java Lock接口详解及实例代码
java Lock接口
java.util.concurrent.locks
接口Lock
publicinterfaceLoce
Loce实现提供了比使用synchronized方法和语句可获得的更广泛的锁定操作
importjava.util.concurrent.locks.Lock;
importjava.util.concurrent.locks.ReentrantLock;
publicclassIntegerDemo{
publicstaticvoidmain(String[]args){
//创建3个线程对象
SellTicketst=newSellTicket();
Threadt1=newThread(st,"窗口1");
Threadt2=newThread(st,"窗口2");
Threadt3=newThread(st,"窗口3");
//启动线程
t1.start();
t2.start();
t3.start();
}
}
classSellTicketimplementsRunnable{
privateintticket=100;
privateLocklock=newReentrantLock();
publicvoidrun(){
while(true){
lock.lock();
if(ticket>0){
try{
Thread.sleep(100);
}catch(InterruptedExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+"正在出售第"+(ticket--)+"张票。");
}
lock.unlock();
}
}
}
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