https://www.youtube.com/watch?v=rQd1BZNSBiA&list=UUhwKlOVR041tngjerWxVccw
CleanUpTimerTask.java
import java.util.TimerTask;
public class CleanUpTimerTask extends TimerTask
{
public void run()
{
System.out.println("Clean up files...");
}
}
public class CleanUpTimerTask extends TimerTask
{
public void run()
{
System.out.println("Clean up files...");
}
}
TimerDemo.java
import java.util.Timer;
import java.util.TimerTask;
public class TimerDemo
{
public static void main(String[] args) throws InterruptedException
{
TimerTask cleanUpTimerTask = new CleanUpTimerTask();
Timer timer = new Timer();
timer.scheduleAtFixedRate(cleanUpTimerTask, 3000, 1000);
System.out.println("Timer has schedule the cleanUpTimerTask...");
Thread.sleep(5000);
System.out.println("Going to cancel...");
timer.cancel();
/*
* Removes all cancelled tasks from this timer's task queue.
* Calling this method has no effect on the behavior of the
* timer, but eliminates the references to the cancelled tasks
* from the queue. If there are no external references to
* these tasks, they become eligible for garbage collection.
*
* Most programs will have no need to call this method. It is
* designed for use by the rare application that cancels a
* large number of tasks.
*
* Returns:
*
* the number of tasks removed from the queue.
*/
System.out.println("purge value :" + timer.purge());
}
}
import java.util.TimerTask;
public class TimerDemo
{
public static void main(String[] args) throws InterruptedException
{
TimerTask cleanUpTimerTask = new CleanUpTimerTask();
Timer timer = new Timer();
timer.scheduleAtFixedRate(cleanUpTimerTask, 3000, 1000);
System.out.println("Timer has schedule the cleanUpTimerTask...");
Thread.sleep(5000);
System.out.println("Going to cancel...");
timer.cancel();
/*
* Removes all cancelled tasks from this timer's task queue.
* Calling this method has no effect on the behavior of the
* timer, but eliminates the references to the cancelled tasks
* from the queue. If there are no external references to
* these tasks, they become eligible for garbage collection.
*
* Most programs will have no need to call this method. It is
* designed for use by the rare application that cancels a
* large number of tasks.
*
* Returns:
*
* the number of tasks removed from the queue.
*/
System.out.println("purge value :" + timer.purge());
}
}
Output:
Timer has schedule the cleanUpTimerTask...
Clean up files...
Clean up files...
Clean up files...
Going to cancel...
purge value :0
Clean up files...
Clean up files...
Clean up files...
Going to cancel...
purge value :0
Click the below link to download the code:
https://sites.google.com/site/javaspringram2019/java_spring_2019/TimerDemo_purge.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java_Spring_2019/tree/master/Java_2019/TimerDemo_purge
Bitbucket Link:
https://bitbucket.org/ramram43210/java_spring_2019/src/2db5cd1f4e7d5ab55ad7af886d6164700143c614/Java_2019/TimerDemo_purge/?at=master
See also:
No comments:
Post a Comment