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 java.awt.Color; 14 import javax.swing.JOptionPane; 15 import javax.swing.SwingUtilities; 16 import painter.SPainter; 17 import shapes.SCircle; 18 19 20 import java.awt.*; 21 import java.sql.SQLOutput; 22 23 public class Interpreter1 { 24 25 private void interpreter(){ 26 27 //CREATE OBJECTS TO THINK WITH 28 SPainter miro= new SPainter("Dot thing", 400, 400); 29 miro.setScreenLocation(0,0); 30 SCircle dot= new SCircle(180); 31 32 //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT 33 while (true){ 34 String command= JOptionPane.showInputDialog(null, "command?"); 35 if (command==null) {command="exit";} // user clicked on cancel 36 if (command.equalsIgnoreCase("blue")) { 37 miro.setColor(Color.BLUE); 38 miro.paint(dot); 39 } else if (command.equalsIgnoreCase("Red")) { 40 miro.setColor(Color.RED); 41 miro.paint(dot); 42 } else if (command.equalsIgnoreCase("help")) { 43 JOptionPane.showMessageDialog(null, "Valid Commands are:" 44 + "RED| BLUE| HELP| EXIT"); 45 } else if (command.equalsIgnoreCase("exit")) { 46 miro.end(); 47 System.out.println("Thank you for viewing the dots..."); 48 break; 49 50 } else { 51 JOptionPane.showMessageDialog(null, "Unrecognizable command:" 52 + command.toUpperCase()); 53 54 } 55 } 56 } 57 // INFRASTRUCTURE FOR SOME SIMPLE PAINTING 58 public Interpreter1() { 59 interpreter(); 60 61 } 62 public static void main(String []args) { 63 SwingUtilities.invokeLater(new Runnable() { 64 public void run() { 65 new Interpreter1(); 66 } 67 }); 68 } 69 } 70 71 72 73