What is the role of default and protected access modifier in Java?

What is the role of protected access modifier in Java?

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 the difference between protected and default access modifier?

The protected specifier allows access by all subclasses of the class in question, whatever package they reside in, as well as to other code in the same package. The default specifier allows access by other code in the same package, but not by code that is in subclasses residing in different packages.

What is the role of protected access specifier?

The protected access specifier hides its member variables and functions from other classes and objects. This type of variable or function can only be accessed in child class. It becomes very important while implementing inheritance.

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How do you use a protected access modifier?

protected: The protected access modifier is specified using the keyword protected. The methods or data members declared as protected are accessible within the same package or subclasses in different packages.

What is the default access modifier in Java?

When we don’t use any keyword explicitly, Java will set a default access to a given class, method or property. The default access modifier is also called package-private, which means that all members are visible within the same package but aren’t accessible from other packages: package com.

What is the difference between default and protected in Java?

What are the differences between protected and default access specifiers in Java? The Protected access specifier is visible within the same package and also visible in the subclass whereas the Default is a package level access specifier and it can be visible in the same package.

Which has more visibility default or protected?

Contrary to how it might sound, protected is slightly less restrictive than the default level of accessibility. In addition to the default access afforded classes in the same package, protected members are visible to subclasses of the class, even if they are defined in a different package.

What is the difference between access modifiers and non access modifiers in Java?

Access modifiers are used to control the visibility of a class or a variable or a method or a constructor. Where as non-access modifiers are used to provide other functionalities like synchronizing a method or block, restricting the serialization of a variable etc.

What is the difference between access specifier and access modifier?

There is no difference between access specifier and access modifier in Java. They both mean the same. Access modifier is the new and official term used instead of access specifier. Java provides four access modifiers to set access levels for classes, variables, methods and constructors.

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What is protected access specifier in java?

Protected: The access level of a protected modifier is within the package and outside the package through child class. If you do not make the child class, it cannot be accessed from outside the package.

What are access modifiers in OOP?

There are three access modifiers: public – the property or method can be accessed from everywhere. This is default. protected – the property or method can be accessed within the class and by classes derived from that class. private – the property or method can ONLY be accessed within the class.

What is difference between private and protected access specifier?

Private = only members of the same class can access the function. Protected = Same as private but derived classes can also access.

Who can access a protected method in Java?

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.

Should I use protected Java?

In short, yes. Protected member variables allow access to the variable from any sub-classes as well as any classes in the same package. This can be highly useful, especially for read-only data.