OOPS with Real Time Examples

 

INTRODUCTION TO OOPS

1)What is OOPS?

➔   Object Oriented Programming

➔   Paradigm which makes use of the concept of Object and Class to deal with real world problems.

➔   The complex programs can be easily understood and managed using the OOPs.

➔   It provides readability, understandability, maintainability and reusability of the code.

➔   SIMULA  is the first OOP language.

Example of OOPs Languages:

★    Java

★    Javascript

★    Python

★    Ruby

★    PHP

★    R

---

2)Need for OOPs?

➔   OOPs makes it easier for the developer to deal with complex real world problems.

➔   Implementation of the object can be changed without affecting the functionality of other code.

➔   flexibility(Polymorphism).

➔   Data Security(Encapsulation).

➔   Reusability of the code(Inheritance).

➔   Simplicity(Abstraction).

 

---

 

3)What is Pure Object Oriented Language?

          The terms "pure object oriented language" or "complete object oriented language" refers to the  languages that support or have features that consider every component of a programme as an object.

EXAMPLE:

★    SmallTalk

➢   First purely Object Oriented Language.

➢   Developed by  Alan Kay.

★    Ruby

★    Python

 

---

 

4)Programming Paradigms other than OOPs

★    Imperative Programming Paradigm

★    Declarative Programming Paradigm

NOTE: Paradigm-Set of ideas,Standard or Method.

               Programming Paradigm-Method of classification of       Programming Languages based on their features.

 

---

5)What is the Imperative  Programming Paradigm?

★    Oldest programming paradigm.

★    Based on Von Neumann Architecture.

★    They mainly focus on “how the problem is to be solved”

★    Contains sequence of steps to solve the problem.

REAL TIME EXAMPLE:

     Imperative programming is like listening to a stylist how to design a cloth,the stylist giving step by step instructions to stitch or design a cloth.

Example: Java,C,C++ and Fortan.

Types of Imperative Programming Paradigm:

1.     Procedural Programming Paradigm

2.    Object-Oriented Programming Paradigm

3.    Parallel Programming

---

6)What is the Declarative Programming Paradigm?

●      Also called non procedural or  very high level programming languages.

●      It specifies “What is to be done” rather than how the problem to be solved.

●      Does not explicitly mention the control flow.

REAL TIME EXAMPLE:

      Declarative Programming is like asking your stylist to design a costume, you don’t know the steps involved, just the costume(output/result) is enough.Here you just mention what type of cloth to be used,selecting the design for your costume.

Example: HTML, CSS, XML, Prolog.

Types of Declarative Programming:

1.     Logical Programming Paradigm

2.    Functional  Programming Paradigm

3.    Database Programming Paradigm

 

---

7)Main Features of OOPS

★    Encapsulation

★    Abstraction

★    Inheritance

★    Polymorphism

 Read More: Features Of OOPS.

---