What does the protected modifier accomplish? The protected modifier establishes a visibility level (such as public and private) that takes inheritance into account. A variable or method declared with protected visibility can be referenced by name in the derived class, while retaining some level of encapsulation.
What is the purpose of the modifier protected?
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 does the protected modifier accomplish Why is the Super reference important to a child class?
Protected visibility allows access from any class in the same package. Why is the super reference important to a child class? can be used to call the parent’s constructor, which cannot be invoked directly by name. It can also be used to invoke the parent’s version of an overridden method.
What does Protected method mean in Java?
In Java, protected means that the member can be accessed by any class in the same package and by subclasses even if they are in another packages.
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.
How can a protected modifier can be accessed?
How can a protected modifier be accessed? 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.
How can the final modifier be used to restrict inheritance Why would you do this?
How can the final modifier be used to restrict inheritance? The final modifier can be applied to a particular method, which keeps that method from being overridden in a child class. It can also be applied to an entire class, which keeps that class from being extended at all.
What are protected methods?
A protected method is like a private method in that it can only be invoked from within the implementation of a class or its subclasses. It differs from a private method in that it may be explicitly invoked on any instance of the class, and it is not restricted to implicit invocation on self .
Can we override static method?
Static methods cannot be overridden because they are not dispatched on the object instance at runtime. The compiler decides which method gets called. Static methods can be overloaded (meaning that you can have the same method name for several methods as long as they have different parameter types).
Can we override protected method as public?
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.