Java Data Structures & Algorithms + LEETCODE Exercises (Udemy.com)

Great visualization but some assumptions are made during the tutorial of complex things at times which break the flow of learning and force me to ask ChatGPT and understand

I am thoroughly enjoying your course. Your teaching style is engaging, structured, and beginner-friendly. Your explains not only how algorithms and data structures work, but also why they are important and when to use them. The hands-on examples and coding exercises have helped me build a strong foundation in DSA. Highly recommended for anyone looking to strengthen their programming and problem-solving skills.

Excellent course! The lessons were clear, engaging, and very informative. The instructor was knowledgeable and supportive, making even difficult topics easy to understand. I learned a lot and feel much more confident in my skills. I would highly recommend this course to other students looking for a high-quality learning experience.

I wish I had these lectures 15 years ago when I was in college! Back then, we learned Data Structures and Algorithms the hard way, and everything felt super confusing. The visual representations in this course are outstanding—they make it incredibly easy to relate to complex concepts and truly understand them. I highly recommend this course to everyone!

Overall, it’s very good quality — truly quality over quantity. The videos are shorter, but the concepts are explained clearly and are easy to understand. It saves a lot of time, and you can use that extra time to focus on the exercises. At first, the exercises felt difficult, but in the end everything became clear. My problem-solving skills improved a lot, and understanding how to approach problems — especially LeetCode-style questions — became much easier.

Overall, this is a great course. The video explanations are excellent. Unfortunately, not every problem has a video, there is a tips and solution, but they're not as good. Some topics don't have any problems at all (graphs, dynamic programming). The theory is explained really well. This course really helped me to refresh and structure my knowledge of singly linked lists, hash maps, queues, stacks, trees and different types of sorting algorithms. General advice: it's always better to try writing the code yourself before watching the video.

Great course for people who didnt pay attenttion to the data structure class , and also those who werent taught about linkedlist and binary trees , the course makes clear the differences between value types and reference types , and the graphic explanations are just amazing, worth taking it

I always used to fear DSA because I could never visualise the complex steps that took place. I never knew it could be made this simplified to understand using animations. For the first time I could finally understand the DSA concepts. The instructor is too good! His teaching pace remains constand and smooth. Highly recomment this course!

I took this course to strengthen my DSA skills for coding interviews, and I am very satisfied with the experience. The instructor’s teaching style is excellent, and the biggest differentiator is the use of animations, which truly make abstract concepts such as Big O, recursion, trees, heaps, and dynamic programming much easier to understand. The content is well structured, starting from the basics and progressing naturally, which makes it suitable both for beginners and for more experienced developers who want a solid review. The coding exercises and LeetCode-style problems are a major highlight, as they help reinforce the concepts in a very practical way. I also appreciated the strong focus on Java, with clear explanations, clean code, and constant attention to time and space complexity analysis. The only reason I did not give 5 stars is that some topics could be explored in more depth (especially graphs and more advanced optimization cases), and a few sections could benefit from additional complex examples. Overall, this is an outstanding course, well above the average on Udemy, and I would highly recommend it to anyone who wants to learn or solidify Data Structures & Algorithms in a visual, practical, and efficient way.

This course is a great deep dive into data structures and algorithms in Java. The visualizations are especially helpful and make everything much easier to understand. I really appreciate the author’s effort in putting so much work into that part. While the course might not yet be fully comprehensive for people preparing for algorithmic interviews (some patterns that make algorithms efficient, like sliding window, etc. are not present), it’s clear that the course is actively evolving and improving - even while I was studying it. For me, it’s already a great starting point to learn the basics in my native language (Java), and I’ll definitely revisit some parts later to refresh my knowledge and check out new updates.