package com.appmonitor.test;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

public class TimerDemo extends Thread {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		timer();
	
	}
	public static void timer(){
		long timestamp = System.currentTimeMillis();
		Date date = new Date(timestamp);
		Timer timer = new Timer ();
		timer.schedule(new TimerTask() {
			@Override
			public void run() {
				  //currentTimeMillis返回以毫秒为单位的当前时间。
				long timestamp = System.currentTimeMillis();
				Date now = new Date(timestamp);
				SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				//format要被格式化为日期-时间字符串的日期-时间值。
				System.out.println(df.format(now));
			}
		}, 	0, 1000);
	}
	}