Dong Yu thinks this is interesting: If a variable is marked as volatile, every time the variable is used it must be read from main memory. Similarly, every time the variable is written, the value must be stored in main memory. From 3. Data Synchronization from Java Threads, 3rd Edition by Henry Wong, Scott Oaks Publisher: O'Reilly Media, Inc. Released: September 2004 Note the characteristics of volatile varabile Share this highlight http://www.safaribooksonline.com/a/java-threads-3rd/42031/ Twitter Facebook Google Plus Email Get Instant Access Now Start a Free Trial Learn about Safari for Business Have an account? Sign in. Minimise Unlock the rest of Java Threads, 3rd Edition and 30,000 other books and videos By clicking this box, you confirm that you have read and agree to the terms and conditions of our Membership Agreement, and you understand that when your trial period ends, you will be required to provide billing information if you wish to continue using the service. Unlock the rest of this book Start a Free 10-Day Trial loading Learn about Safari for Business Have an account? Sign in.