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1. Top results related to what is object-oriented programming

   • What is client side in Object Oriented Programming?

     Top Answer

     Answered Jan 15, 2012 · 3 votes

     Client-server describes an application architecture in which the client requests an action or service from the provider of service, the server. For e.g. browser is the client of a web server. Now the client and server can be co-located within the same process or within the same computer or they can be running on different computers.

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     1/5

   • What is 'Access specifier' in Object Oriented Programming

     Top Answer

     Answered Aug 23, 2017 · 2 votes

     What are they?

     This wikipedia article pretty much sums it up. But Let's elaborate on a few main points. It starts out saying:

     Access modifiers (or access specifiers) are keywords in object-oriented languages that set the accessibility of classes, methods, and other members. Access modifiers are a specific part of programming language syntax used to facilitate the encapsulation of components.1

     So an Access Specifier aka Access Modifier takes certain class, method, or variable and decides what other classes are allowed to use them. The most common Access Specifiers are Public, Protected, and Private. What these mean can vary depending on what language you are in, but I'm going to use C++ as an example since that's what the article uses.

     Accessor Method | Who Can Call It-----------------------------------------------------------------------Private | Only the class who created itProtected | The class who created it and derived classes that "inherit" from this classPublic | Everyone can call it-

     Why is this important?

     A big part of OOP programming is Encapsulation. Access Specifiers allow Encapsulation. Encapsulation lets you choose and pick what classes get access to which parts of the program and a tool to help you modularize your program and separate out the functionality. Encapsulation can make debugging a lot easier. If a variable is returning an unexpected value and you know the variable is private, then you know that only the class that created it is affecting the values, so the issue is internal. Also, it stops other programmers from accidentally changing a variable that can unintentionally disrupt the whole class.

     Simple Example

     Looking at the example code from the article we see Struct B i added the public in there for clarity:

     struct B { // default access modifier inside struct is public public: void set_n(int v) { n = v; } void f() { cout << "B::f" << endl; } protected: int m, n; // B::m, B::n are protected private: int x;};-

     This is what would happen if you created an inherited struct C that would try and use members from struct B

     //struct C is going to inherit from struct Bstruct C :: B { public: void set_m(int v) {m = v} // m is protected, but since C inherits from B // it is allowed to access m. void set_x(int v) (x = v) // Error X is a private member of B and // therefore C can't change it. };-

     This is what would happen if my main program where to try and access these members.

     int main(){ //Create Struct B structB; C structC;- structB.set_n(0); // Good Since set_n is public structB.f(); // Good Since f() is public- structB.m = 0; // Error because m is a protected member of Struct B // and the main program does not "inherit" from struct B"- structB.x = 0; // Error because x is a private member of Struct B- structC.set_n() // Inheritied public function from C, Still Good structC.set_m() // Still Good- structC.m = 0 // Error Main class can't access m because it's protected. structC.x = 0; // Error still private.- return 0;}-

     I could add another example using inheritance. Let me know if you need additional explanation.

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     2/5

   • What is the importance of object oriented programming for competitive programming?

     Top Answer

     Answered Sep 15, 2019 · 1 votes

     Rarely do we use OOP in competitive programming & Problem solving. OOP is important when program a system(has many components) to make it more organized.

     However,OOP is used(Rarely) in competitive programming to simplify datatype..

     Here there is an Example..

     if you have 1000 point and each of them has its left, right, top ,down value, so to simplify it, we make a class

     Class Point{int LeftValue;int RightValue;int TopValue;int DownValue;}-

     Then easily make an array of the "point" class with the size of 1000

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     3/5

   • What is the purpose of copying an object in object oriented programming?

     Top Answer

     Answered Nov 21, 2021 · 8 votes

     There are many situations where you might need to duplicate an object.

