BlockingQueue

package com.ixhong.base.thread;

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

public class ArrayBlockingQueueTest {

    public static void main(String[] args) {
        final BlockingQueue<String> queue = new ArrayBlockingQueue<String>(1);
         // final CopyOnWriteArrayList<String> list = new CopyOnWriteArrayList<String>(); for (int i = 0; i < 4; i++) {
            new Thread(new Runnable() {
                @Override
public void run() {
                    while (true) {
                        try {
                             //String log = list.remove(0); String log = queue.take();
                            parseLog(log);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }

            }).start();
        }

        System.out.println( "begin:" + (System.currentTimeMillis() / 1000));
         /*  * 模拟处理16行日志，下面的代码产生了16个日志对象，当前代码需要运行16秒才能打印完这些日志。  * 修改程序代码，开四个线程让这16个对象在4秒钟打完。  */ for (int i = 0; i < 16; i++) {  // 这行代码不能改动 final String log =  "" + (i + 1); // 这行代码不能改动 {
                 //list.add(log); try {
                    queue.put(log);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                 // ArrayBlockingQueueTest.parseLog(log); }
        }
    }

     // parseLog方法内部的代码不能改动 public static void parseLog(String log) {
        System.out.println(log +  ":" + (System.currentTimeMillis() / 1000));

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

}