CHC6186代写、Java程序设计代做

日期：2024-04-25 09:42

CHC6186 Advanced Object-Oriented Programming

Coursework

For this coursework, you will produce in Java two versions of the game Numberle. One version will

have a Graphical User Interface (GUI) and the other version will have a command-line interface (CLI).

The GUI version will be constructed according to the principles of Model View Controller, and the CLI

version will use the same model. The two versions will from now on be called the GUI version and

the CLI version.

Learning Outcomes

This coursework will assess the following learning outcomes.

● Create a software artefact by applying the methodologies of advanced object-oriented

programming to a requirements specification

● Consult on-line code libraries to find the classes and methods most appropriate for solving a

problem

● Create appropriate documentation that clearly communicates the intended behaviour of a

program

This coursework is worth 50% of your module mark; the remaining 50% comes from your exam.

How to Play Numberle

Numberle is a mathematical equation guessing game where players must accurately guess a randomly

generated equation within six tries.1 Players enter their own equation, aiming to match the target

equation. In total, players have 6 attempts to guess the target equation. When calculating, players

can use numbers (0-9) and arithmetic signs (+ - * / =).

For this coursework, the length of the mathematical equation is fixed at 7 characters. (However, the

character number of the link numberle.org is originally 8, but you can change it to 7 characters by

clicking the top left setting button) In each attempt, the player enters their own correct equation to

find out what numbers and arithmetic signs are in the equation. If the number or sign is in the

equation, but in the wrong place, it will be highlighted in orange. If it is in the exact place, then it will

be highlighted in green. If there is no number or sign in the equation at all, the color will be gray. In

this coursework, arithmetic expressions are

evaluated using BODMAS. BODMAS stands for

"Brackets, Orders (exponents), Division and

Multiplication, Addition and Subtraction." This

means that operations within brackets are

performed first, followed by any exponents, then

division and multiplication (from left to right), and

finally addition and subtraction (from left to right).

The website is implemented in Javascript. Any

attempt to submit Javascript will receive a mark

of zero and any Java based on the website’s

Javascript will be treated as plagiarism in the

normal way. The website colours may be used.

1

https://numberle.org

Functional Requirements

For greater clarity, the description of the GUI and the CLI versions of the game can be summarised in

the following list of functional requirements.

FR1 For the GUI version, a confirmatory message or a message box should be displayed to

indicate whether the player has won (guessed the mathematical equation) or lost (run out

of guesses), even though the game status is clear from the tile coloring on the last filled

row.

FR2 For the CLI version, a confirmatory message indicating the player has won or lost is

required.

FR3 The behaviour of the program shall be controlled by three flags:

? One flag should, if set, cause an error message to be displayed if the equation is not

valid; this will not then count as one of the tries.

? Another flag should, if set, display the target equation for testing purposes.

? A third flag should, if set, cause the equation to be randomly selected. If unset, the

equation will be fixed.

FR4 Both GUI and CLI versions of the program should allow players to input their guesses for

the mathematical equation, consisting of numbers and arithmetic signs.

FR5 The Model should load a list of valid equations from a fixed location (from one provided

file equations.txt). This list will serve as potential guesses for the player.

FR6 The GUI should display a keyboard in which digits or signs are displayed in dark grey if it

has been revealed that they do not occur in the mathematical equation, green if a correct

location of a digit or a sign has been found, and orange if the digit or sign has been

guessed but never at the correct location. See below for an example; this functionality is

like the GUI shown on the website.

The CLI should indicate available digits or signs by listing them in four separate categories

in a certain order.

FR7 The GUI version should have a button to ask for a new game which will be enabled only

after the first valid guess has been made. This is not required for the CLI version.

Non-functional Requirements

The following non-functional requirements also apply

NFR1 The GUI version and CLI version should be two separate programs ie there should be two

files each with a main method in them and which file is run determines which version

activated.

NFR2 The GUI version must be constructed according to the principles of MVC, as restated

below. Because of this requirement, code that belongs in the View but is placed in the

Model will usually not be counted towards the marks for the View. Similar rules will apply

for other misplaced code.

NFR3 The CLI version will use the Model part of the GUI version directly without using the View

or Controller; nor should it define a new view or controller.