     • For convenience: When you create an object, you usually need to initialize it, either in the form of calling methods to set values, or in the form of passing parameters to the constructor. Sometimes, performing all this initialization might amount to a lot of work. If you want a new object B which only differs from another object A by a single value, then it may be easier to get a copy of A as B and change a single value of B, rather than to create B from scratch.
     • Because logic requires it: When a chess playing algorithm wants to make its next move, it may internally make many copies of the current board, modify each one of them with one of many possible moves that it may make, evaluate each one of the new boards using some heuristics, pick the best, and then use that as the new current board.
     • To be defensive: When a Person object is asked for its DateOfBirth , it may not necessarily return a reference to its own DateOfBirth , because someone might then alter the Date object, thus altering the Person's DateOfBirth . So, the Person object is likely to return a defensive copy of its DateOfBirth .
     • To take a snapshot: If I have a list of event observers to invoke, I might want to take a (shallow) snapshot copy of the list before starting to invoke the observers, because an observer may decide to unregister itself while I am processing the list, which will have disastrous consequences. ( ConcurrentModificationException , look it up.)

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     4/5

   • Also try

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2. www.freecodecamp.org › news › what-is-object-oriented-programmingOOP Meaning – What is Object-Oriented Programming?

   www.freecodecamp.org › news › what-is-object-oriented-programming

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   Sep 6, 2022 · The dictionary meaning of an object is "an entity that exists in the real world", and oriented means "interested in a particular kind of thing or entity". In basic terms, OOP is a programming pattern that is built around objects or entities, so it's called object-oriented programming.

3. www.geeksforgeeks.org › introduction-of-object-orientedIntroduction of Object Oriented Programming - GeeksforGeeks

   www.geeksforgeeks.org › introduction-of-object-oriented

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   Feb 9, 2023 · As the name suggests, Object-Oriented Programming or OOPs refers to languages that use objects in programming. Object-oriented programming aims to implement real-world entities like inheritance, hiding, polymorphism, etc in programming.

4. www.techtarget.com › object-oriented-programming-OOPWhat is Object-Oriented Programming (OOP)? - TechTarget

   www.techtarget.com › object-oriented-programming-OOP

   Object-oriented programming (OOP) is a computer programming model that organizes software design around data, or objects, rather than functions and logic. An object can be defined as a data field that has unique attributes and behavior. OOP focuses on the objects that developers want to manipulate rather than the logic required to manipulate them.

5. developer.mozilla.org › Objects › Object-oriented_programmingObject-oriented programming - Learn web development | MDN

   developer.mozilla.org › Objects › Object-oriented_programming

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   Aug 2, 2023 · Object-oriented programming (OOP) is a programming paradigm fundamental to many programming languages, including Java and C++. In this article, we'll provide an overview of the basic concepts of OOP. We'll describe three main concepts: classes and instances, inheritance, and encapsulation.

6. brilliant.org › wiki › object-oriented-programmingObject-Oriented Programming | Brilliant Math & Science Wiki

   brilliant.org › wiki › object-oriented-programming

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   Object-oriented programming (OOP) is a common and powerful programming paradigm that heavily incorporates ideas of abstraction. Abstraction allows programmers to write code that shows the essential features of a piece of software without including the background details.

7. m.youtube.com › watchIntro to Object Oriented Programming - Crash Course - YouTube

   m.youtube.com › watch

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   Sep 30, 2020 · Intro to Object Oriented Programming - Crash Course - YouTube. freeCodeCamp.org. 9.15M subscribers. Subscribed. 25K. 869K views 3 years ago. Learn the basics of object-oriented...

8. realpython.com › python3-object-oriented-programmingObject-Oriented Programming (OOP) in Python 3 – Real Python

   realpython.com › python3-object-oriented-programming

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   Sep 11, 2023 · Object-oriented programming (OOP) is a method of structuring a program by bundling related properties and behaviors into individual objects. In this tutorial, you’ll learn the basics of object-oriented programming in Python. Conceptually, objects are like the components of a system. Think of a program as a factory assembly line of sorts.