Common Java latency methods and java latency Methods

Common Java latency methods and java latency Methods

1. If Thread is used, iu cannot be terminated.

new Thread(new Runnable() {            public void run() {                while (true) {                    test();                    try {                        Thread.sleep(500);                    } catch (InterruptedException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    }                }            }            private void test() {                // TODO Auto-generated method stub            }            public Runnable start() {                // TODO Auto-generated method stub                return null;            }        }.start());

2. Or use the ready-made

Javax. swing. Timer timer = new javax. swing. Timer (500, new ActionListener () {public void actionreceivmed (ActionEvent e) {repaint ();}};

Timer. start ();

3. the following method tests the non-thread latency of java.

Import java. awt. robot; import java. util. date; public class test {public static void main (String [] args) throws Exception {Robot r = new Robot (); System. out. println ("before delay:" + new Date (). toString (); r. delay( 2000); System. out. println ("after delay:" + new Date (). toString ());}}

 

4. Use the following TimeTask class (specified latency) to obtain the source code of the enterprise framework 【]

The sleep () in java is not accurate and timed. TimeTask can be: the following small program:

Import java. util. *; public class test {public static void main (String [] args) {Timer timer = new Timer (); // instantiate the Timer class timer. schedule (new TimerTask () {public void run () {System. out. println ("quit"); this. cancel () ;}}, 5000); // a hundred milliseconds System. out. println ("the program automatically exits after 5 seconds ");}}