（多线程）多线程的通信---java5.0新实现
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生产者
package com.gc.thread.producer;public class Demo {public static void main(String[] args) {//资源Resource r = new Resource();//生产者Producer producer1 = new Producer(r);Producer producer2 = new Producer(r);//消费者Consumer consumer1 = new Consumer(r);Consumer consumer2 = new Consumer(r);new Thread(producer1).start();new Thread(producer2).start();new Thread(consumer1).start();new Thread(consumer2).start();}}?