In-depth architecture analyses, low-level design patterns, and the engineering trade-offs behind production systems.

Design a Tic-Tac-Toe game in Java with board state, players, moves, and win detection.

Model a vending machine in Java with inventory, money, selection, and state pattern.

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Structured Engineering Tracks
Explore guided interactive courses featuring real-time architecture visualizers, dependency-aware roadmaps, and code sandboxes.
Design elevators in Java with requests, scheduling, movement, and state transitions.