Unit 20 - Assignment 1 frontsheet.pdf - ASSIGNMENT 1 FRONT...

ASSIGNMENT 1 FRONT SHEET
Qualification BTEC Level 5 HND Diploma in Computing
Unit number and title Unit 20: Advanced Programming
Submission date 06/10/2020 Date Received 1st submission
Re-submission Date Date Received 2nd submission
Student Name Le Huy Hoang Student ID
Class Gch0717 Assessor name Le Minh Duc
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I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that
making a false declaration is a form of malpractice.
Student’s signature hoang
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Table of Contents
I. Introduction ............................................................................................................................................................................................... 4
II. Object-Oriented Programming (OOP) ......................................................................................................................................................... 4
1. Definition ............................................................................................................................................................................................... 4
2. Characteristics of OOP ............................................................................................................................................................................ 4
3. Scenario OOP ......................................................................................................................................................................................... 4
III. Design Pattern ...................................................................................................................................................................................... 10
1. Behavioral Pattern ................................................................................................................................................................................ 10
2. Creational Pattern ................................................................................................................................................................................. 14
3. Structural Design Pattern ...................................................................................................................................................................... 16
References ........................................................................................................................................................................................................... 20
Figure 1: Usecase Diagram for OOP Scenario ......................................................................................................................................................... 6
Figure 2:UML class Diagram for OOP Scenario ....................................................................................................................................................... 8
Figure 3: Activity Diagram for OOP Scenario .......................................................................................................................................................... 9
Figure 4: Behavior pattern Structure (Mössenböck, 1993) .................................................................................................................................... 11
Figure 5: Diagram of the Scenario ......................................................................................................................................................................... 13
Figure 6: Builder Design pattern Diagram ............................................................................................................................................................. 16
Figure 7: Adapter design pattern Structure (Mössenböck, 1993) .......................................................................................................................... 18
Figure 8: Class diagram for the scenario ................................................................................................................................................................ 19

I. Introduction
Object-oriented programming (OOP) is one of most programming method nowadays. It helps to increase productivity, simplify
maintenance when maintaining, easier to learn, easier to learn than previous methods, reduce the amount of code. This document will introduce
about basic concepts of OOP and design pattern. (Mössenböck, 1993)
II. Object-Oriented Programming (OOP)
1. Definition
"Object-oriented programming means programming with abstract data types (classes) using inheritance and dynamic binding".
2. Characteristics of OOP
 Encapsulation : As a way to hide the inner handling properties of an object, other objects cannot be directly manipulated to change
the state that can only be accessed through the public methods of that object.
 Abstraction : An abstraction method defines the actions and properties of certain types of objects.
 Polymorphism : An object of different classes that can understand the same message in different ways.
 Inheritance : A technique that allows inheriting features that another object already has, helping to avoid redundant code
duplication but only when processing the same job.
3. Scenario OOP
The library has many bookshelves that store different types of books. Borrowers and librarians may search for books by title, category or
publisher name of the book. When a book is found, the system will automatically notify whether the book is still available on the shelf or not.
Those who want to borrow books can log in and use their account to keep the number of books they want to borrow and come to the library to
receive within 3 days. Or the borrower has a direct registration with the librarian at the library. The system will automatically notify the borrower
to return the book if it is overdue through the account. After the book is returned to the library, the librarian will immediately check the status of