Java Abstractions and Core APIs
Based on the original Java notes, this post keeps the material on collections, IO, reflection, proxies, and SPI.
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This is a short English draft for the Chinese article “Java 的抽象边界：集合、IO、反射、代理与 SPI”. The full translation is not finished yet, but this page is enough to verify the bilingual blog flow.
Draft Summary#
This draft highlights a few Java backend interview themes such as abstraction boundaries, concurrency, and practical engineering tradeoffs.
Continue with the Chinese version if you want the complete notes, examples, proofs, and code snippets.