Frequent question: Who can access protected variables?

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.

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 protected members be directly accessed?

protected members can be accessed: through this pointer. or to the same type protected members even if declared in base. or from friend classes, functions.

How can I access protected variable from another class?

Basically, the protected keyword is an access modifier for method and variable of a class. When a method or a variable is marked as protected, it can be accessed from: Within the enclosing class. Other classes in the same package as the enclosing class.

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Are protected variables private?

Private variables, are variables that are visible only to the class to which they belong. Protected variables, are variables that are visible only to the class to which they belong, and any subclasses.

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.

Can inherited class access private members?

Private members of a base class can only be accessed by base member functions (not derived classes). So you have no rights not even a chance to do so 🙂 Well, if you have access to base class, you can declare class B as friend class. … Use protected members, if you want derived classes to be able to access them.

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.

How can a protected member be accessed Mcq?

Explanation: The protected access modifier is accessible within package and outside the package but only through inheritance. The protected access modifier can be used with data member, method and constructor. It cannot be applied in the class.

Which member can never be accessed by inherited classes?

Which member can never be accessed by inherited classes? Explanation: The private member functions can never be accessed in the derived classes. The access specifiers is of maximum security that allows only the members of self class to access the private member functions.

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How do I access a protected method 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.

What are protected methods?

A protected method is like a private method in that it can only be invoked from within the implementation of a class or its subclasses. It differs from a private method in that it may be explicitly invoked on any instance of the class, and it is not restricted to implicit invocation on self .

Can subclasses access protected methods?

Methods marked protected can only be accessed by subclasses and by code in the same package. If you made the method public in both subclass and superclass, calling demoMethod() would call the subclass implementation, regardless whether the reference was of the super or subclass type.

What is the difference between protected and private?

Things that are protected are visible in the class itself and in subclasses. The difference is who can access those functions. Private = only members of the same class can access the function. Protected = Same as private but derived classes can also access.

What is the difference between public and private protected areas?

If the class member declared as public then it can be accessed everywhere. If the class members declared as protected then it can be accessed only within the class itself and by inheriting and parent classes. If the class members declared as private then it may only be accessed by the class that defines the member.

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