Week 1 Material

I am currently reviewing the course material from the beginning and making up the missing posts.

This week, I have learned a basic understanding of recursion, exception, and the design of a program.   I think the main topic of the week is the design of a new class. initiating a new class, finding the function method of the class are the most crucial things while building a new class. Meanwhile, I have also learned how to attach new method to a class.