NFR4 The code must be documented with asserts, unit testing, class diagram, comments as

described below.

NFR5 The code must be of good quality as described in the marking scheme below.

NFR6 The flags mentioned in FR3 should be in the Model. It is not necessary for them to be

changeable at run time.

NFR7 The model should also have a constant indicating the number of allowable guesses.

Marking Scheme (See rubric as well).

Model. This should have an interface designed to be convenient for the Controller, View

and JUnit class to use with no superfluous public methods, no references to two classes

and contain no GUI code. It may consist of several classes but there must be a class called

Model or similar that provides the interface and this class should extend Observable. File

reading should also be done in the Model. A high mark will be earned for a Model that

implements all the required functionality and respects all these constraints. A pass mark

will be earned for a Model that implements only some of the required functionality or fails

to respect these constraints.

20%

Controller. This should forward only valid requests to the Model, querying the Model if

necessary to find out if the request is valid, and must also enable / disable buttons as

described above in the functional requirements. It must have no GUI code, though it may

send messages to the View. A high mark will be given to a controller that respects all these

constraints and a pass mark will be given to a controller that respects only some of them

10%

View of GUI version using the Swing framework. It should implement Observer and

therefore have an update method that is called when the Model changes. This will be

marked according to how many of the functional requirements have been met. A high

mark will be given to a view that implements all the requirements and a pass mark will be

given to a view that implements only some of them.

10%

CLI version of the program, using the Model. 10%

Specification of Model with asserts. This should include invariants for the class as well as

pre and post conditions for each public method in the model. This will be marked

according to how many of the relevant conditions are included and whether the ones that

are included are correct. Partial credit will be available for describing them in English. A

high mark will be given to a specification that includes all the relevant constraints. A pass

mark will be given to a specification that includes only a few of them.

10%

Unit testing of the Model in JUnit. There should be three tests, significantly different from

each other. You should explain in comments the scenario ie the situation you are testing

for. You should use write (and then call) methods for the Model that set it into the state

desired for the test. It should be easy to see what state the Model is being set to by

reading the code for the unit tests. A high mark will be given to significantly different tests

10%

that are easy for the marker to interpret. A pass mark will be given to unoriginal second or

third tests or to three tests that are difficult to understand. Your Model may use a

separate Board class but the testing should be of the Model class and the specification

should be applied to that class also.

Use of the code quality practices described in Lecture 1, plus the additional practices of

light relevant commenting and correct formatting. Short elegant programs are preferred,

and code smells are to be avoided. Note that high marks for this category will only be

possible if the GUI fulfils most of the requirements. A high mark will be awarded if all the

practices are observed and a pass mark will be awarded if only some of them are.

10%

Class diagram. This should show how the Model, View and Controller are related to each

other, as well as how they interact with library classes such as Observable. Simplicity and

clarity will be reward. It will be marked according to its accuracy as a representation of the

program. A high mark will be awarded for an accurate diagram and a pass mark will be

awarded for a less accurate diagram.

10%

Video presentation that shows you displaying the code and using the program. It will be

marked according to timing, presentation and how well you show that you have met the

FRs and NFRs in both versions.

10%

Submission

Requirements

1. Your submission should contain three files (.pdf, .zip, and .mp4).

2. The first file is a .pdf document with screenshots of the implementation (Java code), testing,

and design with a class diagram.

3. The second file is a .zip file with the Java project.

4. The third file is a .mp4 video that is less than 1 GB. If the video is not viewable, it will not

receive marks. The video must be a maximum of five minutes long during which you must

display most of the relevant functionality and refer to your code. Any recording software can

be used so long as it captures your screen and your voice.

5. Additionally, you are required to regularly upload your code to GitHub as per the university

counterpart's requirement. Provide the GitHub repository link in the PDF document.

6. The PDF document is the version that will be marked, but the .zip and .mp4 are requested so

that we may run the code.

File Naming Convention

You must save the files with the following names:

? {YourStudentNumber}-coursework.pdf

? {YourStudentNumber}-coursework.zip

? {YourStudentNumber}-coursework.mp4

For example:

? 202007081314-coursework.pdf

? 202007081314-coursework.zip

? 202107081314-coursework.mp4

Submission Deadline:

You must upload from the student website (student.zy.cdut.edu.cn) before 17:00, May 6th

(Monday).

