阻塞队列之实战

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;

/**
 * 阻塞队列之实战（现有程序代码模拟产生16个日志对象，需要16秒才能打印完，
 * 					现添加四个线程用于打印16个日志，用时4秒，如何实现）
 * @author 谭飞
 * @date 2012-02-07
 */
public class ArrayBlockingQueueTest {

	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		final BlockingQueue<String> queue = new ArrayBlockingQueue<String>(1);//实例化阻塞队列对象
		
		for(int i = 0; i < 4; i++)//创建四个线程
		{
			new Thread(new Runnable(){
				@Override
				public void run() {
					while(true)
					{
						try {
							final String log = queue.take();//取得阻塞队列的值
							printLog(log);
						} catch (InterruptedException e) {
							e.printStackTrace();
						}
					}
				}}).start();
		}
		
		System.out.println("开始：" + System.currentTimeMillis()/1000);
		for(int i = 0; i < 16; i++)
		{
			final String log = "" + (i+1);
			//printLog(log);原始
			/*begin 修改*/
			{
				try {
					queue.put(log);//向阻塞队列里加入值
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
			/*end 修改*/
		}
	}
	
	/**
	 * 打印日志
	 * @param log
	 */
	public static void printLog(String log)
	{
		System.out.println(log + ":" + System.currentTimeMillis()/1000);
		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}

}