Multiple Inheritance

Question 1

If a class implements an interface Z, which extends interfaces X and Y, and each of those defines a constant W… seeing as they are providing the same data member, how do we tell the difference between them?

Answer 1

Question 2

What are the 3 ways we can implement multiple inheritance in Java?

Answer 2

1. Use interfaces: a class can implement multiple interface in Java
2. Duplicate code: you can inherit from one of the two classes you need to be a child of, and duplicate the code of the other
3. Use limitation: insert objects lower into a hierarchy, and override methods that you don’t want with empty bodies.

Question 3

How do you get over name ambiguity in C++ with multiple inheritance?

Answer 3

Question 4

What would happen as a result of the attached code?

Answer 4

Question 5

What would happen as a result of this code?

Answer 5

Question 6

Where are A, B and C’s entry points?

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

In c++ how doe inheriting a class virtually work?

Answer 9

Question 10

Answer 10

Question 11

What does virtual inheritance in C++ require?

Answer 11

Question 12

How does virtual + friend work?

Answer 12