Java multithreaded Programming-synchronizer Exchanger

Class Java.util.concurrent.Exchanger provides a synchronization point at which a pair of threads can exchange data. Each thread provides data to his partner thread through the portal of the Exchange () method, and receives the data provided by his partner thread and returns.
This is useful when running asymmetric activities, such as when a thread fills in buffer and another thread consumes data from buffer, the two threads can use exchanger to exchange data. This exchange is thread-safe for two threads when two threads exchange data through exchanger. Two threads wait until their program runs to this place exchanger. Then the data exchange, after the exchange is completed, each of the subsequent program flow.

Java multithreaded Programming-synchronizer Exchanger