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CO2401 Software Development Lecture 14 Notes
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  • Course
  • Software Development (CO2401)
  • Institution
  • University Of Central Lancashire Preston (UClan)

This document contains comprehensive notes from Lecture 14 of the CO2401 course on Software Development. The lecture introduces and explores the fundamental concepts of Object-Oriented Programming (OOP), a programming paradigm that organizes code around objects representing real-world entities or c...

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Document information

  • August 22, 2024
  • 3
  • 2023/2024
  • Class notes
  • Muhammad alhassan
  • All classes

Subjects

  • computer science
  • software
  • development
  • university
  • computer
  • 2nd year
  • efficiency
  • lecture
  • cs
  • notes

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  • University of Central Lancashire Preston (UClan)
  • Unknown
  • Software Development (CO2401)
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CO2401: Software Development
Lecture 14

Introduction to Object-Oriented Programming (OOP)
1. OOP Overview
o Object-Oriented Programming (OOP): A programming paradigm
that organizes code around objects, which represent real-world
entities or concepts.
o Objects: Instances created based on the blueprint provided by
classes.
o Classes: Define the attributes (data) and methods (functions) that
objects will have.
Recap: Principles of OOP
1. Four Pillars of OOP:
o Abstraction: Modeling real-world objects in a specific context,
representing only the relevant details with high accuracy while
omitting the irrelevant ones.
o Encapsulation: Hiding parts of an object's state and behavior from
other objects, exposing only a limited interface to the rest of the
program.
o Inheritance: Building new classes on top of existing ones, enabling
code reuse.
o Polymorphism: The ability of a program to detect the real class of
an object and call its implementation, even when its real type is
unknown in the current context.
What is a Design Pattern?
1. Definition:
o Design Patterns: Typical solutions to commonly occurring
problems in software design. They provide a high-level description
of a solution to a problem, rather than a step-by-step algorithm.
o Difference from Algorithms: While algorithms define a clear set
of actions to achieve a specific goal, patterns offer a more abstract
solution to a problem.

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