生产者与消费者

数据

public class Data
{

	/** 集合 **/
	private static HashMap<String, String> table = new HashMap<String, String>();


	/**
	 * 保存
	 */
	public void put()
	{
		synchronized (table)
		{
			if(size() == 0)
			{
				String key = new Random().nextInt() + "";
				String value = new Random().nextInt() + "";
				table.put(key, value);
				System.out.println("~~~生产:" + key);
			}
		}
	}
	/**
	 * 删除
	 */
	public void remove()
	{
		synchronized (table)
		{
			String key = getKey();
			if(key != null)
			{
				table.remove(key);
				System.out.println("消费:" + key);
			}
		}
	}

	/**
	 * 得到某一个key值
	 * @return
	 */
	public String getKey()
	{
		Set<String> keySet = table.keySet();
		Iterator<String> keyIt = keySet.iterator();
		while(keyIt.hasNext())
		{
			return keyIt.next();
		}
		return null;
	}

	/**
	 * 长度
	 * @return
	 */
	public int size()
	{
		return table.size();
	}
}

生产者

public class MakeThread implements Runnable
{
	/** 开关 **/
	private boolean isRun = true;

	Data data = new Data();

	@Override
	public void run()
	{

		while(isRun)
		{
			try
			{
				Thread.sleep(20);

			}
			catch (InterruptedException e)
			{e.printStackTrace();}

			data.put();
		}
	}
}

消费者

public class UseThread implements Runnable
{
	/** 开关 **/
	private boolean isRun = true;

	//数据
	Data data = new Data();

	@Override
	public void run()
	{

		while(isRun)
		{
			try
			{
				Thread.sleep(10);

			}
			catch (InterruptedException e)
			{e.printStackTrace();}

			data.remove();
		}
	}
}