java多线程模拟实现12306售票

/**java多线程模拟实现12306售票

        业务描述
        假设有200张票，用4个线程去订票，不能有两个或者以上的线程订到了
        同一个票（原因就不说了），当最后一张票卖掉的时候结束，再订就抛
        异常提示出票卖完了。

        业务分析,要实现以上功能，

        1、需要创建一个车票类，初始化票，卖票的接口saleTicket()

        2、自定义异常的一个类。


        3、创建卖票线程类，在run方法中卖车票。

        4、初始化车票的线程,负责初始化车票,也就是初始化Ticket类中的数组。

        5、创建主方法进行测试。*/

//票类

public class Ticket {
    Ticket[] tickets=new Ticket[200];
    int no;
    String name;
    double fares;
    //索引判断是否卖完票
    int index=200;
    public Ticket() {
    }

    public Ticket(int no, String name, double fares) {
        this.no = no;
        this.name = name;
        this.fares = fares;
    }
//卖票
    public  synchronized void  saleTicket() {
        // TicketT t= new TicketT();
        for (int i = 0; i < 60; i++) {
            if (index < 1) {
                System.out.println("票已售完");
                return;
            } else {
                index--;
                System.out.println(Thread.currentThread().getName() + "已预定" + tickets[index].toString() + "剩余票数" + index);
            }

        }
    }
    //重写toString方法
    @Override
    public String toString() {
        return "车票[" +
                "车次:" + no +
                ",行程:" + name + '\'' +
                ", 票价:" + fares +
                ']';
    }
}

package day33test;


//线程类
public class TicketThread extends Thread{
    private Ticket ticket;
    public TicketThread(Ticket ticket){
        this.ticket=ticket;
    }
    @Override
    public void run() {


      ticket.saleTicket();
    }
}
//初始化票
class TicketT extends Thread {
     Ticket ticket;
    public TicketT(){}
public TicketT(Ticket ticket){
    this.ticket=ticket;
}

    @Override
    public void run() {
        for (int i = 0; i < ticket.tickets.length; i++) {
            if (i < 50) {
                ticket.tickets[i] = new Ticket(1001, "北京--->南宁", 140.00);
            }
           else if (i < 100) {
                ticket.tickets[i] = new Ticket(2001, "南宁--->北京", 140.00);
            }
           else if (i < 150) {
                ticket.tickets[i] = new Ticket(3001, "昆明--->南宁", 100.00);
            } else {
                ticket.tickets[i] = new Ticket(4001, "南宁--->昆明", 100.00);

            }


        }

    }


}

package day33test;
//测试类
public class TicketTest {
    public static void main(String[] args) {

        Ticket ticket=new Ticket();
       TicketT begin=new TicketT(ticket);


        //
        Thread t1= new TicketThread(ticket);
        Thread t2= new TicketThread(ticket);
        Thread t3= new TicketThread(ticket);
        Thread t4= new TicketThread(ticket);
        begin.start();
        //合并线程保证初始化先进行
        try {
            begin.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        TicketT tis=new TicketT();

        t1.setName("一号窗口");
        t2.setName("二号窗口");
        t3.setName("三号窗口");
        t4.setName("四号窗口");
        t1.start();
        t2.start();
        t3.start();
        t4.start();

//测试初始化是否完成
     /*   for (int i = 0; i <begin.ticket.tickets.length ; i++) {
            System.out.println(begin.ticket.tickets[i]);
        }
*/
    }
}