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 override the protected method as private?
So the answer is, yes, protected methods can be overridden by a subclass in any package. … Thus, when overriding protected method, the subclass can choose to override it with protected or public access modifier, but no a weaker one such as private or default.
Can Protected be extended?
Protected methods can only be accessed by the class which extends the class where the method lies. You cannot create a object of sub-class and invoke super-class protected method. However you can invoke a method of subclass using a object which in turn invokes super-class protected method.
Can you call protected methods in Java?
Protected keyword in Java refers to one of its access modifiers. The methods or data members declared as protected can be accessed from: Within the same class.
Can we extend protected class in Java?
class is defined protected —> it cannot be extended from outside package(not visible). And if it cannot be extended then it is meaningless to keep it as protected, because then it will become default access which is allowed.
Can we override protected?
Yes, the protected method of a superclass can be overridden by a subclass.
Can we override default method in Java?
It is not mandatory to override the default method in Java. If we are using Only one interface in a Program then at a time we are using only a single default method and at that time Overriding is not required as shown in the below program: Java.
Can a subclass member be overridden?
A subclass within the same package as the instance’s superclass can override any superclass method that is not declared private or final. A subclass in a different package can only override the non-final methods declared public or protected.
Can we declare a class as protected in Java?
No, we cannot declare a top-level class as private or protected. It can be either public or default (no modifier).
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 an interface extend another interface?
An interface can extend other interfaces, just as a class subclass or extend another class. However, whereas a class can extend only one other class, an interface can extend any number of interfaces. The interface declaration includes a comma-separated list of all the interfaces that it extends.
Can we access protected member outside the package?
Yes u can. protected member can be access within the package and outside the package but within the child classes. we can use child class to use protected member outside the package but only child class object can access it.
Can we access protected member outside the class in Java?
A protected member or constructor of an object may be accessed from outside the package in which it is declared only by code that is responsible for the implementation of that object. (“code that is responsible for the implementation of that object” — e.g., code in a subclass.)
Does a subclass inherit both fields and methods?
A subclass inherits all the members (fields, methods, and nested classes) from its superclass. Constructors are not members, so they are not inherited by subclasses, but the constructor of the superclass can be invoked from the subclass.
Can we change access modifier overridden method in Java?
Yes, an overridden method can have a different access modifier but it cannot lower the access scope. Methods declared public in a superclass also must be public in all subclasses. … Methods declared private are not inherited at all, so there is no rule for them.
Can constructor be private?
Yes. Class can have private constructor. Even abstract class can have private constructor. By making constructor private, we prevent the class from being instantiated as well as subclassing of that class.