JDK1.5 线程池

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import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * java 线程池  和 带定时器的线程池 
 */
public class ThreadPoolTest {
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//固定大小的线程池
		//ExecutorService threadPool= Executors.newFixedThreadPool(3);
		//缓存的线程池  池子里面线程 会动态变化
		//ExecutorService threadPool= Executors.newFixedThreadPool(3);
		//单一线程池 .  如何实现 线程死了后,再重新启动.
		ExecutorService threadPool= Executors.newSingleThreadExecutor();
		for (int i = 0; i < 10; i++) {
			final int task=i;
			threadPool.execute(new Runnable(){
				@Override
				public void run() {
					// TODO Auto-generated method stub
					for (int j = 0; j < 10; j++) {
						System.out.println(Thread.currentThread().getName()+" is loop of"+j+" for task of"+task);
					}
				}
			});
		}
		System.out.println(" all of 10 task have committed!");
		//threadPool.shutdown(); // 把任务执行完后就,线程池子就关闭
		//threadPool.shutdownNow(); //不管提交的任务是否执行完, 现在必须关闭
		
		//带定时器的 线程池 
		Executors.newScheduledThreadPool(3).schedule(
				new Runnable() {
					@Override
					public void run() {
						System.out.println("bombing!");
					}
				}, 
				10, 
				TimeUnit.SECONDS);
		
		//固定频率执行某一个任务
		Executors.newScheduledThreadPool(3).scheduleAtFixedRate(
				new Runnable() {
					@Override
					public void run() {
						System.out.println("bombing2!");
					}
				}, 
				10,
				2,
				TimeUnit.SECONDS);
		
		//延迟提交任务
		Executors.newScheduledThreadPool(3).scheduleWithFixedDelay(
				new Runnable() {
					@Override
					public void run() {
						System.out.println("bombing3!");
					}
				}, 
				10,
				2,
				TimeUnit.SECONDS);
		
	}

}