import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class Ticket2 implements Runnable {
private int tickets = 100;
private final Lock lock = new ReentrantLock();
@Override
public void run() {
do {
lock.lock();
if (tickets > 0) {
System.out.println(Thread.currentThread().getName() + "出售票" + (tickets--));
}
lock.unlock();
} while (tickets > 0);
}
}
public static void main(String[] args) {
Ticket2 ticket = new Ticket2();
Thread t1 = new Thread(ticket, "窗口1");
Thread t2 = new Thread(ticket, "窗口2");
Thread t3 = new Thread(ticket, "窗口3");
Thread t4 = new Thread(ticket, "窗口4");
t1.start();
t2.start();
t3.start();
t4.start();
}
推荐使用
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class Ticket2 implements Runnable {
private int tickets = 100;
private final Lock lock = new ReentrantLock();
@Override
public void run() {
lock.lock();
try {
do {
if (tickets > 0) {
System.out.println(Thread.currentThread().getName() + "出售票" + (tickets--));
}
} while (tickets > 0);
} finally {
lock.unlock();
}
}
}