1. Explain the “is a” rule of inheritance. 2. What is the purpose of the keyword extends? 3. What effect does the keyword final have on a method member? 4. What is a superclass? 5. What is an abstract...

1. Explain the “is a” rule of inheritance.

2. What is the purpose of the keyword extends?

3. What effect does the keyword final have on a method member?

4. What is a superclass?

5. What is an abstract class?

6. What is the Object class?

7. How can you prevent a class from being inherited?