Robots Exercise #4

Add a new Java file e.g. Exercise4.java, or whatever to the
.exercises package.
Create the following objects:
- A City with 25 streets and avenues
- a Robot in the city, starting on street 3, avenue 5, 
  facing WEST
Test your application so far and make sure everything looks 
as it should.
Add the following static methods:

(feel free to make use of methods that were written in 
previous exercises)

gotoStreet(): moves the robot to a specific street number
- arguments = a robot, a street number
- returns nothing
- make sure it works whether your robot is to the north or 
  south of the desired street number, and regardless of the 
  robot's starting direction
Test the gotoStreet() method: 
a) send the robot from its starting position to street 10
gotoStreet(yourRobot, 10); 
(no other statements except for the city and robot 
constructors: this should automatically turn and move your 
robot to the correct location)
b) send the robot from its starting position to street 1
gotoStreet(yourRobot, 1);   
(no other statements except for the city and robot 
constructors: this should automatically turn and move your 
robot to the correct location)

gotoAvenue(): moves the robot to a specific avenue number
- arguments = a robot, an avenue number
- returns nothing
- make sure it works whether your robot is to the east or 
west of the   desired avenue number, and regardless of the
robot's starting direction
Test the gotoAvenue() method: 
a) send the robot from its starting position to avenue 10
gotoAvenue(yourRobot, 10); 
(no other statements except for the city and robot 
constructors: this should automatically turn and move your 
robot to the correct location)
b) send the robot from its starting position to avenue 1
gotoAvenue(yourRobot, 1);   
(no other statements except for the city and robot 
constructors: this should automatically turn and move your 
robot to the correct location)

gotoIntersection(): moves the robot to a specific intersection
(street/avenue)
- arguments: a robot, an avenue number, a street number
- returns nothing
- this method should use the methods you've already written
to move the robot to a specific street and avenue 
Test your gotoIntersection() method:
gotoIntersection(10, 10);
gotoIntersection(1, 1);