- class ProducerConsumerDemo
- {
- public static void main(String[] args)
- {
- Resource r=new Resource();
-
- Producer pro=new Producer(r);
-
- Consumer con=new Consumer(r);
-
- Thread t1=new Thread(pro);
- Thread t2=new Thread(pro);
- Thread t3=new Thread(con);
- Thread t4=new Thread(con);
- t1.start();
- t2.start();
- t3.start();
- t4.start();
- }
- }
- class Resource
- {
- private String name;
- private int count=1;
- private boolean flag=false;
-
- public synchronized void set(String name)
- {
- while(flag)
- try{wait();}catch(Exception e){}
- this.name=name+"--"+count++;
-
- System.out.println(Thread.currentThread().getName()+"...生产者..."+this.name);
- flag=true;
- this.notifyAll();
-
- }
-
- public void out()
- {
- while(!flag)
- try{wait();}catch(Exception e){}
- System.out.println(Thread.currentThread().getName()+"...消费者........"+this.name);
- flag=false;
- this.notifyAll();
- }
- }
- class Producer implements Runnable
- {
- private Resource res;
-
- Producer(Resource res)
- {
- this.res=res;
- }
- public void run()
- {
- while(true)
- {
- res.set("+商品+");
- }
- }
-
- }
- class Consumer implements Runnable
- {
- private Resource res;
-
- Consumer(Resource res)
- {
- this.res=res;
- }
- public void run()
- {
- while(true)
- {
- res.out();
- }
- }
- }
复制代码 D:\java0218\day06>java ProducerConsumerDemo
Thread-0...生产者...+商品+--1
Thread-1...消费者...+商品+--1
Exception in thread "Thread-1" java.lang.IllegalMonitorStateException
at java.lang.Object.notify(Native Method)
at Resource.out(ProducerConsumerDemo.java:44)
at Consumer.run(ProducerConsumerDemo.java:80)
at java.lang.Thread.run(Thread.java:744)
大家好 运行的时候出现上边提示 我看不懂 哪位大神帮我分析下这个是什么意思啊 代码是和视频里边一模一样的 让我很郁闷!
|
|