Public variables, are variables that are visible to all classes. 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.
Who can access protected variables?
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.
Is protected private or public?
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.
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.
What is the difference between public and protected variables?
public : accessible from everywhere. protected : accessible by the classes of the same package and the subclasses residing in any package. default (no modifier specified): accessible by the classes of the same package. private : accessible within the same class only.
Can we inherit private methods?
say() because derived classes can’t inherit private methods from its base class. Only protected and public methods/variables can be inherited and/or overridden.
Can protected variables be inherited?
Only subclasses can access protected variables. All classes can access public variables. 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.
Is protected package private?
The private modifier specifies that the member can only be accessed in its own class. The protected modifier specifies that the member can only be accessed within its own package (as with package-private) and, in addition, by a subclass of its class in another package.
What is public/private and protected as together called?
The keywords public, private, and protected are called access specifiers. A class can have multiple public, protected, or private labeled sections. … The default access for members and classes is private.
What is the difference between public and private protected areas?
A public member is accessible from anywhere outside the class but within a program. … A private member variable or function cannot be accessed, or even viewed from outside the class. Only the class and friend functions can access private members.
What are the protected members inheritance?
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.
Can we access protected and private members of a class?
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 I inherit the constructor and destructor of a base class?
base class. Hybrid inheritance: It is the mixture of one or more above inheritance. Constructor and Destructor Execution in Inheritance: When an object of a derived class is created, if the base class contains a constructor, it will be called first, followed by the derived class’ constructor.