java多线程_票售问题
以下是本人调试的售票代码 为什么运行一次后cpu就百分之百了，而eclipse就死了，求优化。。。
  package cn.xu.thread;
   class Ticket implements Runnable{
   private int tickets =100;
   public void run() {
   
   while(true){
     if(tickets>0)
     System.out.println(Thread.currentThread().getName()+"  "+ tickets--);
   }
  }
}
public class ThreadDemo01 {
   public static void main(String[] args) {
    Ticket t = new Ticket();
    Thread t1 = new Thread(t);
    Thread t2 = new Thread(t);
    Thread t3 = new Thread(t);
    Thread t4 = new Thread(t);
    t1.start();
    t2.start();
    t3.start();
    t4.start();
}
}

代码给你改了一下 你没有跳出循环的语句啊，while永远为true了不是么。还有 线程的话 应该加入wait()执行，实现同步与死锁，你这个代码现在没加到是没什么 但以后做大程序了都要加入 不然会产生错误[code=java]class Ticket implements Runnable{
        private int tickets = 100;
        public void run(){
                while(true){
                        if(tickets>0){
                                System.out.println(Thread.currentThread().getName()+"  "+ tickets--);
                        }else{
                                break;
                        }               
                }
        }
}
public class ThreadDemo01{
        public static void main(String[] args) {
                Ticket t = new Ticket();
                Thread t1 = new Thread(t);
                Thread t2 = new Thread(t);
                Thread t3 = new Thread(t);
                Thread t4 = new Thread(t);
                t1.start();
                t2.start();
                t3.start();
                t4.start();
        }
} [/code]

[code] package cn.xu.thread;
   class Ticket implements Runnable{
   private int tickets =100;
   public void run() {
   
   while(true){
lock();
     if(tickets>0)
     System.out.println(Thread.currentThread().getName()+"  "+ tickets--);
unlock();
   } else{
break;
}
  }
}
public class ThreadDemo01 {
   public static void main(String[] args) {
    Ticket t = new Ticket();
    Thread t1 = new Thread(t);
    Thread t2 = new Thread(t);
    Thread t3 = new Thread(t);
    Thread t4 = new Thread(t);
    t1.start();
    t2.start();
    t3.start();
    t4.start();
}
} [/code]