多线程并发库工具类Exchanger

import java.util.concurrent.Exchanger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
publicclass ExchangerTest {
   publicstaticvoid main(String[] args) {
      ExecutorService service = Executors.newCachedThreadPool(); //缓存线程池（动态）
      final Exchanger exchanger = new Exchanger();
       service.execute(new Runnable(){
        public void run() {
           try{
              String data1 = "zxx";
              System.out.println("线程" +              Thread.currentThread().getName() +"正在把数据" + data1 +"换出去");
              Thread.sleep((long)(Math.random()*10000));
              String data2 = (String) exchanger.exchange(data1); //运行到此，阻塞，必须要两个交换数据的线程都到达交换状态，才能交换数据
              System.out.println("线程" + Thread.currentThread().getName() + 
"换回的数据为" + data2); 
           }catch(Exception e){
              
           }
        }
      });
  
      service.execute(new Runnable(){
        publicvoid run() {
           try{
              String data1 = "lhm";
              System.out.println("线程" + Thread.currentThread().getName() + "正在把数据" + data1 +"换出去");
              Thread.sleep((long)(Math.random()*10000));             
              String data2 = (String)exchanger.exchange(data1); //运行到此，阻塞，必须要两个交换数据的线程都到达交换状态，才能交换数据
              System.out.println("线程" + Thread.currentThread().getName() + "换回的数据为" + data2);
           }catch(Exception e){
             
           }         
        } 
      });    
   }
}