Some students will be selected to give a Zoom presentation, after the exam period. If you are asked

to give a Zoom presentation then you must do so.

Formative Feedback

We are giving you the opportunity to receive feedback on the design of your program. To receive

this feedback, you need to upload a detailed UML class diagram of your code to student website

before 17:00 on Friday March 25th. As this is a formative feedback deadline, it will not be possible

for you to seek deadline extensions. You will be given a short amount of written feedback on your

design within a week. The Week 5 teaching session will go through a worked example in order to

help you produce the class diagram.

The class diagram should have all methods and attributes showing. In addition, you should indicate

which methods call which other methods. A class diagram with insufficient detail or syntactically

nonsensical or not realisable as an actual Java program will make it more difficult for us to give you

feedback and will receive a low mark if submitted with the final report.

Academic Conduct

This is an individual piece of work and you will have to work on your own and submit your own

original attempt at the assignment. Any code that has been copied from any source (e.g. Stack

Overflow, online tutorial, textbooks, other students etc.) must be properly referenced to avoid any

suspicion of plagiarism. Refer to the Module Handbook for further information on this. If you need

help you can always ask for advice and guidance from the module leader by email; online sessions

can be arranged for further clarification.

Rubric The work shall be marked according to the following rubric.

D C B A

Model only basic functionality

implemented or slightly more

than basic but references to View

or Controller or superfluous

methods

no superfluous methods and no

references to View or Controller

but only the basics of

functionality implemented

no superfluous methods and

no references to View or

Controller but only the basics

of functionality implemented

convenient to use with no superfluous methods, all required

functionality and no references to View or Controller, extends

Observable, calls setChanged and notifyObservers

Controller zero of the requirements: only

valid requests, querying Model

first, enables/disables buttons

without GUI code

one out of only valid requests,

querying Model first,

enables/disables buttons without

GUI code

two out of only valid requests,

querying Model first,

enables/disables buttons

without GUI code

only valid requests, has references to both Model and View,

converting UI interactions into methods to change the Model,

querying Model first, enables/disables buttons without GUI code

GUI View no view update method or

update method implementing

very few of the FRs

update method in view

implementing some of the FRs

update method in view

implementing most of the FRs

update method in view implementing all the FRs, uses Swing, has

Model and Controller as attributes, displays board and allows

Controller to change the view e.g. enable/disable options,

implements Observer and calls addObserver

CLI class CLI version implementing very

few of the FRs

CLI version implementing some of

the FRs

CLI version implementing

most of the FRs

CLI version implementing all the FRs, using same Model as the

GUI version, but no Controller and is demonstrated on the video

Specification

of

Model with

asserts

a few pre/postconditions

described in English

suitable pre/post conditions for

most public methods but in

English

suitable pre/post conditions

for most public

methods expressed in some

logic

suitable pre/post conditions for all public methods and class

invariants all expressed as statements of formal logic

Unit testing

of

Model with

JUnit

one test with the scenario poorly

described or not at all

tests all essentially similar or only

one or two or scenario being

tested poorly described

third test not significantly

different or scenario being

tested not described with

sufficient care

three significantly different tests of the model with all scenarios

exactly described and with all inputs satisfying the preconditions

Code quality

practices

most code quality practices not

observed

some code quality practices

observed but many not

most code quality practices

observed but some clearly not

all code quality practices observed including light correct

commenting, suitable identifier names (constants, methods,

classes etc) in appropriate cases, indentation, lack of code

smells (long methods, repeated code, lack of modularity)

Class

diagram

Inadequate class diagram with

serious mistakes in attributes and

relationships between classes

Adequate class diagram with

mistakes in both attributes and

relationships between classes

Good class diagram with only

a few mistakes in attributes,

visibility or relationships

between classes

Excellent class diagram with all attributes indicated with correct

visibilities and correct relationships between classes all shown

Video

Presentation

Very poor presentation with

insufficient coverage of FRs and

NFRs, poorly presented and

overly long

Passable presentation covering

FRs or NFRs or well-presented or

at least appropriate length

Quite good presentation but

missing some details of FRs

and NFRs or poorly presented

or overly long

Excellent presentation with full explanation of most FRs and

NFRs, referencing the code, well presented and within time limit