Can we use protected in class?

Why protected modifier is not applicable for classes?

The answer why protected class will not be accessed by JVM is that, since protected fields are accessible within same package or to diffrent package through inheritance only and JVM is not written in a way so that it will inherit will class.

What is the use of a protected class?

The protected keyword specifies access to class members in the member-list up to the next access specifier ( public or private ) or the end of the class definition. Class members declared as protected can be used only by the following: Member functions of the class that originally declared these members.

Can we declare protected method in public class?

Yes, you can declare an abstract method protected. If you do so you can access it from the classes in the same package or from its subclasses.

When should you use protected?

So if we want data members to be accessible to only derived classes and not privately or publicly accessible, then we can use protected. – Protected is similar to private. – It makes class member inaccessible outside the class, but the members can be accessed by any subclass of that class.

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Can a class be declared with a protected modifier?

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.

Can we inherit protected class 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.

When should I use protected in Java?

Use the protected modifier when you need to only allow access to the code within the package or when its subclassed.

What is difference between protected and public?

Difference between Public and Protected

The data members and member functions declared public can be accessed by other classes too. The class member declared as Protected are inaccessible outside the class but they can be accessed by any subclass(derived class) of that class.

Is age a protected class?

Under the law, the protected class for age is people aged 40 and older. The federal law that governs age discrimination is the Age Discrimination in Employment Act, or ADEA. This law encourages employers to hire workers based on abilities and skill, rather than age, and prohibits age discrimination in the workplace.

Can we have protected method in interface?

Protected members of an interface

In general, the protected members can be accessed in the same class or, the class inheriting it. But, we do not inherit an interface we will implement it. Therefore, the members of an interface cannot be protected.

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Can we override protected method?

Yes, the protected method of a superclass can be overridden by a subclass. If the superclass method is protected, the subclass overridden method can have protected or public (but not default or private) which means the subclass overridden method can not have a weaker access specifier.

Can we access protected member outside the package?

While protected members can be accessed anywhere in the same package and outside package only in its child class and using the child class’s reference variable only, not on the reference variable of the parent class. We can’t access protected members using the parent class’s reference.

Is it bad to use protected?

Most of the time, it is dangerous to use protected because you break somewhat the encapsulation of your class, which could well be broken down by a poorly designed derived class.

What is a protected variable in a class?

Protected variables are those data members of a class that can be accessed within the class and the classes derived from that class. In Python, there is no existence of “Public” instance variables. However, we use underscore ‘_’ symbol to determine the access control of a data member in a class.

Does protected break encapsulation?

Putting protected on a member variable breaks encapsulation because now a derived class has access to the implementation details of the base class. It’s the same problem that occurs when you make a variable public on an ordinary class.