volatile Keyword

Understanding the volatile keyword in Java is essential for any developer who wants to write efficient multithreaded applications. While synchronization mechanisms like synchronized blocks and locks ensure thread safety by controlling access to shared resources, the volatile keyword serves a different purpose. It allows threads to read and write to a variable directly from main memory, rather than relying on cached values.

This can prevent certain visibility issues that arise in multithreaded contexts, making it a valuable tool in your concurrency toolbox.