We cover syntax, data types, flow control, functions and classes, encapsulation and inheritance, working with collections, exception handling, file read/write, asynchrony basics via tasks, and key testing approaches. We also emphasize code style: naming, modular breakdown, comments, readability.

Yes—at a practical level. We examine task execution patterns, awaiting results, typical synchronization pitfalls, and ways to avoid them. For testing, we focus on writing checks, structuring cases, and handling edge scenarios.

Send an email describing the issue: what you tried, what happened, any error text, and the last step taken. Include a minimal code snippet that reproduces the problem. We’ll reply with guidance and point to the next checks. This approach speeds up troubleshooting and keeps focus on the core cause.

Yes. You can work through sections in the order that suits you and come back whenever you need a refresher. Keep notes—brief bullet points, example references, and open questions. This makes navigation easier and speeds up recall after breaks.