比如:現在是2004-03-26 13:31:40
過去是:2004-01-02 11:30:24
我現在要獲得兩個日期差,差的形式為:XX天XX小時XX分XX秒
方法一:
Java代碼
- DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- try
- {
- Date d1 = df.parse("2004-03-26 13:31:40");
- Date d2 = df.parse("2004-01-02 11:30:24");
- long diff = d1.getTime() - d2.getTime();
- long days = diff / (1000 * 60 * 60 * 24);
- }
- catch (Exception e)
- {
- }
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");try{ Date d1 = df.parse("2004-03-26 13:31:40"); Date d2 = df.parse("2004-01-02 11:30:24"); long diff = d1.getTime() - d2.getTime(); long days = diff / (1000 * 60 * 60 * 24);}catch (Exception e){}
方法二:
Java代碼
- SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- java.util.Date now = df.parse("2004-03-26 13:31:40");
- java.util.Date date=df.parse("2004-01-02 11:30:24");
- long l=now.getTime()-date.getTime();
- long day=l/(24*60*60*1000);
- long hour=(l/(60*60*1000)-day*24);
- long min=((l/(60*1000))-day*24*60-hour*60);
- long s=(l/1000-day*24*60*60-hour*60*60-min*60);
- System.out.println(""+day+"天"+hour+"小時"+min+"分"+s+"秒");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); java.util.Date now = df.parse("2004-03-26 13:31:40"); java.util.Date date=df.parse("2004-01-02 11:30:24"); long l=now.getTime()-date.getTime(); long day=l/(24*60*60*1000); long hour=(l/(60*60*1000)-day*24); long min=((l/(60*1000))-day*24*60-hour*60); long s=(l/1000-day*24*60*60-hour*60*60-min*60); System.out.println(""+day+"天"+hour+"小時"+min+"分"+s+"秒");
方法三:
Java代碼
- SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- java.util.Date begin=dfs.parse("2004-01-02 11:30:24");
- java.util.Date end = dfs.parse("2004-03-26 13:31:40");
- long between=(end.getTime()-begin.getTime())/1000;//除以1000是為了轉換成秒
- long day1=between/(24*3600);
- long hour1=between%(24*3600)/3600;
- long minute1=between%3600/60;
- long second1=between%60/60;
- System.out.println(""+day1+"天"+hour1+"小時"+minute1+"分"+second1+"秒");
SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); java.util.Date begin=dfs.parse("2004-01-02 11:30:24"); java.util.Date end = dfs.parse("2004-03-26 13:31:40"); long between=(end.getTime()-begin.getTime())/1000;//除以1000是為了轉換成秒 long day1=between/(24*3600); long hour1=between%(24*3600)/3600; long minute1=between%3600/60; long second1=between%60/60; System.out.println(""+day1+"天"+hour1+"小時"+minute1+"分"+second1+"秒");
====================================================
java 比較時間大小
Java代碼
- String s1="2008-01-25 09:12:09";
- String s2="2008-01-29 09:12:11";
- java.text.DateFormat df=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- java.util.Calendar c1=java.util.Calendar.getInstance();
- java.util.Calendar c2=java.util.Calendar.getInstance();
- try
- {
- c1.setTime(df.parse(s1));
- c2.setTime(df.parse(s2));
- }catch(java.text.ParseException e){
- System.err.println("格式不正確");
- }
- int result=c1.compareTo(c2);
- if(result==0)
- System.out.println("c1相等c2");
- else if(result<0)
- System.out.println("c1小於c2");
- else
- System.out.println("c1大於c2");
String s1="2008-01-25 09:12:09";String s2="2008-01-29 09:12:11";java.text.DateFormat df=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");java.util.Calendar c1=java.util.Calendar.getInstance();java.util.Calendar c2=java.util.Calendar.getInstance();try{c1.setTime(df.parse(s1));c2.setTime(df.parse(s2));}catch(java.text.ParseException e){System.err.println("格式不正確");}int result=c1.compareTo(c2);if(result==0)System.out.println("c1相等c2");else if(result<0)System.out.println("c1小於c2");elseSystem.out.println("c1大於c2");
//時間格式轉換
Java代碼
- FastDateFormat df = FastDateFormat.getInstance("yyyy-MM-dd HH:mm:ss");
- String date = df.format(java.util.Date());
FastDateFormat df = FastDateFormat.getInstance("yyyy-MM-dd HH:mm:ss");String date = df.format(java.util.Date());