Overall, this course is pretty good and it helps to learn the basics of Java Interfaces. However, Week 3 was very confusing and discussion posts were not at all helpful in the forums. I am having a lot of trouble with the random text generator (assignment one) and I can not move on until I get that one method correctly. I was not able to understand the getRandomText() method, therefore it was very difficult to do MarkovFour. Especially, when MarkovOne was not even working. The readings had VERY confusing wording and I believe the grammar caused confusion. However, it could have been a typo. That is why I gave this specific course a 3 star rating.

instructive !

SuperB!

Excellent course, well designed excercises, good motivating lectures.

As the previous 3 Courses, very well-thought off and practical - this is exactly what I wanted from a course.

Super course!

Well designed, structured, with a sense of humor :)

To be specific, with this course you are able to write complicated programs step by step with linearly growing difficulty.

Thanks!

Good class and good education. My only objection is that some of the practice tests seemed unusually difficult.

Enjoyed this course and the examples used to learn algorithms (earthquakes data and predictive text). I did find that week 3 had a lot of work packed into one week. Otherwise, interesting and fun course.

very helpful in understanding how to write a logic to a complex program easily.

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.

Pros:

There are a lot of interesting subjects - the basics of the cryptography (the Caesar cipher, the vigenere cipher), the practical use of the markovs model to generate funny texts, some basics with image filtering and if you dont use course IDE blueJ and duke libraries and found how to do this thing with java core - it will be more profitable.

Cons:

Using custom libraries is very bad for students. We must study java core not some custom libraries.

BlueJ also is a bad choise, even the notepad or the vim are better for understanding the compilation process.

Several tasks and questions are hardly to understand since they are badly formulated.

Also there is no peer reviewed assignments.

Decent. Moved kinda slowly, but it's for beginners, so what did I expect? This is a nice progression of classes for someone with no previous programming experience; if you have previous experience, in another language, you may wish to start with an intermediate course.

Difficult and challenging, but worth the struggle.

very interesting material, thanks for your great effort.

Sometimes the quiz instruction is not very clear. Sometimes, I could get the assignment results, pass the practice quiz, but couldn't pass the review quiz.

good intro for programming in java