Java日期格式转换.doc

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1、时间格式转化与计算代码（java）2007年04月13日星期五13:10**

Title:时间格式转化与计算

2、();intyear=rightNow.get(rightNow.YEAR);intmonth=rightNow.get(rightNow.MONTH)+1;intday=rightNow.get(rightNow.DATE);returnyear+"-"+month+"-"+day;}/***取得系统当前时间*@returnStringyyyy年mm月dd日*/publicStringgetCurrentDate1(){CalendarrightNow=Calendar.getInstance();intyear=rightNow.get(rightNow.

3、YEAR);intmonth=rightNow.get(rightNow.MONTH)+1;intday=rightNow.get(rightNow.DATE);returnyear+"年"+month+"月"+day+"日";}/***取得系统当前时间*@returnStringyyyymmdd*/publicStringgetCurrentDate2(){CalendarrightNow=Calendar.getInstance();intyear=rightNow.get(rightNow.YEAR);intmonth=rightNow.get(righ

4、tNow.MONTH)+1;intday=rightNow.get(rightNow.DATE);returnyear+""+month+""+day;}/***取得系统当前时间*@returnStringyyyy-mm*/publicStringgetCurrentDate3(){CalendarrightNow=Calendar.getInstance();intyear=rightNow.get(rightNow.YEAR);intmonth=rightNow.get(rightNow.MONTH)+1;//intday=rightNow.get(rig

5、htNow.DATE);returnyear+"-"+month;}/***取得系统当前时间*@returnStringyyyyMMddhhmmss*/publicStringgetCurrentDate4(){Calendarc=Calendar.getInstance();c.add(c.SECOND,0);return""+c.get(c.YEAR)+""+(c.get(c.MONTH)+1)+""+c.get(c.DATE)+""+c.get(c.HOUR_OF_DAY)+""+c.get(c.MINUTE)+""+c.get(c.SECOND);}/

6、***取得系统当前时间*@returnStringyyyy-MM-ddhh:mm:ss*//*publicStringgetCurrentDate5(){SimpleDateFormatsimpleDateFormat=newSimpleDateFormat("yyyy-MM-ddhh:mm:ss");java.util.Datedate=newjava.util.Date();Stringtime=simpleDateFormat.format(date);returntime;}*//***取得系统当前时间*@returnStringyyyy-MM-ddh

7、h:mm:ss*/publicStringgetCurrentDate5(){Calendarc=Calendar.getInstance();c.add(c.SECOND,0);return""+c.get(c.YEAR)+"-"+(c.get(c.MONTH)+1)+"-"+c.get(c.DATE)+""+c.get(c.HOUR_OF_DAY)+":"+c.get(c.MINUTE)+":"+c.get(c.SECOND);}/***取得系统当前时间常用于订单号*@returnStringyyyyMMddhhmmss*/publicStringgetC

8、urrentDate6(){Calen