学步园

import java.text.SimpleDateFormat;<br /> import java.util.Calendar;<br /> public class DateAll {<br /> public static void main(String[] args) throws Exception {<br /> //当前时间<br /> Calendar cal = Calendar.getInstance();<br /> //SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");<br /> SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss G E D F w W a E F");<br /> String mDateTime=formatter.format(cal.getTime());<br /> System.out.println(mDateTime);<br /> //1年前日期<br /> java.util.Date myDate=new java.util.Date();<br /> long myTime=(myDate.getTime()/1000)-60*60*24*365;<br /> myDate.setTime(myTime*1000);<br /> String mDate=formatter.format(myDate);<br /> System.out.println(mDate);<br /> //明天日期<br /> myDate=new java.util.Date();<br /> myTime=(myDate.getTime()/1000)+60*60*24;<br /> myDate.setTime(myTime*1000);<br /> mDate=formatter.format(myDate);<br /> System.out.println(mDate);<br /> //两个时间之间的天数<br /> SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");<br /> java.util.Date date= myFormatter.parse("1883-10-10");<br /> java.util.Date mydate= myFormatter.parse("1899-12-30");<br /> long day=(date.getTime()-mydate.getTime())/(24*60*60*1000);<br /> System.out.println(day);<br /> //加半小时<br /> SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");<br /> java.util.Date date1 = format.parse("2002-02-28 23:16:00");<br /> long Time=(date1.getTime()/1000)+60*30;<br /> date1.setTime(Time*1000);<br /> String mydate1=formatter.format(date1);<br /> System.out.println(mydate1);<br /> //年月周求日期<br /> SimpleDateFormat formatter2 = new SimpleDateFormat("yyyy-MM F E");<br /> java.util.Date date2= formatter2.parse("2003-05 5 星期五");<br /> SimpleDateFormat formatter3 = new SimpleDateFormat("yyyy-MM-dd");<br /> String mydate2=formatter3.format(date2);<br /> System.out.println(mydate2);<br /> //求是星期几<br /> mydate= myFormatter.parse("2007-11-9");<br /> SimpleDateFormat formatter4 = new SimpleDateFormat("E");<br /> String mydate3=formatter4.format(mydate);<br /> System.out.println(mydate3);<br /> }<br /> } </p> <p>本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/Player26/archive/2009/03/04/3955198.aspx