@@ -0,0 +1,231 @@
+public class VacuumRobot%0A%7B%0A    public static final char UP = '%5E';%0A    public static final char DOWN = 'v';%0A    public static final char RIGHT = '%3C';%0A    public static final char LEFT = '%3E';%0A%0A    public VacuumRobot ()%0A    %7B%0A%0A    %7D%0A%7D

Update VacuumRobot.java