainter; 16 import shapes.SCircle; 17 18 import javax.swing.*; 19 import java.awt.*; 20 21 public class Interpreter2 { 22 private void interpreter() { 23 //CREATE OBJECTS TO THINK WITH 24 SPainter miro = new SPainter("Dot Thing", 400, 400); 25 miro.setScreenLocation(0,0); 26 SCircle dot = new SCircle(180); 27 28 //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT 29 while (true) { 30 String command = JOptionPane.showInputDialog(null,"command?"); 31 if (command == null) {command="exit";} //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("help")) { 45 JOptionPane.showMessageDialog(null, "Valid commands are: " + "RED | BLUE | GREEN | YELLOW | HELP | EXIT "); 46 } else if (command.equalsIgnoreCase("exit")) { 47 miro.end(); 48 System.out.println("Thank you for viewing the dots ..."); 49 break; 50 } else { 51 JOptionPane.showMessageDialog(null, "Unrecognizable command" + command.toUpperCase()); 52 } 53 } 54 } 55 56 // INFRASTRUCTURE FOR SOME SIMPLE PAINTING 57 58 public Interpreter2() { 59 interpreter(); 60 } 61 62 public static void main(String[] args) { 63 SwingUtilities.invokeLater(new Runnable() { 64 public void run() { 65 new Interpreter2(); 66 } 67 }); 68 } 69 } 70