派号系统----多线程学习

直接贴代码：觉得非常实用！
package lab_11;

import java.util.LinkedList;

public class NumStore {
    LinkedList<Integer> list = new LinkedList<Integer>();
    Integer i = 1;
    public synchronized Integer push(){
        list.add(++i);
        //必须在获得锁的情况下才能调用notifyAll和wait方法
        this.notifyAll();
        return i;
    }
    
    public synchronized Integer pop(){
        while(list.isEmpty()){
            try {
                //
                wait();//在这里阻塞了
                
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        return list.remove(0);
    }
}
package lab_11;

public class QuHao extends Thread{
    private NumStore ns ;
    private String name;
    
    public QuHao(String name,NumStore ns){
        this.name = name;
        this.ns = ns;
    }
    public void run(){
        while(true){
            System.out.println("您的号码是:"+ns.push()+"，请排队等候叫号。。");
            try {
                Thread.sleep((int)(Math.random()*1000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}
package lab_11;

//派叫号系统
public class PaiJiaoHaoSystem {

    /**
     * @param args
     */
    public static void main(String[] args) {
        NumStore ns = new NumStore();
        
        QuHao q1 = new QuHao("取号机1",ns);
        QuHao q2 = new QuHao("取号机2",ns);
        
        Window w1 = new Window("窗口1",ns);
        Window w2 = new Window("窗口2",ns);
        Window w3 = new Window("窗口3",ns);
        
        q1.start();
        q2.start();
        w1.start();
        w2.start();
        w3.start();

    }

}