ArrayBlockingQueue使用

【参考文章：】http://www.cnblogs.com/belen/archive/2012/04/13/2446019.html

BlockingQueue 定义了一个FIFO的队列接口，。试图向已满队列中放入元素会导致放入操作受阻塞；试图从空队列中检索元素将导致

类似阻塞。

ArrayBlockingQueue是此接口的一个实现。

API：http://www.ostools.net/uploads/apidocs/jdk-zh/java/util/concurrent/ArrayBlockingQueue.html

下面是一个例子： 两个线程，thread1， thread2， 各自维护队列queue1， queue2， 初始时queue2不阻塞， 之后两个 thread

在自己的queue中加入元素，在对方的queue中take元素，进行十次这样的操作。

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


public class ArrayBlockingCommunication {

	public static void main(String[] args) {
		
		final  Business bussiness  = new Business();
		
		new Thread(new Runnable() {
			public void run() {
				for (int i = 0; i < 10; i++) {
					bussiness.methodForThread1(i);
				}
			}
		}).start();
		
		new Thread(new Runnable() {
			public void run() {
				for (int i = 0; i < 10; i++) {
					bussiness.methodForThread2(i);
				}
			}
		}).start();

	}
	
	static class Business {
		BlockingQueue  queue1 = new ArrayBlockingQueue  (1);
		BlockingQueue  queue2 = new ArrayBlockingQueue  (1);
		
		{
			try {
				queue2.put(1);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		
		public void methodForThread1(int i) {
			try {
				queue1.put(1);
				System.out.println("Thread " + Thread.currentThread().getName() + " is blocking");
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			
			System.out.println("Thread " + Thread.currentThread().getName() + " is running : " + i);
			
			try {
				queue2.take();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			
		}
		
		public void methodForThread2(int i) {
			
			try {
				queue2.put(1);
				System.out.println("Thread " + Thread.currentThread().getName() + " is blocking");
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			
			System.out.println("Thread " + Thread.currentThread().getName() + " is running : " + i);
			
			try {
				queue1.take();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}	
	}

}