What is the difference between public/private and protected members of a class?

The difference between public and protected is that public can be accessed from outside class but protected cannot be accessed from outside class. In the example above, we created a protected method inside the Addition class.

What is difference between public/private and protected?

A public member is accessible from anywhere outside the class but within a program. … 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.

What is the difference between public and protected access modifiers?

Public member can be accessed from non-child classes of the same package. Private members cannot be accessed from non-child classes of the same package. Protected member can be accessed from non-child classes of the same package. Package member can be accessed from non-child class of the same package.

What is public/private protected called?

The keywords public, private, and protected are called access specifiers.

What is private visibility?

Private : When a property or method visibility is set to private, only the class that has the private members can access those methods and properties(Internally within the class), despite of whatever class relation there maybe.

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How are this () and super () used with constructors?

super() as well as this() both are used to make constructor calls. super() is used to call Base class’s constructor(i.e, Parent’s class) while this() is used to call current class’s constructor. super() is use to call Base class’s(Parent class’s) constructor.

What is public/private and protected in C++?

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.

How many private public or protected sections can be there in a class?

One can access a private member within the same class in which it is described only. One can access a protected member within all classes in the same package and within the subclasses in other package. Public members can be accessed by any class. I hope this answer is helpful.

Can constructor be inherited?

Constructors are not members, so they are not inherited by subclasses, but the constructor of the superclass can be invoked from the subclass.