What is the Difference Between Structured Programming and Object Oriented Programming?

The main difference between structured programming and object-oriented programming lies in their approach to organizing and managing code. Here are some key differences between the two:

Organization: Structured programming allows developing a program using a set of modules or functions, while object-oriented programming allows constructing a program using a set of objects and their interactions.
Approach: Structured programming generally follows a "Top-Down Approach," dividing the code into smaller functions, while object-oriented programming follows a "Bottom-Up Approach," focusing on creating objects that contain both data and code.
Flexibility and Abstraction: Structured programming provides less flexibility and abstraction compared to object-oriented programming.
Focus: Structured programming focuses on dividing the program into a set of functions, while object-oriented programming focuses on creating objects that contain data and code.
Communication: In structured programming, the main method communicates with functions by calling them, while in object-oriented programming, objects communicate with each other by passing messages.
Access Specifiers: Structured programming does not use access specifiers, while object-oriented programming uses encapsulation and access modifiers to control the visibility and accessibility of data and methods.

Examples of structured programming languages include Pascal, ALGOL, C, and Modula-2, while examples of object-oriented programming languages include Java, C++, and C#.

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What is the Difference Between Structured Programming and Object Oriented Programming?

Comparative Table: Structured Programming vs Object Oriented Programming

Here is a table comparing the differences between Structured Programming and Object-Oriented Programming:

Feature	Structured Programming	Object-Oriented Programming
Focus	Modules or functions	Objects and their interactions
Decomposition	Functional, Algorithmic	Object-oriented decomposition
Main Focus	Dividing the program into a set of functions	Encapsulation, Abstraction, Inheritance, Polymorphism, etc.
Communication	Main method communicates with functions by calling them	Objects communicate with each other by passing messages
Access Specifiers	No access specifiers	Access specifiers such as public, private, protected are used
Programming Paradigm	Subset of procedural programming	Different approach to programming that brings together data and functions
Security	Less secure due to lack of data hiding	More secure due to data hiding feature
Popular Languages	Varies by language	Java, C++, C#, Python, etc.

Structured Programming focuses on breaking down the code into smaller modules or functions, while Object-Oriented Programming is based on the concept of objects, which contain both data and code. Object-Oriented Programming supports encapsulation, abstraction, inheritance, and polymorphism, making it more secure and modular. Structured Programming does not have access specifiers, while Object-Oriented Programming uses them to control access to data and functions.

Guilherme Mazui

Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.