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 * -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 java.awt.Color; 16 import javax.swing.JOptionPane; 17 import javax.swing.SwingUtilities; 18 import painter.SPainter; 19 import shapes.SCircle; 20 21 22 import java.awt.*; 23 import java.sql.SQLOutput; 24 25 public class Interpreter2 { 26 27 private void interpreter(){ 28 29 //CREATE OBJECTS TO THINK WITH 30 SPainter miro= new SPainter("Dot thing", 400, 400); 31 miro.setScreenLocation(0,0); 32 SCircle dot= new SCircle(180); 33 34 //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT 35 while (true){ 36 String command= JOptionPane.showInputDialog(null, "command?"); 37 if (command==null) {command="exit";} // user clicked on cancel 38 if (command.equalsIgnoreCase("blue")) { 39 miro.setColor(Color.BLUE); 40 miro.paint(dot); 41 } else if (command.equalsIgnoreCase("Red")) { 42 miro.setColor(Color.RED); 43 miro.paint(dot); 44 }else if (command.equalsIgnoreCase("Green")) { 45 miro.setColor(Color.GREEN); 46 miro.paint(dot); 47 } else if (command.equalsIgnoreCase("Yellow")) { 48 miro.setColor(Color.YELLOW); 49 miro.paint(dot); 50 51 52 } else if (command.equalsIgnoreCase("help")) { 53 JOptionPane.showMessageDialog(null, "Valid Commands are:" 54 + "RED| BLUE|GREEN|YELLOW| HELP| EXIT"); 55 56 } else if (command.equalsIgnoreCase("exit")) { 57 miro.end(); 58 System.out.println("Thank you for viewing the dots..."); 59 break; 60 61 } else { 62 JOptionPane.showMessageDialog(null, "Unrecognizable command:" 63 + command.toUpperCase()); 64 65 } 66 } 67 } 68 // INFRASTRUCTURE FOR SOME SIMPLE PAINTING 69 public Interpreter2() { 70 interpreter(); 71 72 } 73 public static void main(String []args) { 74 SwingUtilities.invokeLater(new Runnable() { 75 public void run() { 76 new Interpreter2(); 77 } 78 }); 79 } 80 }