The third week was a great challenge and, while frustrating at times, gave me more to think about as I'm developing as a programmer.

Amaaaaaaaaaaaaaaazing.

great!

Nice course which logically ends the series of four. Finally explains why different duke.edu libraries were used as well as BlueJ, which seemed to be strange choise at the beginning. I've finally understood why interfaces and abstract classes are important and how to use it. I decrease the mark to 4 only due to week 3 tests unclarity around hashmap - I've never worked it out how to get to the test results on hashmap size - it was working fine on small samples, but not matching the answers which were in the quiz for the big files which took a lot of time from me and didn't bring satisfaction.

You need to explain Exceptions and interfaces more deeply

Near the end of the course it was very difficult to get programs working exactly as intended. I felt the instructions could have been clearer, especially in Week 3's assignments.

Fantastic course. Thanks to the instructors and students who helped put this coursework together. I've learned a tremendous amount about OOP and software design. Will continue on with the capstone couse to complete the specialization. Thank you.

Awesome course. These professors are great. They are from Duke University

great course recommend it so much

The practice examples and content are top notch. Learning about markov models was particularly interesting.