[PDF] a final class can have instances

You cannot create an instance of an abstract class using the new operator. A final class can be extended. An abstract class can be extended.
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  • Can we create instance of final class in another class?

    final classes can extend other classes but cannot be extended from. You cannot declare a class that extends from a final class. abstract classes can only be extended by other classes and not used directly to create objects. final classes are meant to be uninheritable.

  • Can a final class extend another class?

    A final class can extend other classes; It can be a subclass but not a superclass. When creating an immutable class, the final class is the best answer. The final class is a declaration that says it's final, i.e., this class has no subclass & can not be extended further.26 jui. 2023

  • How do I create an instance of final class?

    A class can be made final by using the final keyword. The final class cannot be inherited and so the final keyword is commonly used with a class to prevent inheritance.
  • The main purpose of using a class being declared as final is to prevent the class from being subclassed. If a class is marked as final then no class can inherit any feature from the final class. You cannot extend a final class. If you try it gives you a compile time error.
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