线程:Exchanger同步工具
时间:2014-05-12 17:55:23
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可以在对中对元素进行配对和交换的线程的同步点,类似于交易,A拿着钱到达指定地点,B拿着物品到达指定地点,相互交换,然后各自忙各自的事去了。
1 package ch03; 2 3 import java.util.concurrent.Exchanger; 4 5 public class ExchangerTest { 6 7 public static void main(String[] args) { 8 final Exchanger<String> changer = new Exchanger<>(); 9 new Thread(new Runnable() { 10 11 @Override 12 public void run() { 13 try{ 14 String data1 = "xyy"; 15 System.out.println("交换前,"+Thread.currentThread().getName()+"的数据是:"+data1); 16 //等待交易 17 String afterChange = changer.exchange(data1); 18 System.out.println("交换后,"+Thread.currentThread().getName()+"的数据是:"+afterChange); 19 }catch (Exception e) { 20 } 21 } 22 }).start(); 23 24 new Thread(new Runnable() { 25 26 @Override 27 public void run() { 28 try{ 29 String data1 = "zy"; 30 System.out.println("交换前,"+Thread.currentThread().getName()+"的数据是:"+data1); 31 //等待交易 32 String afterChange = changer.exchange(data1); 33 System.out.println("交换后,"+Thread.currentThread().getName()+"的数据是:"+afterChange); 34 }catch (Exception e) { 35 } 36 } 37 }).start(); 38 } 39 40 }
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