多线程模拟火车站卖票-继承Thread类
public class Demo2_Snschronized {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("多线程开始时间(毫秒):"+System.currentTimeMillis());
new Ticket().start();
new Ticket().start();
new Ticket().start();
new Ticket().start();
long startTime = System.currentTimeMillis();
for (int i = 0; i < 100000; i++) {
System.out.print("");
}
System.out.println("单线程卖票结束。。。。。。。。。。。。。。。");
endTime = System.currentTimeMillis();
System.out.println("单线程售卖100000张票,共计用时:"+(endTime-startTime)+"毫秒!");
}
}
class Ticket extends Thread{
private static int ticket = 100000;
public void run() {
synchronized (Ticket.class) {
while(ticket>0) {
// System.out.println((ticket--)+"号票已售出!");
ticket--;
}
if(ticket==0) {
System.out.println("多线程卖票结束。。。。。。。。。。。。");
System.out.println("多线程结束时间(毫秒):"+System.currentTimeMillis());
}
}
}
}