Oops concepts

Object Oriented Programming is one of the most widely used programming paradigms. The name itself defines how it works. “Object Oriented” - the Object plays an important role. Manipulating objects and getting the results is the ultimate goal of Object Oriented Programming. The languages that use Object Oriented Programming paradigms are known as Object Oriented Programming Languages. They are mostly high level languages such as • Java • C# • Python - Python is both a Scripted/Structured & Object Oriented Language To program in Object Oriented Programming, concepts called “ Object Oriented Concepts” are used. These concepts simplify & add more value to Object Oriented Programming. Those concepts are • Encapsulation • Abstraction • Polymorphism • Inheritance Before moving into these concepts, we need to know about Class & Objects. An Object is the basic run-time entity in OOP. In our day-today life we see a lot of objects like a television, mobile phone, dog, humans, cars & other living and non-living objects. These can be portrayed as objects in OOP. A Class is a blueprint or prototype that defines variables/properties and methods/functions common to all objects of a certain kind. It's a logical component. Simply said, Class is a user-defined data type. Objects are variables of a Class. Once the Class has been created we can create as many Objects as we want. For example, take a class named Tree. State/properties of the Tree class are: • Name of the tree • Age of the tree •...

Software developers and engineers deploy object oriented programming in a wide variety of projects. This approach to programming went from the academic world of the 1960s to the computer boom of the 1980s because of its modularity. Programming languages like Java and Python facilitate object oriented programming for personal and commercial projects. Newcomers to the software industry need advanced knowledge of this programming style for long-term success. Understanding object oriented programming concepts and advantages starts with a history lesson. We can answer the question, “What is object oriented programming?” after we find out why it was created. Origins of Object Oriented Programming Computer scientist Alan Kay is often cited as the creator of this programming style. Kay was a student at the University of Utah when he sought an alternative to the functional programming norms of the day. In his mind, existing programming schemes were heavily reliant on data and too intricate for increasingly complex systems. Object oriented programming combines data and functions into classes that inform objects. “My math background made me realize that each object could have several algebras associated with it, and there could be families of these, and that these would be very very useful.” Kay’s development of object orientation focused as much on communication between objects as the objects themselves. Objects pass messages to activate processes for functions rather than directly ...

Table of Contents • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Introduction We’ll go over the fundamentals of Object-Oriented Programming and define terminology like abstraction, encapsulation, inheritance, and polymorphism in this post. To begin, OOP is a programming style that needs programmers to construct objects and use them throughout the program in functions that demand the use of such objects. The OOPs concepts with real-time examples are widely utilized in Java because it allows for code reusability while still preserving security. OOPs is very useful in nearly every programming language like in In today’s technology-driven environment, computer programming skills are in high demand. When it comes to designing and managing software programs, understanding object-oriented programming (OOP) can be extremely useful. In this tutorial, we’ll go through the fundamentals of OOP and illustrate them with simple examples. OOPs and its concepts with real-time examples can help you to discover and learn all the aspects of object-oriented programming easily. What Is OOP? Object-Oriented Computers, or OOPs concepts with real time examples, refer to programming languages that make use of objects. Inheritance, hiding, polymorphism, and other real-world concepts are all part of object-oriented programming. The basic goal of OOPs concepts with real time examples is to connect data and the functions that operate on it so that no other part of the code may access it exce...

You can better understand Object-Oriented Programming also called OOP with help of an example. Suppose you are working on a “Hotel Management System” project for a hotel. If you think of developing a system using procedural programming (which is based on procedures or routines that contains a series of steps to be carried out for working) then the system can be viewed in terms of work happening in a hotel that is check-in at the hotel, check-out from hotel, manage rooms, manage bookings of room etc. However, OOP concept revolves around real-world objects and their usages. Thus in OOP, Hotel Management System can be thought of in terms of the objects involved. Now the question arises, What are objects? So objects are the real-world entity around which our system revolves or in other words system is dependent on objects. In the hotel management system what all objects you can think of in a hotel? – “Room” which can represents the rooms in that hotel – “Customer” which represents the customer who will visit to the hotel to book room – “Booking” which can represents the booking of the room which will be done by customer So, all these objects represent real world entities and make our system similar to real world entities. Thus you can say that the Object-Oriented programming concept views problems in terms of real-world objects. Now, to describe or represent real-world objects or entities you need Classes. Class is used to bind characteristics(variables) and functionality. Whe...

