多线程模拟火车票售卖场景

爱被打了一巴掌 2021-09-28 23:34 531阅读 0赞

## 一、模拟火车票售卖场景，三个窗口售卖A-B地的火车票，火车票共100张。 ##

要求：  
编号1-100 打印示例：窗口1售卖火车票66  
窗口：写3个线程，

import java.util.Random;
    
    /** * @auther: 巨未 * @DATE: 2019/4/12 0012 23:18 * @Description: */
    class Tickets { 
    
        private static int num = 0;
    
        public static synchronized int sale() { 
            int i = ++num;
            return i> 100?-1:i;  //如果i>100返回-1.小于100返回i
        }
    }
    public class SaleTickets { 
        public static void main(String[] args) { 
    
            Thread thread1 = new Thread(new Runnable() { 
                @Override
                public void run() { 
                    Random random = new Random();
                    int i = 0;
                    while ((i = Tickets.sale()) != -1) { 
                        System.out.println(Thread.currentThread().getName() + "售卖票：" + i);
                        try { 
                            Thread.sleep(random.nextInt(1000));
                        } catch (InterruptedException e) { 
                            e.printStackTrace();
                        }
    
                    }
                }
            }, "窗口1");
            Thread thread2 = new Thread(new Runnable() { 
                @Override
                public void run() { 
                    Random random = new Random();
                    int i = 0;
                    while ((i = Tickets.sale()) != -1) { 
                        System.out.println(Thread.currentThread().getName() + "售卖票：" + i);
                        try { 
                            Thread.sleep(random.nextInt(2000));
                        } catch (InterruptedException e) { 
                            e.printStackTrace();
                        }
    
                    }
                }
            }, "窗口2");
            Thread thread3 = new Thread(new Runnable() { 
                @Override
                public void run() { 
                    Random random = new Random();
                    int i = 0;
                    while ((i = Tickets.sale()) != -1) { 
                        System.out.println(Thread.currentThread().getName() + "售卖票：" + i);
                        try { 
                            Thread.sleep(random.nextInt(2000));
                        } catch (InterruptedException e) { 
                            e.printStackTrace();
                        }
    
                    }
                }
            }, "窗口3");
    
            thread1.start();
            thread2.start();
            thread3.start();
            }
    }

运行示例：  
![在这里插入图片描述][20190611090919595.png]

[20190611090919595.png]: /images/20210923/7ac2ed21f97e48edbd3246930fa6ae75.png