Java多线程实现电影院在线选座

package com.test;

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

/**
 *模拟电影院抢座位
 */
public class Test{
    
    public static void main(String[] args) {
        //可用位置
        List<Integer> available =new ArrayList<Integer>();
        for(int i=1; i<=10; i++) {
            available.add(Integer.valueOf(i)); //默认添加1-10号位置
        }

        //模拟5个顾客，需要的位置
        List<Integer> seats1 =new ArrayList<Integer>();
        seats1.add(1);
        seats1.add(2);
        List<Integer> seats2 =new ArrayList<Integer>();
        seats2.add(3);
        seats2.add(6);
        List<Integer> seats3 =new ArrayList<Integer>();
        seats3.add(4);
        seats3.add(8);
        seats3.add(9);
        List<Integer> seats4=new ArrayList<Integer>();
        seats4.add(2);
        seats4.add(3);
        seats4.add(4);
        
        Cinema cinema = new Cinema(available,"万达影院");
        
        //为每个顾客开辟一个线程，让系统自动调度
        new Thread(new Customer(cinema,seats1),"小华").start();
        new Thread(new Customer(cinema,seats2),"小红").start();
        new Thread(new Customer(cinema,seats3),"小丽").start();
        new Thread(new Customer(cinema,seats4),"小明").start();
    
    
    
    }
    
}
//顾客
class Customer implements Runnable {
    Cinema cinema;
    List<Integer> seats; //顾客选的座位数量
    
    public Customer(Cinema cinema, List<Integer> seats) {
        this.cinema = cinema;
        this.seats = seats;
    }
    
    @Override
    public void run() {
           //加上锁，保证线程同步
        synchronized (cinema) {
            boolean flag = cinema.bookTickets(seats);
            if(flag) {
                System.out.println("出票成功，"+Thread.currentThread().getName()+ "购买了"+seats+"座位");
            }else {
                System.out.println("出票失败，"+Thread.currentThread().getName()+"需要"+seats+"-->位置不够");
            }
            System.out.println("当前可用的位置为："+cinema.available);
            System.out.println("--------------------");
        }
        
    }
}
//电影院
class Cinema {
    List<Integer> available; //可用的座位数量
    String name; //名称
    
    public Cinema(List<Integer> available, String name) {
        this.available = available;
        this.name = name;
    }
    
    //购票
    public boolean bookTickets(List<Integer> seats) {
        
        List<Integer> copy = new ArrayList<>();
        copy.addAll(available);
        
        //移除顾客购买位置
        copy.removeAll(seats);
        //判断
        if(available.size() - copy.size() != seats.size()) {
            return false;
        }
        available = copy;
        return true;
    }
}

运行截图：