Data Structures for Coding Interviews in Java

Data structures come up in almost every technical interview, and for good reason. The way you store and access data has a direct impact on how efficient your solution is, and interviewers know it. But knowing what a linked list is and knowing when to reach for one under time pressure are two completely different things. I spent years building large-scale systems at Microsoft and Meta, and I interviewed hundreds of engineers at both companies. The same problem kept recurring: candidates who had clearly studied hard but froze when a familiar concept appeared in an unfamiliar problem. They knew the theory. They just could not see the pattern fast enough. That is what this course is built around. You’ll work through the data structures that come up most in Java interviews, including arrays, linked lists, stacks, queues, trees, heaps, graphs, and hash-based structures, and more importantly, you’ll learn to recognize the patterns behind the problems so you do not start from scratch every time you see something new. If you want to enter your next Java interview feeling prepared, confident, and ready to perform, this course is a great place to start.