Use of Exchanger

Two threads can exchange synchronization points of objects. Every thread is enteringexchange Method, and accept the objects returned by other threads.

It is used to exchange data between two people. After a transaction is completed, each person wants to exchange data with the other party. The first person who obtains the data will wait until the second person receives the data, in order to exchange data with each other.

Constructor Summary
Exchanger()

Method Summary
V	Exchange(V x) Interrupted), And then transmits the given object to the thread and receives the object of the thread.
V	Exchange(V x, long timeout, TimeUnit unit) Interrupted, Or exceeds the specified wait time), and then transmits the given object to the thread, while receiving the object of the thread.

 

ExecutorService service = Exchanger exchanger = service.exe cute (Thread. sleep () (Math. random () * 10000 String data1 = "zxx" System. out. println ("Thread" + Thread. currentThread (). getName () + "changing data" + data1 + "String data2 = System. out. println ("Thread" + Thread. currentThread (). getName () + "the returned data is" +} service.exe cute (Thread. sleep () (Math. random () * 10000 String data1 = "lhm" System. out. println ("Thread" + Thread. currentThread (). getName () + "changing data" + data1 + "String data2 = System. out. println ("Thread" + Thread. currentThread (). getName () + "the returned data is" + }}

The running result is as follows:

Thread pool-1-thread -- 1-thread -- 1-thread -- 1-thread-2 The data returned is zxx