
UdemyFast software starts with smart data structures—arrays that fit the job, trees that search efficiently, hash tables that scale. This course teaches the fundamentals: arrays and linked lists, stacks and queues, heaps and binary trees, hash tables and specialized trees like AVL and Fenwick. Each structure gets animated explanations showing how it works visually, then working code in Java so you see implementation immediately. You'll learn not just what each structure is, but when and why to use it—the thinking that separates efficient code from elegant code. Hands-on exercises and multiple-choice questions ensure real fluency. Whether you're preparing for technical interviews or improving your foundation as a programmer, understanding data structures is the difference between hacking solutions and building systems.
Data structures are amongst the most fundamental ingredients in the recipe for creating efficient algorithms and good software design. Knowledge of how to create and design good data structures is an essential skill required in becoming an exemplary programmer. This course will teach you how to master the fundamental ideas surrounding data structures.
Learn and master the most common data structures in this comprehensive course:
Static and dynamic arrays
Singly and doubly linked lists
Stacks
Queues
Heaps/Priority Queues
Binary Trees/Binary Search Trees
Union find/Disjoint Set
Hash tables
Fenwick trees
AVL trees
Binary Indexed trees
Sparse tables
Course contents
This course provides you with high quality animated videos explaining a multitude of data structures and how they are represented visually. You will learn how to code various data structures together with simple to follow step-by-step instructions. Every data structure presented will be accompanied by some working source code (in Java) to solidify your understanding of that particular data structure. I will also be posting various coding exercises and multiple choice questions to ensure that you get some hands on experience.
Price
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Not the best price we've seen. The lowest we've recorded is $11.99 on 3 Aug.
This is what we recorded in US pricing — not every price this course has ever had, and prices differ by country.




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