Data Structure Concept Revision
#1
2026/05/11
系列 — Data Structure
Java Generics
#2 2026/05/12
Abstract Data Types & The Bag
If you're new to data structures, the very first hurdle isn't a fancy algorithm — it's a way of thinking. Programmers separate what a thing does from how it's built. That's the whole idea behind an Abstract Data Type (ADT), and once it clicks, the rest of the course starts to feel much more organized.
#3 2026/05/12
Stack
#4 2026/05/13
Linked Lists & Doubly Linked Lists
If you've ever used ArrayList in Java and wondered what the other list — LinkedList — is doing differently, this post is for you. We're going to walk through what linked lists are, why they exist alongside arrays, and how to build one from scratch. Then we'll level up to doubly linked lists, which are a small twist on the idea with surprisingly nice properties.
#5 2026/05/13
Queues
If you've ever stood in line at a bubble tea shop, you already understand a queue. That's basically the whole idea — but in code, this simple concept turns into one of the most useful data structures you'll meet. In this post we'll walk through what a queue is, how to implement one in Java, and then level it up into a priority queue.
#6 2026/05/14