Java中，生产者和消费者的问题

一，问题：生产者将生产出来的产品放入仓库中（仓库的容量为10)，而消费者从仓库中取走产品（当仓库的产品数量为０时，不能取产品）.使用多线程方法解答．

以下是我写的解法:有四个文件组成．

Cangku.java

package com.procom.java;

public class Cangku {

    public synchronized void addProduct()  //生产者
    {
        if(this.products>=10)
        {
            try
            {
                this.wait();
            }catch(InterruptedException e)
            {
                e.printStackTrace();
            }
        }
        else
        {
          products++;
          System.out.println("生产者生产第"+products+"个产品");

          this.notifyAll();

        }
    }
    public synchronized void getProduct()  //消费者
    {
        if(this.products<=0)
        {
            try
            {
                this.wait();
            }
            catch(InterruptedException e)
            {
                e.printStackTrace();
            }
        }
        else
        {
            System.out.println("消费者取走了第"+products+"个产品");
            products--;
            this.notifyAll();
        }
    }

    private int products=0;

}

Producer.java

package com.procom.java;

public class Producer implements Runnable {

    public Producer(Repertory repertory)
    {
        this.repertory=repertory;
    }

    public void run()
    {
        System.out.println("生产者开始生产产品");
        while(true)
        {
            try
            {
                Thread.sleep((int)(Math.random()*10)*100);
            }catch(InterruptedException e)
            {
                e.printStackTrace();
            }

            repertory.addProduct();
        }

    }


    private Repertory repertory;

}

Consumer.java

package com.procom.java;

public class Consumer implements Runnable{

    public Consumer(Repertory repertory)
    {
        this.repertory=repertory;
    }

    public void run()
    {
        System.out.println("消费之开始取走产品");

        while(true)
        {
            try
            {
                Thread.sleep((int)(Math.random()*10)*100);
            }catch(InterruptedException e)
            {
                e.printStackTrace();
            }

            repertory.getProduct();
        }


    }

    private Repertory repertory;

}

Test1.java

package com.procom.java;

public class Test1 {

    public static void main(String [] args)
    {
        Cangku cangku=new Cangku();
        Producer pr1=new Producer(cangku);
        Consumer co1=new Consumer(cangku);

        Thread th1=new Thread(pr1);
        Thread th2=new Thread(co1);

        th1.start();
        th2.start();



    }

}