Exchanger

最新推荐文章于 2025-09-17 08:02:21 发布

原创最新推荐文章于 2025-09-17 08:02:21 发布 · 263 阅读

CC 4.0 BY-SA版权

package demo;

import java.util.Random;
import java.util.concurrent.Exchanger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
 * 这个类用来模拟吃饭和打饭时候交换 "碗"的过程
 * 
 * @author king_wang
 *
 */
public class ExchangerDemo {

     public static void main(String[] args){

         ExecutorService  exePool=Executors.newFixedThreadPool(2);
           //创建一个Exchange类型的对象用来进行两个线程之间的数据的转换
           final     Exchanger   changer=new Exchanger();
           //吃饭的线程；
           Runnable   eat = new Runnable(){
                @Override
                public void run() {
                    String cup="空的碗";
                     try {
                        System.out.println("正在吃饭。。。");
                        Thread.sleep(5000);

                         System.out.println("线程"+Thread.currentThread().getName()
                                  +"正在把   " + cup + "  交换");
                         String cups=(String)changer.exchange(cup);
                         System.out.println("线程 " + Thread.currentThread().getName()
                                    + "换回的数据为 " + cups);

                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }

             }; 
             //打饭的线程；
             Runnable   add = new Runnable(){
                @Override
                public void run() {
                    String cups="满的碗";
                     try {
                         System.out.println("正在打饭。。。");
                         Thread.sleep(8000);

                         System.out.println("线程"+Thread.currentThread().getName()
                              +"正在把   "+ cups + "  交换");
                     String cup=(String)changer.exchange(cups);
                     System.out.println("线程 " + Thread.currentThread().getName()
                             + "换回的数据为 " + cup);
                    } catch (InterruptedException e) {

                        e.printStackTrace();
                    }

                }
             };
            exePool.execute(eat);
            exePool.execute(add);
            exePool.shutdown();



     }
}