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

2,157 ratings
440 reviews

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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326 - 350 of 431 Reviews for Data Structures and Performance

By Gábor C

Jul 25, 2016

Good course!

By dipankar

Jan 31, 2016

Great course

By Adam M D

Jan 30, 2016

Very good :)


Jun 21, 2020

NIce course

By Gabriel F

Feb 22, 2017



Nov 25, 2015


By Cj C

Jul 21, 2019



Nov 21, 2020

very good

By MR. W A

Jul 14, 2020

thank you

By Vladyslav B

Feb 10, 2020


By Bekzod S

Dec 4, 2019


By Johnny R

Jun 21, 2019


By Mohammed B

Apr 24, 2019

very good

By Abhishek K

Nov 23, 2016

very Good

By Kunal B

Oct 9, 2016


By Paulo H S L

Feb 17, 2016

very good

By Alexey P

Jan 28, 2016

very cool

By Ilya B

Jan 7, 2016

I like it

By Saleem U B

Dec 26, 2015

Great one

By Denis G

Dec 22, 2015

Thank you

By José A T F

Dec 30, 2020


By Noah D G

Dec 23, 2018

Loved it

By Abdalla M

May 23, 2017

Loved it

By namnguyen

Nov 12, 2015


By xiaojing

Nov 10, 2017

Great !