| Review Questions |
6.1 |
Which statements are true?
Select the two correct answers.
In Java the extends clause is used to specify inheritance. The subclass of a non-abstract class can be declared abstract. All the members of the superclass are inherited by the subclass. A final class can be abstract. A class in which all the members are declared private, cannot be declared public.
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6.2 |
Which statements are true?
Select the two correct answers.
Inheritance defines a has-a relationship between a superclass and its subclasses. Every Java object has a public method named equals. Every Java object has a public method named length. A class can extend any number of other classes. A non-final class can be extended by any number of classes.
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