timer example...Post here...

package com.tiantian.servlet;import com.tiantian.pub.MyTask;import javax.servlet.*;import javax.servlet.http.*;public class TimerListener extends HttpServlet implements        ServletContextListener {    private java.util.Timer timer = null;    public void contextInitialized(ServletContextEvent event) {        timer = new java.util.Timer(true);        timer.schedule(new MyTask(event.getServletContext()), 0, 1000 * 10);    }    public void contextDestroyed(ServletContextEvent event) {        timer.cancel();    }    }

package com.tiantian.pub;import java.util.TimerTask;import javax.servlet.ServletContext;public class MyTask extends TimerTask {    private ServletContext context = null;    public MyTask(ServletContext context) {        this.context = context;    }    public void run() {        context.log("RUNNING..." + System.currentTimeMillis());    }}

1s=1000ms...
if u encountered puzzle, ask reference for advice.