Core Java, Volume I

Experienced programmers who want to understand Java properly, rather than copy snippets until something compiles, have long turned to Cay Horstmann. Now in its thirteenth edition and updated through Java 21, this first volume works through the language's foundations with hundreds of short, honest example programs that make sound starting points for your own code. Coverage runs from object-oriented design, interfaces and inner classes to generics, collections, lambda expressions, exception handling, reflection, annotations and the Java Platform Module System.

Newer features get proper attention too: sealed class hierarchies and pattern matching for structured data, JShell for quick experiments, and a thorough look at concurrency on multicore machines. Networking, security and advanced UI work are left to the companion Volume II. A solid, serious reference for the developer who wants Java explained by someone who knows it inside out.