FEATURES OF OBJECT ORIENTED PROGRAMMING.pptx

Features OF OOP

1. FEATURES OF OBJECT ORIENTED PROGRAMMING Dr.J.Jospin Jeya

2. What is OOP? Definition : Object-Oriented Programming is a programming paradigm based on the concept of "objects," which can contain data in the form of fields (often known as attributes) and code in the form of procedures (often known as methods). Main Goal : To make the code more modular, reusable, and easier to maintain.

3. Key Concepts of OOP Encapsulation Abstraction Inheritance

4. Encapsulation Definition : The bundling of data (attributes) and methods (functions) that operate on the data into a single unit called a class. Access Modifiers : Public, Private, Protected Example : A class Car has private attributes like speed and fuelLevel , and public methods like start(), stop().

5. Abstraction Definition : The concept of hiding the complex implementation details and showing only the essential features of an object. Real-Life Example : A TV remote – you don’t need to know how it works internally, just how to use it (power on, change channels, volume up/down). Implementation in OOP : Abstract classes and interfaces to define the methods but leave the implementation to the subclass.

6. Inheritance Definition : The mechanism by which one class can inherit properties and behaviors (methods) from another class. Parent Class (Super Class) : The class whose properties and methods are inherited. Child Class (Sub Class) : The class that inherits the properties and methods of the parent class.

7. Polymorphism Definition : The ability to take many forms, allowing one interface to be used for different data types or classes. Types of Polymorphism : Method Overloading : Same method name, but different parameters. Method Overriding : Same method signature in a subclass but with a different implementation. Example : A method speak() in a class Animal, overridden by speak() in subclasses Dog and