In this assignment, you will create a Java program to represent a factory robot controller that

sends commands to multiple robots in an assembly line to create a specific object following a

sequence of predetermined steps. There are three types of robot:

1.

Cutting robot, which cuts parts from raw materials,

2.

Drilling robot, which drills holes in a part, and

3.

Assembly robot, that combines parts together (e.g., putting screws into the holes of one

or more parts)

All robots have the following information and actions:

1.

Type (i.e. Cutting, Drilling or Assembly)

2.

Manufacturer (Cutting and Drilling robots are made by ReginaMachines and the

assembly robot is made by SK Robotics)

3.

Serial number (a unique 12-digit number)

4.

A constructor with 3 parameters that will initialize the robot to the given values

5.

An action fetchParts() that will fetch the appropriate part(s) or raw materials from

storage

6.

An action doTask() that performs the required task (of cutting, drilling or assembling)

7.

An action storeParts() that will store the finished part or product back to storage

Note that there can be more than one instance of a cutting robot (e.g. there could be 6 cutting

robots cutting one part each at the same time, so you will end up with 6 identical parts).

Similarly, there can be more than one instance of a drilling robot (e.g. there can be 3 robots

drilling holes in 3 of the parts at the same time, and then all 3 robots do the drilling again on the

another 3 parts so as to make 6 drilled parts), but there can only be one assembly robot

(because all the parts will come together to make only one product).

Design the system using design pattern(s) that you have learnt in class (you may use more than

one design pattern at the same time). Note that in your design you

must

be able to easily add

new robot classes in the future, and do

not

repeat the same information in multiple objects of

the same class

In your main program file, create

two

instances of a cutting robot,

two

instances of a drilling

robot and

one

instance of an assembly robot. You may initialize the robot to any meaningful

initial values of your choice. Use the robot controller to send instructions to each robot to cut

parts, drill holes and assemble the product. Assume that it takes

four

parts with holes in them

to make one final product. Note that for each step the robot must first fetch the raw materials

or parts from storage, and then store the finished part or product back to storage when that

step is completed.

Print some meaningful messages to the screen to demonstrate that that robot controller is

carrying out the process correctly. Please include comments to explain which design pattern(s)

you are using and what are the classes in that design pattern.