Who can access protected data?

Who can access protected?

The protected members are inherited by the child classes and can access them as its own members. But we can’t access these members using the reference of the parent class. We can access protected members only by using child class reference.

Who can access the protected section of a class?

Protected members that are also declared as static are accessible to any friend or member function of a derived class. Protected members that are not declared as static are accessible to friends and member functions in a derived class only through a pointer to, reference to, or object of the derived class.

Who can be accessed in private and protected member function?

2) Protected members

Just like Private Members Protected members cannot be accessed outside of the class (except in the derived class). Protected members can be data members (variables) and member functions (functions) and both can be accessed within the same class and derived or subclass or child class.

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Can protected members be accessed by objects?

You can only access protected members in instances of your type (or derived from your type). You cannot access protected members of an instance of a parent or cousin type. In your case, the Derived class can only access the b member of a Derived instance, not of a different Base instance.

How can we access protected and private members of a class?

Protected members can only be accessed by descendants of the class, and by code in the same module. Private members can only be accessed by the class they’re declared in, and by code in the same module.

Who can access a protected method in Java?

Variables, methods, and constructors, which are declared protected in a superclass can be accessed only by the subclasses in other package or any class within the package of the protected members’ class. The protected access modifier cannot be applied to class and interfaces.

How do you access protected methods outside a class?

How to access private/protected method outside a class in C++

  1. Prerequisites: Access Modifiers in C++, Runtime Polymorphism.
  2. Private: The class members declared as private can be accessed only by the functions inside the class. …
  3. Program 1: To demonstrate the private access modifier.
  4. Explanation:

Who can access the class member with a private modifier?

Private: The private access modifier is specified using the keyword private. The methods or data members declared as private are accessible only within the class in which they are declared. Any other class of the same package will not be able to access these members.

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How do you access data members of a class?

How to access data members of a class? Explanation: The data members can never be called directly. Dot operator is used to access the members with help of object of class. Arrow is usually used if pointers are used.

Can friend classes access private members?

A friend function is a function that is not a member of a class but has access to the class’s private and protected members. Friend functions are not considered class members; they are normal external functions that are given special access privileges.

What is protected data member?

Protected access modifier is similar to that of private access modifiers. The data members and member functions declared public can be accessed by other classes too. The class member declared as Protected are inaccessible outside the class but they can be accessed by any subclass(derived class) of that class.

How are protected data members different from private and public data members?

public – members are accessible from outside the class. private – members cannot be accessed (or viewed) from outside the class. protected – members cannot be accessed from outside the class, however, they can be accessed in inherited classes. You will learn more about Inheritance later.

How do you access protected variables outside the package?

The protected access modifier is accessible within the package. However, it can also accessible outside the package but through inheritance only. We can’t assign protected to outer class and interface. If you make any constructor protected, you cannot create the instance of that class from outside the package.

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Is C++ private?

By default access to members of a C++ class is private. The private members are not accessible outside the class; they can be accessed only through methods of the class.

Can protected members be inherited in C++?

protected inheritance makes the public and protected members of the base class protected in the derived class. private inheritance makes the public and protected members of the base class private in the derived class.