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45+ curated questions with the same answer shape every time: quick recap, deep dive, pitfalls, and follow-ups. Coverage includes ioc container, dependency injection, di types, autowired, and more.
Suggested path
Topics follow a teaching order. Each answer ends with a clear Next question control so you can move forward without hunting the list.
Spring Core and DI (fresher level) introduces the IoC container. This module is an elevation arc: it opens with the IoC container (the core idea — inversion of control), then dependency injection and the DI types (constructor, setter, field). @Autowired and component annotations follow at the mechanics tier, then bean definitions and scopes. The Spring annotations overview closes the module.
Full catalog
Topics are ordered for learning. Within each topic, rows are numbered 1–45 globally so you always know where you are. Collapse topics if you want a lighter view — use Expand all when you need the full list again.
Numbers 1–45 follow the order we recommend — click any row to open the full answer, or use the sticky Next link at the bottom of each page to go Q1 → Q45.