Java线程：生产者消费者模型

public class ProduceConsume {



 /** 



  *@param 生产消费程序

  * @author wenhaibo

  */

 public static void main(String[] args) {

  Container container=new Container();

  Producer p=new Producer(container);

  Consumer c=new Consumer(container);

  new Thread(p).start();

  new Thread(c).start();

 }



}

class Food{

 //标记食物ID

 int id;

 Food(int id){

  this.id=id;

 }

 public String toString(){

  return "食物 id :"+id;

 }

}

class Container{

 //为容器定义下标值和容量

 int index=0;

 Food[] arryfood=new Food[10];

  //提供往容器仍食物的方法

 public synchronized void still(Food food){

  if(index==arryfood.length){

   try {

    this.wait();

   } catch (InterruptedException e) {

    // TODO Auto-generated catch block

    e.printStackTrace();

   }

  }

  this.notify();

  arryfood[index]=food;

  index++;

 }

 //提供往容器拿食物的方法

 public synchronized Food hold(){

  if(index==0){

   try {

    this.wait();

   } catch (InterruptedException e) {

    // TODO Auto-generated catch block

    e.printStackTrace();

   }

  }

  this.notify();

  index--;

  return arryfood[index];  

 }

}

class Producer implements Runnable{

 // 生产者生产食物

 Container container=null;

 public Producer(Container container) {

  //提供装食物的容器

  this.container=container;

 }

 public void run() {

 //开始生产食物放进容器里

  for(int i=0;i<20;i++){

   Food food=new Food(i);

   container.still(food);

   System.out.println("生产了 ："+food);

   try {

    Thread.sleep(100);

   } catch (InterruptedException e) {

    // TODO Auto-generated catch block

    e.printStackTrace();

   }

  }

  

 }

 

}

class Consumer implements Runnable{

 //消费者消费食物

 Container container=null;

 Consumer(Container container){

  this.container=container;

 }

 public void run() {

  // 开始消费食物

  for(int i=0;i<20;i++){

   Food food=container.hold();

   System.out.println("消费了 ："+food);

   try {

    Thread.sleep(1000);

   } catch (InterruptedException e) {

    // TODO Auto-generated catch block

    e.printStackTrace();

   }

  }

 }

 

}