java thread synchronization --lock lock (JDK 5 new)

The need to manually lock and release.

 

Package com.LearnJava.Thread; 

Import java.util.concurrent.locks.ReentrantLock; 

/ * 
    sync block 
    synchronized (sync monitor) { 
        // requires synchronization code 
    } 
    synchronization monitor: lock commonly known, may be any instantiated The class share the same need but one example. 
 * / 
class WindowSell the implements the Runnable { 
    of ReentrantLock Lock = new new of ReentrantLock ();
     Private  int Ticket = 100 ; 
    @Override 
    public  void RUN () {
         the while ( to true ) {
             the try { 

                Lock.lock () ; 
                IF (ticket > 0) {
                    System.out.println(Thread.currentThread().getName() + "sell " + ticket--);
                    Thread.sleep(100);

                }else{
                    break;
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            } finally {
                lock.unlock();
            }
        }
    }

}
public class ThreadTestTicket {
    public static void main(String[] args) {
        WindowSell win = new WindowSell();
        Thread t1 = new Thread(win);
        t1.setName("1号窗口");
        Thread t2 = new Thread(win);
        t2.setName("2号窗口");
        Thread t3 = new Thread(win);
        t3.setName("3号窗口");

        t1.start();
        t2.start();
        t3.start();
    }
}