How to cancel the Timer and timertask using cancel method of Timer class

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CleanUpTimerTask.java

import java.util.TimerTask;

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, 2000);
        System.out.println("Timer has schedule the cleanUpTimerTask...");

        Thread.sleep(6000);

        System.out.println("Going to cancel...");
        /*
         * Terminates this timer, discarding any currently scheduled
         * tasks. Does not interfere with a currently executing task
         * (if it exists). Once a timer has been terminated, its
         * execution thread terminates gracefully, and no more tasks
         * may be scheduled on it.
         */
        timer.cancel();
        System.out.println("Canceled...");
    }

}

Output:

Timer has schedule the cleanUpTimerTask...
Clean up files...
Clean up files...
Going to cancel...
Canceled...

Click the below link to download the code:
https://sites.google.com/site/javaspringram2019/java_spring_2019/TimerDemo_cancel.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java_Spring_2019/tree/master/Java_2019/TimerDemo_cancel

Bitbucket Link:
https://bitbucket.org/ramram43210/java_spring_2019/src/2db5cd1f4e7d5ab55ad7af886d6164700143c614/Java_2019/TimerDemo_cancel/?at=master

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