java课本多线程内容
问题模拟5个站点卖票，票数100，不能多卖！
涉及难点线程同步问题
使用synchronized（）代码块进行上锁解决
源代码
public class SaleTicket {
public static void main(String[] agrs) {
Ticket a=new Ticket("a");
Ticket b=new Ticket("b");
Ticket c=new Ticket("c");
Ticket d=new Ticket("d");
Ticket e=new Ticket("e");
a.start();
b.start();
c.start();
d.start();
e.start();
}
}
class Ticket extends Thread{
static int ticket=100;
String name;
static Object obj=new Object();
public Ticket(String name) {
super();
this.name=name;
}
public void run() {
while(true) {
synchronized(obj) {
if(ticket>0) {
System.out.println(name+"卖出第"+(101-ticket)+"张票");
ticket--;
}else
return;
try{
Thread.sleep(10);
}catch(InterruptedException e){
e.printStackTrace();
}
}
}
}
}
