Use of timed triggers (timer,timertask)

(API Yue) public class TimerThe extends Object thread uses it to schedule tasks to be performed later in the background thread. You can schedule tasks to execute once, or repeat them periodically. Used to perform all timer tasks sequentially. The timer task should be completed quickly. If a timer task is completed too long, it will "monopolize" the task execution thread of the timer. Thus, this may delay the execution of subsequent tasks, which may be "stacked together" and can be executed quickly and continuously when the aforementioned unfriendly task is finally completed. Simple example: Import java.io.IOException;
Import Java.util.Timer;
Import Java.util.TimerTask;

Import Java.util.Date;

public class Testtimer {
public static void Start () {
Inittimer ();
}

public static void Inittimer () {
Timer T = new timer (); Create a Timer object
TimerTask tt = new TimerTask () {
public void Run () {
System.out.println ("Now" + New Date ());
}
};//creates a TimerTask object, the Timer object invokes the TimerTask run () method

T.schedule (TT, 0, 3000);
while (true) {//This is used to stop this task, or it will loop through the task.
try {
int ch = System.in.read ();
if (CH-' c ' = = 0) {
T.cancel (); Use this method to exit a task

}
catch (IOException e) {
TODO auto-generated Catch block
E.printstacktrace ();
}
}
}

public static void Main (string[] args) {
Start ();
}
}