Ticket

public class Ticket {
    public Ticket(int number) {
        this.number = number;
    }
     int number;
}

TicketThread

public class TicketThread extends Thread {
    private String name;
    private Ticket ticket;
    private int count;

    public TicketThread(String name, Ticket ticket) {
        this.name = name;
        this.ticket = ticket;
        count = ticket.number;
    }

    @Override
    public void run() {
        for (int i = 1; i <= count; i++) {
            try {
                synchronized (ticket) {
                    if (ticket.number > 0) {
                        ticket.number--;
                        Thread.sleep(100);
                        System.out.println(name + " 賣(mài)了 " + i + " 張票"
                                + ", 余票：" + ticket.number);
                    } else {
                        System.out.println(name + " 沒(méi)有票了");
                        break;
                    }

                }
            Thread.sleep(500);//增加賣(mài)票輸出到下一次賣(mài)票過(guò)程的間隔時(shí)間
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

測(cè)試類(lèi)

public class TicketTest {
    public static void main(String[] args){
        Ticket ticket = new Ticket(30);

        TicketThread t1 = new TicketThread("T1", ticket);
        TicketThread t2 = new TicketThread("T2", ticket);
        TicketThread t3 = new TicketThread("T3", ticket);

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

結(jié)果

result.gif