In the previous article, we have discussed an introduction to OOP, in this article we will dive deep into OOP.
Overview of OOP
OOP stands for “Object-oriented Programming”. It is a technique or we can say that it is a methodology. It is introduced to represents a real-world object in the programming world.
What is OOP?
OOP is a methodology that provides a way of modularizing a program by creating partitioned for both data and methods.
OOP is about creating objects that contain both data and methods.OOP provides a clear structure for the programs.OOP refers to a programming methodology based on objects, instead of just functions and procedures.
Object-Oriented Programming is a methodology or paradigm to design a program using classes and objects. It simplifies software development and maintenance.
Building blocks of OOP
- class
- object
Every java program must start with a class because using class only we can represent real-world objects like Employee, Country, etc.
OOP Principles
OOP principles are suggestions that provide rules and guidelines for creating real-world objects into programming by achieving security, reusability, and dynamic binding with high scalability. Below are the oop principles,
- Encapsulation
- Inheritance
- Polymorphism
- Abstraction
What type of programming languages are called OOP languages?
The programming language that supports implementing all the above OOP principles is called Object-oriented programming languages.
Difference between Object-based and Object-oriented programming languages?
The languages those contain object concept but not implements all OOP principle, such languages are object-based like JavaScript. Because it will not contain a class-based program.
The language that supports all the OOP principles is called Object-oriented programming languages. For example Java,C#.NET, Smalltalk are Object-oriented programming languages. simula and Smalltalk are considered as the first truly Object-oriented programming language.
So this is the overview of OOP, in the next article, we will see each OOP principle one by one deeply with examples.
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