java多线程快速入门（九）

多线程安全问题（卖火车票案例）

package com.cppdy;
 
class MyThread5 implements Runnable{
 
    private Integer ticketCount=100;
    @Override
    public void run() {
        while(ticketCount>0) {
            try {
                Thread.sleep(50);
            } catch (Exception e) {
                e.printStackTrace();
            }
            sale();
        }
    }
 
    public void sale() {
        System.out.println(Thread.currentThread().getName()+"卖出了第："+(100-ticketCount+1)+"张票。");
        ticketCount--;
    }
}
 
public class ThreadDemo5 {
 
    public static void main(String[] args) throws Exception{
        MyThread5 mt = new MyThread5();
        Thread thread1 = new Thread(mt,"窗口1");
        Thread thread2 = new Thread(mt,"窗口2");
        thread1.start();
        thread2.start();
    }
 
}