基于java的生产者和消费者三种实现方式

1、概述

    生产者和消费者问题是一个经典的线程同步问题。生产者（Producer）生产产品（Product），放入仓库（Repertory）；消费者（Consumer）消费产品，从仓库里获取。仓库爆满时生产者等待消费者消费，仓库为空时消费者等待生产者生产。

2、实现

2.1、synchronized

    生产者Producer：        

public class Producer implements Runnable {
    private static final String TAG = "Producer";
    private Repertory mRepertory;

    Producer(Repertory repertory) {
        mRepertory = repertory;
    }

    @Override
    public void run() {
        Object product = new Object();
        mRepertory.produce(product);
    }
}

    消费者Consumer：

public class Consumer implements Runnable {
    private static final String TAG = "Consumer";
    private Repertory mRepertory;

    Consumer(Repertory repertory) {
        mRepertory = repertory;
    }

    @Override
    public void run() {
        mRepertory.consume();
    }
}

    仓库Repertory1：          

public class Repertory1 implements Repertory {
    private static final String TAG = "Repertory1";
    private static final int MAX_SIZE = 100;
    private LinkedList