java错在哪

class Test2
{
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;

public 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;
public Consumer(Queue q)
{
this.q=q;

}
public void run()
{
while(true)
System.out.println("Con

class Test2
{
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;

public Producer(Queue q)
{
this.q=q;
}

public void run()
{
for(int i=0;i<10;i++)
{
try{
Thread.sleep(500);
}
catch(Exception e){
e.printStackTrace();
}
q.put(i);
System.out.println("Producer put "+i);
}
}

}

class Consumer extends Thread
{
Queue q;
public Consumer(Queue q)
{
this.q=q;

}
public void run()
{
while(true) {
try{
Thread.sleep(500);
}
catch(Exception e){
e.printStackTrace();
}
System.out.println("Consumer get "+q.get());
}