Encapsulation In C++

Encapsulation In C++ How To Implement Encapsulation In C++? 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How To Implement Exception Handling In C++? Goto Statement In C++ How To Implement Getline In C++? How To Implement Goto Statement In C++? How To Implement Sort function In C++? How To Implement Virtual Function in C++? How To Implement Inline Function in C++? How To Best Implement Type Conversion In C++? How To Implement Encapsulation In C++? Last updated on Oct 31,2019 1.8K Views edureka Bookmark How To Implement Encapsulation In C++? Become a Certified Professional C++ is a very versatile programming language and it has various object oriented programming features. In this article we would learning how to implement Encapsulation In C++. Following pointers will be covered in this article,Encapsulation In C++What Is Encapsulation?Access SpecifiersTypes Of EncapsulationSample ProgramSo let us get started the,Encapsulation In C++When all the data members and member functions are combined in a single unit called class, this process is called Encapsulation. In other words, wrapping the data together and the functions that manipulate them.ExampleIn a company, two software projects are going on with two different teams. One team requires data from the other team. But this team cannot access the data from the other team because they do not have the appropriate permissions. This is Encapsulation.Encapsulation also leads to data hiding or abstraction.Moving on with this Encapsulation in C++ article,Access SpecifiersWe can implement encapsulation by using access specifiers. They give the programmer the control on what data or functions are to be made visible to the user and what is kept a secret. There are three main access specifiers,PrivatePublicProtectedEach of these access specifiers is used to implement Encapsulation. By default, all data members and member function are made private by the compiler.Private Access SpecifiersWhen data member or member functions are made private, it can only be accessed inside the class and no one outside the class can access it. When it is accessed by any object outside the class, then an error is generated.During inheritance, all the private members cannot be directly accessed in the derived class.Public Access SpecifiersWhen data member or member functions are made public, it can be accessed by everyone. Even the other classes can access the public data members or member functionsProtected Access SpecifiersProtected Access Specifier is a special kind of access specifier. When data member or member functions are made protected, it works in a similar way to private and it can be accessed to members of the class. It can also be accessed from any subclasses of the class.Moving on with this Encapsulation in C++ article,Types Of EncapsulationThere are three types of encapsulations:Member Variable EncapsulationIn this type of encapsulation, all the data members are declared as private.Function EncapsulationIn this type of encapsulation, some of the member functions are declared as private. The constructor is public.Class EncapsulationIn this type of encapsulation, all a class is declared as private. This is mostly done during nested classes.Moving on with this Encapsulation in C++ article, we will see an Encapsulation Demo.Sample Program #includeiostream using namespace std; class test { private: int x; public: test(int a) { x =a; } int get() { return x; } }; int main() { test a(7); coutThe Number is: a.get(); return 0; } OutputExplanationIn the above program, we show the concept of encapsulation. We have a private member x which cannot be accessed from the main function. The only way to access it is by creating a object of class test.There is a parameterized constructor, which assigns the value we get from main to x. We have a get method, that returns the value of x. Inside the main function, we create an object of test class and assign a parameter. This moment the parameterized constructor is called, and it assigns the parameter value to x.We have a cout statement that calls the get function and the number is displayed.This is the basic concept of encapsulation.With this we come to the end of this blog on Encapsulation In C++. I hope you found this informative and helpful, stay tuned for more tutorials on similar topics.You may also checkout our training program to get in-depth knowledge on jQuery along with its various applications, you canenroll herefor live online training with 24/7 support and l ifetime access.Got a question for us? 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