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Machine coding and class design

Score your own design on the reviewer's eight rows.

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• Lesson · 37 minMachine coding and low-level designThe machine-coding round in Java 21: what you hand over, SOLID and twelve patterns on one page, a vague prompt, one complete tested parking lot driven from stdin, the new-requirement follow-up, a seat hold as a state machine, a tic-tac-toe build with undo, concurrency with one lock and with none, a 45-minute design-only script, a worked Staff review, the Staff bar with a review drill, and a timed drill.

Practise it out loud

Say it with a clock running and see where you went quiet or ran long.

Practise: Low-level design (45 min)

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Notes for step 7