In this assignment, we should:
In my solution, I created a LeafNode class which represents the node in the tree. By inheriting form the LeafNode, I created BinaryTree class.
WordCountBTree class privately inherits from BinaryTree to do word counting.
For more detail, please to the specification of the assignment on the instructor's Web page.
I am not done with this project yet, more are coming up...
1. After I finished writing the BinaryTree class, I realized that I should have implemented it differently. I should think recursively in the tree level, not just in the function level. I will work on that and update those links when I am done.
2. I am still debugging the WordCountBTree class, but generally it is working with the file I created myself.