设有火车票100张，创建10个线程模拟10个售票点，每个售票点100毫秒售出一张票。打印售票过程，注意使用synchronized确保同一张票只能卖出一次Java代码实现

以下是Java代码实现：

public class TicketSeller implements Runnable {
private static int ticketCount = 100;
private static final Object lock = new Object();
private String name;

public TicketSeller(String name) {
this.name = name;
}

@Override
public void run() {
while (ticketCount > 0) {
synchronized (lock) {
if (ticketCount == 0) {
break;
}
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
ticketCount--;
System.out.println(name + " 售出了一张票，剩余 " + ticketCount + " 张票");
}
}
}
}

public class TestTicketSeller {
public static void main(String[] args) {
for (int i = 1; i <= 10; i++) {
Thread thread = new Thread(new TicketSeller("售票点" + i));
thread.start();
}
}
}