- Can protected class be inherited in Java?
- Can we override a protected method in Java?
- Can protected members be inherited?
- Can constructor be private?
- What is the difference between private and protected inheritance?
- Can we override static method?
- Why we Cannot override static method?
- What is a protected method in Java?
- What is the difference between private and protected in Java?
- Are constructors inherited?
- How can a protected member can be accessed?
- Which method Cannot be overridden?
Can protected class be inherited 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.
If you make any constructor protected, you cannot create the instance of that class from outside the package..
Can we override a protected method in Java?
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 protected members be inherited?
Its only difference occurs in fact with inheritance: When a class inherits another one, the members of the derived class can access the protected members inherited from the base class, but not its private members. … With protected , all public members of the base class are inherited as protected in the derived class.
Can constructor be private?
Yes, we can declare a constructor as private. If we declare a constructor as private we are not able to create an object of a class. We can use this private constructor in the Singleton Design Pattern.
What is the difference between private and protected inheritance?
protected inheritance makes the public and protected members of the base class protected in the derived class. private inheritance makes the public and protected members of the base class private in the derived class.
Can we override static method?
Can we Override static methods in java? We can declare static methods with the same signature in the subclass, but it is not considered overriding as there won’t be any run-time polymorphism. Hence the answer is ‘No’.
Why we Cannot 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).
What is a protected method 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. Subclasses of same packages. Different classes of same packages.
What is the difference between private and protected in Java?
The private modifier specifies that the member can only be accessed in its own class. 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.
Are constructors inherited?
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.
How can a protected member can be accessed?
Protected members in a class are similar to private members as they cannot be accessed from outside the class. But they can be accessed by derived classes or child classes while private members cannot.
Which method Cannot be overridden?
A method declared final cannot be overridden. A method declared static cannot be overridden but can be re-declared. If a method cannot be inherited, then it cannot 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.