Advanced Programming | 11. Object-Oriented Programming Concepts by Abraham | Learn Smarter
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11. Object-Oriented Programming Concepts

Object-Oriented Programming (OOP) is a methodology that encapsulates data and behavior into objects, providing a framework for building complex software systems. The four pillars of OOP—encapsulation, inheritance, polymorphism, and abstraction—facilitate reusable and maintainable code design. This chapter delves into essential concepts, terminology, advanced topics, and OOP design patterns that help developers create efficient and scalable applications.

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Sections

  • 11

    Object-Oriented Programming Concepts

    Object-Oriented Programming (OOP) organizes software design around data and objects, providing modular and reusable code structures.

    Learning Practice

  • 11.1

    Basics Of Object-Oriented Programming

    This section introduces the foundational concepts of Object-Oriented Programming (OOP), focusing on its core principles and structure involving objects and classes.

    Learning Practice

  • 11.2

    Four Pillars Of Oop

    The Four Pillars of OOP—Encapsulation, Inheritance, Polymorphism, and Abstraction—fundamentally shape how object-oriented programming is structured.

    Learning Practice

  • 11.2.1

    Encapsulation

    Encapsulation is the bundling of data and methods together within a class while restricting access to some components.

    Learning Practice

  • 11.2.2

    Inheritance

    Inheritance is a fundamental concept in object-oriented programming that allows a subclass to inherit properties and behaviors from a superclass.

    Learning Practice

  • 11.2.3

    Polymorphism

    Polymorphism enables objects to be treated as instances of their parent class, facilitating method overloading and overriding.

    Learning Practice

  • 11.2.4

    Abstraction

    Abstraction in object-oriented programming focuses on hiding the complexities of implementation while exposing only the essential features of an object.

    Learning Practice

  • 11.3

    Oop Terminology And Concepts

    This section covers essential Object-Oriented Programming (OOP) terminology and concepts, including constructors, the 'this' keyword, static and final keywords.

    Learning Practice

  • 11.3.1

    Constructor

    A constructor is a special method automatically invoked when an object is created.

    Learning Practice

  • 11.3.2

    This Keyword

    The 'this' keyword in programming refers to the current object instance, allowing unambiguous access to instance variables and methods.

    Learning Practice

  • 11.3.3

    Static Keyword

    The static keyword in programming denotes members of a class that belong to the class itself rather than to specific instances.

    Learning Practice

  • 11.3.4

    Final Keyword

    The final keyword in programming is used to define constants, methods that cannot be overridden, and classes that cannot be inherited.

    Learning Practice

  • 11.4

    Object Class And Method Overriding (Java-Specific)

    This section discusses the significance of the Object class in Java and the concept of method overriding.

    Learning Practice

  • 11.5

    Aggregation Vs Composition

    Aggregation and composition are two types of relationships in object-oriented programming that define how objects interact and depend on each other.

    Learning Practice

  • 11.6

    Interface Vs Abstract Class

    This section covers the essential differences between interfaces and abstract classes in object-oriented programming, highlighting their unique features and use cases.

    Learning Practice

  • 11.7

    Solid Principles In Oop

    The SOLID principles provide a framework for designing scalable and maintainable object-oriented programming (OOP) systems.

    Learning Practice

  • 11.8

    Advanced Oop Concepts

    This section delves into advanced Object-Oriented Programming concepts, including object cloning, inner classes, anonymous classes, and lambda expressions.

    Learning Practice

  • 11.8.1

    Object Cloning

    Object cloning in Java involves creating a duplicate of an object using the clone() method.

    Learning Practice

  • 11.8.2

    Inner Classes

    Inner classes are classes defined within another class, providing a way to logically group classes that belong together.

    Learning Practice

  • 11.8.3

    Anonymous Classes

    Anonymous classes are unnamed classes that enable the creation of instances with specific enhancements within a single statement.

    Learning Practice

  • 11.8.4

    Lambda Expressions (Java 8+)

    Lambda expressions enable functional programming in Java, allowing for cleaner and more concise code.

    Learning Practice

  • 11.9

    Object-Oriented Design Patterns

    This section covers the concept of Object-Oriented Design Patterns, categorizing them into creational, structural, and behavioral patterns.

    Learning Practice

References

Chapter_11_Objec.pdf

Class Notes

Memorization

What we have learnt

  • OOP is based on the creatio...
  • The four pillars of OOP are...
  • Key concepts in OOP include...

Revision Tests