Programming tutorials

Choose a subject and follow its lessons.

Practical guides to prompting, everyday tasks and AI-assisted coding.

Operation contracts, checked Python programs and connected learning resources.

Java interview reasoning explains selected methods, shared state, operation costs and the behavior that survives a failure.

Choose storage and access patterns by invariants, time, space, and update workload.

Java exercises test a stated behavior with accepted inputs, rejected inputs and checks that fail when the behavior is violated.

Operation contracts, checked Python programs and connected learning resources.

Operation contracts, checked Python programs and connected learning resources.

A complete Java example supplies an executable source unit, its declared release, expected behavior and the limits of its model.

Relational models, SQL, normalization, transactions and indexing.

Document setup, text, links, and element selection.

Operation contracts, checked Python programs and connected learning resources.

Java quizzes provide local self-checks of language rules, API contracts and algorithm invariants with explained answers.