Java annotations were designed for metadata. Spring uses them for dependency injection. Lombok uses them for code generation. JPA uses them for ORM mapping. We use them to write entire programs. This ...
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As of scala-async 1.0, Scala 2.12.12+ or 2.13.3+ are required. Line 1 defines an asynchronous method: it returns a Future. Line 2 begins an async block. During compilation, the contents of this block ...
Java SE 14 (March 2020) introduced a limited form of pattern matching as a preview feature, which becomes a permanent feature in Java SE 16 (March 2021). The first phase of pattern matching is limited ...
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