Programming tutorials

Choose a subject and follow its lessons.

Explore guides for this subject.

Explain a concept, demonstrate it and discuss a tradeoff.

Data structures and algorithms from arrays to dynamic programming.

Solve small tasks, then compare against an example answer.

Relational models, SQL, normalization, transactions and indexing.

Read a complete small program and predict its output.

Structure web pages with semantic, accessible HTML.

Check understanding and review an explanation for each answer.

Use the basics in a small project with observable behavior.

Keep common syntax close while solving an exercise.

Use Java to implement and reason about basic algorithms.

Choose a collection based on the behavior you need.