Java经典线程同步问题------生产者与消费者
2012-07-26 19:38 javaspring 阅读(251) 评论(0) 编辑 收藏 举报先上代码
class Test
{
public static void main(String []args)
{
Queue q=new Queue();
Producer p=new Producer(q);
Consumer c=new Consumer(q);
p.start();
c.start();
}
}
class Producer extends Thread
{
Queue q;
Producer(Queue q)
{
this.q=q;
}
public void run()
{
for(int i=0;i<10;i++)
{
q.put(i);
System.out.println("Producer put"+i);
}
}
}
class Consumer extends Thread
{
Queue q;
Consumer(Queue q)
{
this.q=q;
}
public void run()
{
while(true)
{
System.out.println("Consumer get"+q.get());
}
}
}
class Queue
{
int value;
boolean bFull=false;
public synchronized void put(int i)
{
if(!bFull)
{
value=i;
bFull=true;
notify();
}
try{
wait();
}
catch(Exception e)
{}
}
public synchronized int get()
{
if(!bFull)
{
try
{
wait();
}
catch(Exception e)
{
}
}
bFull=false;
notify();
return value;
}
}运行结果
Producer put0 Consumer get0 Consumer get1 Producer put1 Consumer get2 Producer put2 Consumer get3 Producer put3 Consumer get4 Producer put4 Consumer get5 Producer put5 Consumer get6 Producer put6 Consumer get7 Producer put7 Consumer get8 Producer put8 Consumer get9 Producer put9
