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 .
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.