Java Best Practices

A solid reference card for modern Java patterns and idioms. You get naming conventions,Enum-based singletons, factory and builder patterns with actual snippets, plus practical examples for Streams, Optional, and ExecutorService. The code samples use current Java syntax like switch expressions, which is good to see. It's basically the cheat sheet you'd want open when doing code review or onboarding someone to a Java codebase. The pattern examples are brief but real, not pseudocode. Worth having around if you're enforcing standards across a team or just want quick reminders of idiomatic ways to handle common scenarios without Googling.