import java.util.concurrent.locks.*;
class Resource
{
private String name;
private int count=1;
private boolean flag=false;
//创建一个锁对象
Lock lock=new ReentrantLock();
Condition producer_con=lock.newCondition();
Condition consumer_con=lock.newCondition();
public void set(String name)
{ lock.lock();
try{
while(flag)
{try
{producer_con.await();}
catch(InterruptedException e){}
}
this.name=name+count;
count++;
System.out.println(Thread.currentThread().getName()+"。。。生产者。。。"+this.name);
flag=true;
consumer_con.signal();
}
finally{lock.unlock();}
}
public void show()
{ lock.lock();
try{
while(!flag)
try
{consumer_con.await();}catch(InterruptedException e){}
System.out.println(Thread.currentThread().getName()+"。。。消费者。。。"+this.name);
flag=false;
producer_con.signal();
}
finally{lock.unlock();}
}
}
class Producer implements Runnable
{private Resource r;
public Producer(Resource r)
{
this.r=r;
// TODO Auto-generated constructor stub
}
public void run()
{
r.set("烤鸭");
}
}
class Consumer implements Runnable
{private Resource r;
Consumer(Resource r)
{
this.r=r;
// TODO Auto-generated constructor stub
}
public void run()
{
r.show();
}
}
public class ProducerCustomer {
public static void main(String[]args)
{
Resource r=new Resource();
Producer p1=new Producer(r);
Producer p2=new Producer(r);
Consumer c1=new Consumer(r);
Consumer c2=new Consumer(r);
Thread t1=new Thread(p1);
Thread t2=new Thread(p2);
Thread t3=new Thread(c1);
Thread t4=new Thread(c2);
t1.start();
t2.start();
t3.start();
t4.start();
}
}
打印结果：
Thread-0。。。生产者。。。烤鸭1
Thread-2。。。消费者。。。烤鸭1
Thread-1。。。生产者。。。烤鸭2
Thread-3。。。消费者。。。烤鸭2
然后就没了。。。。请问是死锁了吗？怎么解决
