When you declare method as final you can t?
The compiler does not throw any error. If we declare any method as final by placing the final keyword then that method becomes the final method. The main use of the final method in Java is they are not overridden. We can not override final methods in subclasses.
What happen if we declare a method as final?
You use the final keyword in a method declaration to indicate that the method cannot be overridden by subclasses. The Object class does this—a number of its methods are final . A class that is declared final cannot be subclassed.
Can we declare a main () method final?
The short answer is Yes. You can declare main method as final. without any compile error.
When to use final in a virtual function?
Typically final will not be used on the base class’ definition of a virtual function. final will be used by a derived class that overrides the function in order to prevent further derived types from further overriding the function.
Can a derived class override a virtual method in C + + 11?
In C++11, you can use final to prevent a derived class from overriding a virtual method; it means though that you are forced to introduce a new hook, example:
Can a method be overridden by a non-virtual method?
The overriding member in the most derived class is called, which might be the original member, if no derived class has overridden the member. By default, methods are non-virtual. You cannot override a non-virtual method. You cannot use the virtual modifier with the static, abstract, private, or override modifiers.
How to use virtual method in C #?
virtual (C# Reference) 1 Remarks. When a virtual method is invoked, the run-time type of the object is checked for an overriding member. 2 Example. In this example, the Shape class contains the two coordinates x, y, and the Area () virtual method. 3 C# language specification. For more information, see the C# Language Specification.