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Learner Reviews & Feedback for Data Structures and Performance by University of California San Diego

2,188 ratings

About the Course

How do Java programs deal with vast quantities of data? Many of the data structures and algorithms that work with introductory toy examples break when applications process real, large data sets. Efficiency is critical, but how do we achieve it, and how do we even measure it? This is an intermediate Java course. We recommend this course to learners who have previous experience in software development or a background in computer science, and in particular, we recommend that you have taken the first course in this specialization (which also requires some previous experience with Java). In this course, you will use and analyze data structures that are used in industry-level applications, such as linked lists, trees, and hashtables. You will explain how these data structures make programs more efficient and flexible. You will apply asymptotic Big-O analysis to describe the performance of algorithms and evaluate which strategy to use for efficient data retrieval, addition of new data, deletion of elements, and/or memory usage. The program you will build throughout this course allows its user to manage, manipulate and reason about large sets of textual data. This is an intermediate Java course, and we will build on your prior knowledge. This course is designed around the same video series as in our first course in this specialization, including explanations of core content, learner videos, student and engineer testimonials, and support videos -- to better allow you to choose your own path through the course!...

Top reviews


Oct 12, 2017

Great into to Java, instructors have clearly put thought in to the format with the choose your own learning style videos, and additional coverage where it may be needed. These have been very helpful.


Dec 18, 2015

The course curriculum is well designed and teaches students the basic data structures needed to be a successful software engineer. The project is good, and the weekly assignments are challenging.

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226 - 250 of 439 Reviews for Data Structures and Performance


Mar 20, 2020

The best course i have ever taken in my life.

By TerryTang

Jun 30, 2016

good course,i get much knowledges about java

By ahmed m

Dec 9, 2015

Loved it. The assignments were fun to solve.

By Stanislav R

Dec 31, 2016

That's greate course. Strongly recommended.

By Mostafa M K

Apr 9, 2016

The most awesome course I have ever joined.

By Ryan S

Dec 28, 2015

Amazing lectures and practical assignments.

By Saurabh P

Aug 1, 2020

Great course with challenging assignments.

By Lachezar

Apr 14, 2017

Well-structured course with great content.


Apr 21, 2016

Perfect course for intro of data structure

By Sangam S

Jan 29, 2016

Loved the assignment, challenging and fun.

By Ankur A

Apr 18, 2021

Good course to practice Java programming.


Oct 18, 2020

A must do course to brush up your skills.

By Wen J

Jun 26, 2020

Really useful course! I do enjoyed a lot!

By Nikita

Jul 4, 2020

Good Course to learn and test the skills

By Abhishek t

Oct 10, 2018

One of the best courses on the internet.

By Randall G

Oct 3, 2016

Best online course I have taken to date.


Feb 12, 2016

Very interesting and really well taught!

By Max

Jun 28, 2017

Excellent course! Strongly recommended!

By Keval S

Sep 28, 2016

Thank you!

Please keep up the good work.

By Christo P

Jun 21, 2016

Wow, I learned way beyond expectations!


Oct 15, 2019

Very interested and informative source

By Alicia B

Nov 9, 2017

Very good course, I really enjoyed it.

By Erick A L

May 2, 2016

One of the best courses I have found!.

By Diana S

Oct 12, 2017

Very easy to follow and very helpful

By Deleted A

Jul 9, 2016

Fantastic, enjoying and challenging.