This version comes with the following changes:
1.On the TreeIntSet-the containsVerbose now works, following a change in where the println statements were placed
2.Another implementation of IntSet interface using a linked list call ListIntSet has been created
Note: For the purposes of addition, recursion could not be used as it would reset the this value to the value calling the function recursively. Therefore an iterative(while) solution was used
An example of how a constructor needs to be added for the super class to be initialized in the descendant class
A simple example of inheritance with multiple classes
Next version-need to generate JavaDocs
Committing hte full folder of exercises so far