java基础Exchanger的使用

package com.java.thread.test;

import java.util.concurrent.Exchanger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;


public class ExchangeerTest {
    private static final Exchanger<String> exgr=new Exchanger<>();
    private static ExecutorService threadPool = Executors.newFixedThreadPool(2);

    public static void main(String[] args) {
        Future<?> r1 = threadPool.submit(new Runnable() {
            @Override
            public void run() {
                String A = "银行流水A";
                try {
                    String B=exgr.exchange(A);
                    System.out.println("B:"+B);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            });
       threadPool.submit(new Runnable() {
                @Override
                public void run() {
                    String B = "银行流水B";
                    String A = null;
                    try {
                        A = exgr.exchange(B);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println("A和B是否一致：" + A.equals(B) + ",A录入的是：" + A + ",B录入的是：" + B);
                }
            });
    threadPool.shutdown();
    }
}

Java基础-Exchanger的使用