Very solid review of data structures. In fact, I learned a lot of new things along the way like how to benchmark test Java code and how to properly use JUnit and other unit testing frameworks.

I really liked this course and the way it was taught. Although I am a CS major, I really learnt a lot of other stuff from this course apart from learning the core content of Data Structures.

This course helped understand the utility of data structures in software and how to benchmark algorithms in order to compare their performance so as to choose the most efficient algorithm

Are you good at data structures ? If not, this will be the best course to start with. You learn the data structure and implement right away in your project assigment. Very practical.

Very good and ordered exploration of using a variety of datastructures in the most efficient way possible. Good for anyone who wants to know more about Strings in Java specifically.

This is a great course. If you ever feared (like me) about implementations of linked-list, trees, tries, you should definitely join this! It would make these things much simpler!!!

Brilliant course. Learnt a lot about Data Structures like Trees, Tries, HashMaps etc. The best part was implementing the back-end for the text-editor project. Highly recommend it.

Amazing course, I learnt so much about interesting data structures and gained a new understanding of how important it is to choose the right data structure for a specific purpose.

Very good course. This is a very right course for Java learners, will be touched on all basic stuff that are needed in Java. I will highly recommend this course for my colleagues.

Well-organized lecture videos, which contain clear explanation of difficult concepts and very useful material to help me finish all programming assignments. HIGHLY RECOMMENDED!

A very good course for beginners , people having prior knowledge about data structures might found it a bit easy , anyways the projects were fun and was course was worth taking

The presentation of the material, multiple paths to choose depending on your skill level and actual use / application of what was being taught make this an excellent course !

A lot of very useful information. A perfect course for people familiar with the basics of java, and certainly a good continuation of the first course in the specialisation.

Very helpful course in helping to understand data structures and algorithms. This course will certainly prepare me well for my university degree in computer science

This is an excellent course with super awesome syllabus. It is taught in an engaging manner, with quizzes. It could have been more improved by adding in-video quiz.

Fantastic course and assignment ever if took hours to code the assignment, but rewarding afterward. Suggestion to relate future assignment to IOT application.

Excellent Course. This includes useful Data Structures. The Programming assignments are helpful. The instructors have done well to explain the concepts clearly.

A good overview of some fundamental data types. The programming assignments are fun and reasonably easy to implement if you have some CS background.

Although I learned Java before, I never used it after second year of university. It has been 2 years and this series are good refreshing courses

Super awesome! I wish I had taken this earlier in my job search. It makes a lot of the algorithms you find in tech interviews super intuitive.

Great class. I hope to take more advanced classes with you guys, if possible. Will you a series on complexity theory, dynamic programming etc?

I am halfway through this course. I already find it excellent. I usually dont feel like continuing for long but this I am gonna complete. ;-)

Very good course. Although it is not very challenging in my view but it tells you the right concepts about coding, testing and debugging.

Fantastic topics. Good explanations by Mia (instructor).

Keep doing a great work, guy! I have restored my confidence in programming now!

Never know anything about Data Structure before this course and it changes everything!!! a MUST for any CS student or professional.