Core Java for the Impatient

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This concise guide reflects the latest enhancements in Java, updated through Java SE 17. With significant changes impacting core technologies and APIs, many outdated idioms are no longer necessary, and new features can enhance your programming effectiveness. Written by Cay S. Horstmann, this tutorial provides a clear pathway for learning modern Java, covering essential topics for developers. Key concepts include lambda expressions, streams, records, sealed classes, and advanced concurrent programming techniques. The content is organized into manageable sections for quick access and comprehension, featuring practical insights and sample code for immediate application. Learn to use modules for developing complex systems, work with the modularized Java API and third-party modules, and test code using the JShell Read-Eval-Print Loop (REPL). Gain better control over inheritance with sealed classes, express actions concisely through lambda expressions, and optimize data management with the Streams API. Explore new library features and threadsafe data structures for reliable concurrency, and benefit from API improvements in collections, input/output, regular expressions, and processes. Whether you're new to modern Java or an experienced developer, this guide will enhance your ability to write robust, efficient, and secure code.