Java tutorial
//package com.java2s; import java.text.DecimalFormat; import java.util.Calendar; public class Main { /** * yyyyMMddHHmmss */ public static String getFormatTime2(long time) { Calendar c = Calendar.getInstance(); c.setTimeInMillis(time); String strFileName = getFormatTime3(c); return strFileName; } /** * yyyyMMddHHmmss */ public static String getFormatTime3(Calendar c) { DecimalFormat df = new DecimalFormat("00"); String strFileName = c.get(Calendar.YEAR) + df.format((c.get(Calendar.MONTH) + 1)) + df.format(c.get(Calendar.DAY_OF_MONTH)) + df.format(c.get(Calendar.HOUR_OF_DAY)) + df.format(c.get(Calendar.MINUTE)) + df.format(c.get(Calendar.SECOND)); return strFileName; } }