package com.yangyuanyuan.juc1205;import java.util.concurrent.locks.Lock;import java.util.concurrent.locks.ReentrantLock;class Ticket //资源类 = 实例变量+实例方法{    private int number = 30;    // List list = new ArrayList();    Lock lock = new ReentrantLock();    public void sale()    {        lock.lock();        try        {            if(number > 0)            {                System.out.println(Thread.currentThread().getName()+"\t卖出第："+(number--)+"\t 还剩下： "+number);            }        }catch (Exception e){            e.printStackTrace();        }finally {            lock.unlock();        }    }}/** * * 题目：三个售票员         卖出          30张票 * 笔记：如何编写企业级的多线程代码 *  固定的编程套路+模板是什么？ * *  1 在高内聚低耦合的前提下，线程        操作      资源类 * *    1.1 一言不合，先创建一个资源类 * */public class SaleTicketDemo01{    public static void main(String[] args)//主线程，一切程序的入口    {        Ticket ticket = new Ticket();////        @FunctionalInterface//        public interface Runnable {////            public abstract void run();//        }        //2、lambda表达式        new Thread(() -> { for (int i = 1; i <=40; i++) ticket.sale(); },"A").start();        new Thread(() -> { for (int i = 1; i <=40; i++) ticket.sale(); },"B").start();        new Thread(() -> { for (int i = 1; i <=40; i++) ticket.sale(); },"C").start();        new Thread(new Runnable()        {            @Override            public void run()            {                for (int i = 1; i <=40; i++) ticket.sale();                {                    ticket.sale();                }            }        }, "A").start();        //业务逻辑一行 括号可省略for (int i = 1; i <=40; i++) ticket.sale();        //1、匿名内部类        //Thread(Runnable target, String name) Allocates a new Thread object.        /*new Thread(new Runnable()        {            @Override            public void run()            {                for (int i = 1; i <=40; i++)                {                    ticket.sale();                }            }        }, "A").start();        new Thread(new Runnable()        {            @Override            public void run()            {                for (int i = 1; i <=40; i++)                {                    ticket.sale();                }            }        }, "B").start();        new Thread(new Runnable()        {            @Override            public void run()            {                for (int i = 1; i <=40; i++)                {                    ticket.sale();                }            }        }, "C").start();        */    }}