gistfile1.java

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Main {

	public static void main(String[] args) {

		List<Ticket> sellingTickets = new ArrayList<>();

		for (int i = 0; i < 10; ++i) {
			sellingTickets.add(new Ticket(i));
		}
		for (int i = 0; i < 1000; ++i) {
			new Thread(new Consumer(i, sellingTickets)).start();
		}
	}
}

class Ticket {

	private Integer id;
	private Lock lock = new ReentrantLock();
	private boolean sold = false;

	public Ticket(Integer id) {
		this.id = id;
	}

	public void sold(Consumer consumer) {
		try {
			lock.lock();
			if (sold)
				return;
			sold = true;
			System.out.println(consumer.getId() + "号顾客抢到了" + id + "号票");
		} finally {
			lock.unlock();
		}
	}
}

class Consumer implements Runnable {

	private Integer id;
	private List<Ticket> sellingTickets;

	public Consumer(Integer id, List<Ticket> sellingTickets) {
		this.id = id;
		this.sellingTickets = sellingTickets;
	}

	@Override
	public void run() {
		for (Ticket ticket : sellingTickets) {
			ticket.sold(this);
		}
	}

	public Integer getId() {
		return id;
	}

}