When we declare a method synchronized then how it is known by second thread that the synchronized section of code used by the first thread is completed and how second thread can use that synchronized section of code?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
When we declare a method synchronized then how it is known by second thread that the synchronized section of code used by the first thread is completed and how second thread can use that synchronized section of code?
Java uses an internal construct called a monitor to manage synchronization, basically when thread 1 enters a synchronized method, it takes control of the monitor, similarly when it is finished it releases the monitor. Any threads that arrive while the monitor is currently held are blocked until the monitor is released. Then they enter the synchronized method.
here is more information on monitors:
http://en.wikipedia.org/wiki/Monitor_(synchronization)