Books like Java performance by Charlie Hunt

Learn the fundamentals and practical techniques for building reliable concurrent Java applications, covering thread safety, synchronization, and modern concurrency APIs.

None of the JavaScript libraries today has a more impressive track record than Google Closure, the tool suite used for Gmail, Google Docs, and Google Maps. Closure: The Definitive Guide has precisely what you need to get started with these tools, including valuable information not available publicly anywhere else. Written by Michael Bolin – a former Google engineer who made many contributions to Closure – this guide explains the library's design and offers code examples that illustrate best practices. You'll also learn how to minify your JavaScript code with the compiler, and learn why the combination of the library and the compiler is what sets this toolkit apart from other JavaScript libraries. * Discover several ways to use the compiler as part of your build process * Learn about Closure type expressions, primitives, and common utilities * Understand how classes and class-based-inheritance are emulated in Closure * Get the best performance from Closure by learning about event management * Learn the life-cycle of a UI component * Get best practices for using Closure Templates Test and debug your JavaScript code.

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Getting the Most Out of Your Code

A practical guide to test‑driven and acceptance‑test‑driven development, covering techniques, tools and design patterns for testing Java and Java EE code.