The private members of a class can be inherited but cannot be accessed directly by its derived classes. They can be accessed using public or protected methods of the base class. The inheritance mode specifies how the protected and public data members are accessible by the derived classes.
Are protected members inheritable?
With protected , all public members of the base class are inherited as protected in the derived class. Conversely, if the most restricting access level is specified ( private ), all the base class members are inherited as private . … Actually, most use cases of inheritance in C++ should use public inheritance.
Can an inherited class access protected members?
A class can only access protected members of instances of this class or a derived class. It cannot access protected members of instances of a parent class or cousin class. In your case, the Derived class can only access the b protected member of Derived instances, not that of Base instances.
Can protected members be inherited in C++?
public, protected and private inheritance 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.
Can protected members be inherited in Java?
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.
Which access specifier is most secure during inheritance?
Explanation: The private members are most secure in inheritance. The default members can still be in inherited in special cases, but the private members can’t be accessed in any case.
What makes private members inheritable?
2) Making Private Members Inheritable :
a) Private derivation means that the base class has been inherited privately. b) Public members of the base class are private within the derived class. c) Protected members of the base class are private within the derived class.
What is the difference between protected and private access specifiers in inheritance?
private – only available to be accessed within the class that defines them. protected – accessible in the class that defines them and in other classes which inherit from that class. Things that are private are only visible within the class itself.
Who can access protected members?
Protected members in a class are similar to private members as they cannot be accessed from outside the class. But they can be accessed by derived classes or child classes while private members cannot.
Can we access protected members using objects?
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.
Is protected inheritance is used then?
Explanation: The protected members are allowed in the same package but can also be accessed in other packages using inheritance. But the default members can never be accessible in other packages. … Explanation: The protected and public members of the parent class will become the protected members in subclass.
Which members of a class Cannot be inherited?
Explanation: Private members of a class can’t be inherited. These members can only be accessible from members of its own class only. It is used to secure the data. 4.
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.