Answers for Lab 4

1. What is the first suggestion made by Eclipse to fix the compilation error?

2. Why are there compilation errors inside method add?

3. What are the disadvantages of declaring all instance variables and methods in a class
as static?

4. Explain why the list  for network 1 includes 3 friends and why the list for network 2 also
includes the same 3 friends.

5. How many non-static objects of the class SocialNetwork can be created?

6. Explain how the clearFriends() method can be implemented with only one assignment. Why is it 
not neccessary to set every entry of friendList to null?

7. Is the list in network empty?