Introduction to OOP

OOP is one of the programming paradigms that is purely based on objects. These objects contain data (please refer to day seven for more details).

Note

When we do the classification of programming languages it is called programming paradigm. For more information refer to https://en.wikipedia.org/wiki/Programming_paradigm.

OOP has come into consideration to overcome the limitations of earlier programming approaches (consider the procedural language approach).

Generally, I define OOP as follows:

A modern programming language in which we use objects as building blocks to develop applications.

There are a lot of examples of objects in our surroundings and in the real world, we have various aspects that are the representation of objects. Let us go back to our programming world and think about a program that is defined as follows:

A program is a list of instructions that instructs the language compiler on what to do.

To understand OOP more closely, we should know about earlier programming...