Object-Oriented Programming Concepts are very important for programming. Without having an idea about OOPS concepts, you will not be able to design systems in the object-oriented programming model. The object-oriented programming model revolves around the concept of Objects. What is an Object? An object is an instance of a Class. It contains properties and functions. They are like real-world objects. For example, your car, house, laptop, etc. are all objects. They have some specific properties and methods to perform some action. What is a Class? The Class defines the blueprint of Objects. They define the properties and functionalities of the objects. For example, Laptop is a class and your laptop is an instance of it. Core OOPS concepts are: • Abstraction • Encapsulation • Polymorphism • Inheritance • Association • Aggregation • Composition Let’s look into these object-oriented programming concepts one by one. We will use Java programming language for code examples so that you know how to implement OOPS concepts in Java. Abstraction is the concept of hiding the internal details and describing things in simple terms. For example, a method that adds two integers. The internal processing of the method is hidden from the outer world. There are many ways to achieve abstraction in object-oriented programmings, such as encapsulation and inheritance. A Java program is also a great example of abstraction. Here java takes care of converting simple statements to machine language and ...

by Alexander Petkov Have you noticed how the same cliche questions always get asked at job interviews — over and over again? I’m sure you know what I mean. For example: Where do you see yourself in five years? or, even worse: What do you consider to be your greatest weakness? Ugh…give me a break. I consider answering this question a great weakness! Anyway, not my point. As trivial as questions like these may be, they are important because they give clues about you. Your current state of mind, your attitude, your perspective. When answering, you should be careful, as you may reveal something you later regret. Today I want to talk about a similar type of question in the programming world: What are the main principles of Object-Oriented Programming? I’ve been on both sides of this question. It’s one of those topics that gets asked so often that you can’t allow yourself to not know. Junior and entry-level developers usually have to answer it. Because it’s an easy way for the interviewer to tell three things: • Did the candidate prepare for this interview? Bonus points if you hear an answer immediately — it shows a serious approach. • Is the candidate past the tutorial phase? Understanding the principles of Object-Oriented Programming (OOP) shows you’ve gone beyond copy and pasting from tutorials — you already see things from a higher perspective. • Is the candidate’s understanding deep or shallow? The level of competence on this question often equals the level of competence on...

• • • • • Submit an article or tip • Import GitHub Project • Import your Blog • • quick answers Q&A • Ask a Question about this article • Ask a Question • • • • • • • • • discussions forums • • • > • • • • • • • • • • > • • • • • • • > • • • • • • • • • • • • • • • • features features • • • • • • • • • community lounge • • • • • • • • • help ? • • • • • • • This article is a constructive attempt to group/define/explain all introductory concepts of software architecture for seasoned developers who are looking to take their next step as system architects. We'll cover large topics like what is Software Architecture and OOP, and smaller ones like: What is an Object? What is a Class? We also look at Use Case, MVC architecture, SOA, Data Access Layer, and Design Patterns. • Table of Contents • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 1. I have noticed an increase in the number of articles published in the Architecture category on Code Project during the last few months. The number of readers for most of these articles is also high, though the ratings for the articles are not. This indicates that readers are interested in reading articles on architecture, but the quality does not match their expectations. This article is a constructive attempt to group/define/explain all introductory concepts of software architecture for seasoned developers who are looking to take their next step as system architects. One day, I read an article that said that th...