多线程火车售票案例

1.车票类

package A718.xiancheng.huoche;

//车票
public class Ticket {
    
    
    private Integer ticketNum; //票号
    private String trainNum; //车次
    private String Origin; //始发地
    private String destination; //目的地

    @Override
    public String toString() {
    
    
        return "票号:"+ticketNum+",车次:"+trainNum+
                ",始发地:"+Origin+",目的地:"+destination;
    }

    public Ticket() {
    
    
    }

    public Ticket(Integer ticketNum, String trainNum, String origin, String destination) {
    
    
        this.ticketNum = ticketNum;
        this.trainNum = trainNum;
        Origin = origin;
        this.destination = destination;
    }

    public Integer getTicketNum() {
    
    
        return ticketNum;
    }

    public void setTicketNum(Integer ticketNum) {
    
    
        this.ticketNum = ticketNum;
    }

    public String getTrainNum() {
    
    
        return trainNum;
    }

    public void setTrainNum(String trainNum) {
    
    
        this.trainNum = trainNum;
    }

    public String getOrigin() {
    
    
        return Origin;
    }

    public void setOrigin(String origin) {
    
    
        Origin = origin;
    }

    public String getDestination() {
    
    
        return destination;
    }

    public void setDestination(String destination) {
    
    
        this.destination = destination;
    }
}

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2.售票员多线程类

package A718.xiancheng.huoche;

import java.util.List;

//售票员类
public class Ticketer extends Thread {
    
    
    //票库，（多个售票员同一个票库）
    private List<Ticket> tickets;

    //卖票方法(从集合中删除一张票)
    public void selltick(){
    
    
        //从票库删除一张票
        Ticket ticket = this.tickets.remove(0);
        System.out.println(this.getName()+"卖了一张:"+ticket);

    }
    @Override
    public void run(){
    
    
        //多线程卖票，卖完为止
        while (true){
    
    
            synchronized (this.tickets){
    
    

            //如果有剩余票，则调用卖票方法
            if (this.tickets.size()>0){
    
    
                selltick();
            }else {
    
    
                System.out.println(this.getName()+"票已售完！");
                break;
            }
        }
    }
    }
    public List<Ticket> getTickets() {
    
    
        return tickets;
    }

    public void setTickets(List<Ticket> tickets) {
    
    
        this.tickets = tickets;
    }
}

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3.测试并发卖票

package A718.xiancheng.huoche;

import java.util.ArrayList;
import java.util.List;

public class Test {
    
    
    public static void main(String[] args) {
    
    
        //测试类中创建两个子线程进行卖票
        List<Ticket> tickets = new ArrayList<>();
        for (int i = 0; i <=20 ; i++) {
    
    
            Ticket ticket = new Ticket(i,"G200","郑州","北京");
            Ticket ticket2 = new Ticket(i,"G202","上海","深圳");
            tickets.add(ticket);
            tickets.add(ticket2);
        }
        Ticketer t1 = new Ticketer();
        t1.setName("小王");
        Ticketer t2 = new Ticketer();
        t2.setName("老六");

        //给两个售票员设置同一个票库
        t1.setTickets(tickets);
        t2.setTickets(tickets);

        //t1.setPriority(10);   //设置线程优先级,1-10，10最优先
        //t2.setPriority(8);
        //开始子线程售票
        t1.start();
        t2.start();
    }
}

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