97 Things Every Java Programmer Should Know Pdf Github Verified May 2026

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While you can't memorize all 97, the project generally orbits these vital pillars: 1. Mastering the JVM Understand Garbage Collection (GC) behavior. Learn how the JIT compiler optimizes code.

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Are you a Java developer looking to improve your skills and knowledge? Look no further than the GitHub repository for "97 Things Every Java Programmer Should Know". This free PDF resource is a collection of 97 concise tips and best practices for Java programmers, covering a wide range of topics from basic language fundamentals to advanced techniques and design principles.

Exceptions and error handling

• Fail fast and fail clearly: Detect errors early and throw informative exceptions.
• Use checked exceptions for recoverable conditions: Use unchecked for programming errors; document behavior clearly.
• Avoid exceptions for flow control: They are expensive and make code harder to read.

Garbage Collection Is Your Friend: Understanding how the GC works instead of fighting it.

Behavior Is "Easy"; State Is Hard: Understanding how to manage application state effectively is more critical than just writing functional logic.

that compile the most critical takeaways for quick reference. of the specific chapters focused on JVM performance 97 Things Every Programmer Should Know - [Henney].pdf