As we know, the cancel() method is used to terminate this Timer and also discards any scheduled tasks but it does not interfere with any currently executing task or action. Here is an example of the Java Timer class that includes the functionality of the cancel() method. * void schedule(TimerTask task, Date firstTime, long period) * Schedule() method calls for timer class. n() method will be used to perform the action of the task We explicitly need to stop the execution otherwise the run() method will keep on executing. In the main method, we have used the “void schedule(TimerTask task, Date firstTime, long period)” variation of the schedule() method to execute the run() method as many times as we want.

The run() method of TimerTask class is used to print the number of times the execution is done. Inside this TimerTask, we have initialized a variable that will be used to check the number of counts of the execution. Here is an example of the Java Timer that includes the functionality of scheduling the specified task for repeated execution with a fixed delay and the task has some specified start time.įirst of all, we have declared a Helper class that is extending TimerTask class.

void scheduleAtFixedRate(TimerTask task, long delay, long period): It also lines up the task for repeated but at fixed-rate execution and the task starts with a specified delay.

void scheduleAtFixedRate(TimerTask task, Date firstTime, long period): It also lines up the task for repeated fixed-rate execution and the task starts at a specified time.

void schedule(TimerTask task, long delay, long period): It also lines up the task for repeated execution but it starts with a specified delay.

void schedule(TimerTask task, long delay): It also lines up the task for execution after the delay.

void schedule(TimerTask task, Date firstTime, long period): It also lines up the task with a specified start time and then the task undergoes repeated execution.

void schedule(TimerTask task, Date time): It lines up the task that is to be executed at a specified time.

int purge(): After cancellation, the purge() method removes all the canceled tasks from the queue.

void cancel(): This method terminates the current or this Timer and also cancels all the tasks that are currently scheduled.

Given below are the methods with the description that the Java Timer class supports. Timer(String name, boolean isDaemon): It creates a new Timer whose thread has a name specified, and also it is defined to run as a daemon thread. Timer(String name): It creates a new Timer whose thread has already given a name. Timer(boolean isDaemon): It creates a new Timer whose thread has been specified to run as daemon thread. The below constructors are the variations of it.

Timer(): Every time, it creates a new Timer. All the tasks of a Java Timer class are stored in the binary heap.Įxtends Object Constructors With Description Also, many threads can share a single Java Timer class object, thereby making it thread-safe.

Set as timer