How do I access protected members?

Are protected members public?

Protected members are not as private as private members, which are accessible only to members of the class in which they are declared, but they are not as public as public members, which are accessible in any function.

Can not access protected member?

8 Answers. yes protected members are accessible by derived classes but you are accessing it in the main() function, which is outside the hierarchy. If you declare a method in the class B and access num it will be fine. Yes, protected members are accessible by the derived class, but only from within the class.

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 a class access its protected members?

8 Answers. 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.

THIS IS INTERESTING:  How is the brain protected naturally?

How do I access a protected class?

Protected Access Modifier – Protected

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 I access protected base class 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.

How do you access protected methods outside a class?

Example 2

  1. class A {
  2. protected String msg=”Try to access the protected variable outside the class within the package”;
  3. }
  4. public class ProtectedExample2 {
  5. public static void main(String[] args) {
  6. A a=new A();
  7. System.out.println(a.msg);
  8. }

How do you inherit protected members in C++?

Protected Inheritance − When deriving from a protected base class, public and protected members of the base class become protected members of the derived class. Private Inheritance − When deriving from a private base class, public and protected members of the base class become private members of the derived class.

What are protected members in C++?

The protected Members

A protected member variable or function is very similar to a private member but it provided one additional benefit that they can be accessed in child classes which are called derived classes. You will learn derived classes and inheritance in next chapter.

Can friend function access protected 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.

THIS IS INTERESTING:  Your question: Does Network Access Protection need to be on?

How do you access data members of a class?

Accessing data members and member functions: The data members and member functions of class can be accessed using the dot(‘. ‘) operator with the object. For example if the name of object is obj and you want to access the member function with the name printName() then you will have to write obj. printName() .

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

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 child classes. If the class members declared as private then it may only be accessed by the class that defines the member.