Analog train station ticket program is completed.
要求:
(1)总票数1000张
(2)10个窗口同时开始卖票;
(3)卖票过程延时1秒钟
(4)不能出现一票多卖或卖出负数号票的情
况。Code:
package Text10;
public class MyThread implements Runnable{
private int ticket=1000;
public void run() {
while(true) {
synchronized(this){
if(ticket>=0) {
try {
Thread.sleep(1000); //延迟一秒
}catch(InterruptedException e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+"卖出一张票，剩下票数:ticket="+ticket--);
}
}
}
}
}Test category
package Text10;
public class Text1024 {
public static void main(String[] args) {
MyThread mt=new MyThread();
new Thread(mt, "窗口1").start();
new Thread(mt, "窗口2").start();
new Thread(mt, "窗口3").start();
new Thread(mt, "窗口4").start();
new Thread(mt, "窗口5").start();
new Thread(mt, "窗口6").start();
new Thread(mt, "窗口7").start();
new Thread(mt, "窗口8").start();
new Thread(mt, "窗口9").start();
new Thread(mt, "窗口10").start();
}
}Attachment:
to sum up:
1. This week learn the difference between processes and threads;
To achieve multi-threaded area:
Thread class inheritance:
Implement Runnable:
2. learn the common thread of method of operation, they need to remember in practice
3. Learn the synchronization and deadlock:
使用同步代码块：synchronized(同步对象）{
需要同步代码；
}
和同步方法：
synchronized方法返回值 方法名称（参数列表）{}