java 线程实例

java 线程实例  

package concurrent; import static java.util.concurrent.TimeUnit.SECONDS; import java.util.Date; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.ScheduledFuture; public class TestScheduledThread { public static void main(String[] args) { final ScheduledExecutorService scheduler = Executors .newScheduledThreadPool(2); final Runnable beeper = new Runnable() { int count = 0; public void run() { System.out.println(new Date() + ” beep ” + (++count)); } }; // 1秒钟后运行，并每隔2秒运行一次 final ScheduledFuture beeperHandle = scheduler.scheduleAtFixedRate( beeper, 1, 2, SECONDS); // 2秒钟后运行，并每次在上次任务运行完后等待5秒后重新运行 final ScheduledFuture beeperHandle2 = scheduler .scheduleWithFixedDelay(beeper, 2, 5, SECONDS); // 30秒后结束关闭任务，并且关闭Scheduler scheduler.schedule(new Runnable() { public void run() { beeperHandle.cancel(true); beeperHandle2.cancel(true); scheduler.shutdown(); } }, 30, SECONDS); } }