[PDF] a final class can have subclass i.s. it can be extended

A final class cannot extended to create a subclass. All methods in a final class are implicitly final . Class String is an example of a final class. If you were allowed to create a subclass of String , objects of that subclass could be used wherever String s are expected.
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  • Can final classes be extended?

    Final classes cannot be extended or inherited. If we try to inherit a final class, then the compiler throws an error during compilation. We can simply define a final class using the final keyword and can write the class body code according to our needs.

  • Can a final class have a subclass?

    A class that is declared final cannot be subclassed. This is particularly useful, for example, when creating an immutable class like the String class.

  • Which class can be extended?

    subclass: A class that inherits from, or extends, an existing class. superclass: An existing class that is extended by another class.
  • Solution: A final class cannot extend other classes is false here. A correct answer is option (C). A final class cannot extend to other classes.
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