生产者-消费者-停止生产-停止消费.doc

命题:生产者,消费者;
1. 当商品到达10个,则停止生产;
2. 当商品为0时,则停止生产,

产品集: Products
package RunnableTest.Test2;

import java.util.Stack;

public class Products {
int counter = 0;
Stack stack;

public Products()
{
stack = new Stack();
}
public synchronized void get()
{
int item = stack.size() ;
if(item == 0)
{
try {
System.out.println("暂停消费");
wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

Object getS = stack.pop();
System.out.println("消费 "+getS);
this.notify();
}
public synchronized void put()
{
int item = stack.size()+1 ;
if(item>=10)
{
try {
System.out.println("暂停生产 ");
wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
counter ++;
stack.push(item);
System.out.println("共生产 "+counter+";生产 "+item);
this.notify();
}
}

生产者: Produce
package RunnableTest.Test2;

public class Produce implements Runnable{

Products products;
public Produce(Products p)
{
products = p;
}
@Override
public void run() {
// TODO Auto-generated method stub
while(true)
{
try {
Thread.sleep((int)Math.random()*1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
products.put();
}
}

}

消费者: Customer
package RunnableTest.Test2;

public class Customer implements Runnable{

Products products;
public Customer(Products p)
{
products = p;
}
@Override
public void run() {
// TODO Auto-generated method stub
while(true)
{
try {
Thread.sleep((int)Math.random()*900);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
products.get();
}
}
}

测试:Test2
package RunnableTest.Test2;

public class Test2 {
public static void main(String[] args)
{
Products p =new Products();//产品集
Produce produce =new Produce(p);//生产
new Thread(produce).start();
Customer customer =new Customer(p);//消费
Thread t = new Thread(customer);
t.start();
}
}

==部分结果==
共生产 1;生产 1
消费 1
暂停消费
共生产 2;生产 1
消费 1
暂停消费
共生产 3;生产 1
消费 1
共生产 4;生产 1
消费 1
共生产 5;生产 1
消费 1
共生产 6;生产 1
消费 1
………………
……………….
共生产 9406;生产 5
共生产 9407;生产 6
共生产 9408;生产 7
共生产 9409;生产 8
共生产 9410;生产 9
暂停生产
消费 9
共生产 9411;生产 10
暂停生产
消费 10
共生产 9412;生产 10
暂停生产
消费 10