java-线程并发库-线程池

线程池是java5的新特性，用来管理线程

public class ThreadPoolTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		/**创建线程池,固定一次执行三个任务 */
//		ExecutorService threadPool = Executors.newFixedThreadPool(3);
		/**创建线程池,非固定，来几个执行几个 */
//		ExecutorService threadPool = Executors.newCachedThreadPool();
		/**创建线程池,只执行单线程，但线程结束后马上重新同一个 */
		ExecutorService threadPool = Executors.newSingleThreadExecutor();
		for(int j=0;j<10;j++){
			final int task = j;
			threadPool.execute(new Runnable() {
				@Override
				public void run() {
					for(int i=0;i<10;i++){
						try {
							Thread.sleep(100);
						} catch (InterruptedException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
						System.out.println(Thread.currentThread().getName() + 
								" is looping " + i + ",task " + task);
					}
				}
			});
		}
		threadPool.shutdown();
	}

}