java時(shí)間函數(shù)大全

1、java時(shí)間函數(shù)大全前段時(shí)間，做了一下Java的util包下的函數(shù)測試，覺得這個(gè)時(shí)間類的用法真多，不過也很簡單，這里和大家分享一下。日期類importjava.util.*;importjava.text.*;importpublicclassVeDate/*獲取現(xiàn)在時(shí)間*return返回時(shí)間類型yyyy-MM-ddHH:mm:ss*/publicstaticDategetNowDate()DatecurrentTime=newDate();SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-ddHH:mm:ss")

2、;StringdateString=formatter.format(currentTime);ParsePositionpos=newParsePosition(8);DatecurrentTime_2=formatter.parse(dateString,pos);returncurrentTime_2;*獲取現(xiàn)在時(shí)間*return返回短時(shí)間格式y(tǒng)yyy-MM-dd*/publicstaticDategetNowDateShort()DatecurrentTime=newDate();SimpleDateFormatformatter=newSimpleDateFormat("y

3、yyy-MM-dd");StringdateString=formatter.format(currentTime);ParsePositionpos=newParsePosition(8);DatecurrentTime_2=formatter.parse(dateString,pos);returncurrentTime_2;/*獲取現(xiàn)在時(shí)間*return返回字符串格式y(tǒng)yyy-MM-ddHH:mm:ss*/publicstaticStringgetStringDate()DatecurrentTime=newDate();SimpleDateFormatformatter=ne

4、wSimpleDateFormat("yyyy-MM-ddHH:mm:ss");StringdateString=formatter.format(currentTime);returndateString;/*獲取現(xiàn)在時(shí)間*return返回短時(shí)間字符串格式y(tǒng)yyy-MM-dd*/publicstaticStringgetStringDateShort()DatecurrentTime=newDate();SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-dd");StringdateStrin

5、g=formatter.format(currentTime);returndateString;/*獲取時(shí)間小時(shí)：分;秒HH:mm:ss*return*/publicstaticStringgetTimeShort()SimpleDateFormatformatter=newSimpleDateFormat("HH:mm:ss");DatecurrentTime=newDate();StringdateString=formatter.format(currentTime);returndateString;/* 將長時(shí)間格式字符串轉(zhuǎn)換為時(shí)間yyyy-MM-ddHH:mm

6、:ss*paramstrDate*return*/publicstaticDatestrToDateLong(StringstrDate)SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-ddHH:mm:ss");ParsePositionpos=newParsePosition(0);Datestrtodate=formatter.parse(strDate,pos);returnstrtodate;/* 將長時(shí)間格式時(shí)間轉(zhuǎn)換為字符串yyyy-MM-ddHH:mm:ss*paramdateDate*return*

7、/publicstaticStringdatdateDate)SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-ddHH:mm:ss");StringdateString=formatter.format(dateDate);returndateString;/* 將短時(shí)間格式時(shí)間轉(zhuǎn)換為字符串yyyy-MM-dd*paramdateDate*paramk*return* /publicstaticStringdateDate)SimpleDateFormatformatter=newSimpleDateFormat

8、("yyyy-MM-dd");StringdateString=formatter.format(dateDate);returndateString;/*將短時(shí)間格式字符串轉(zhuǎn)換為時(shí)間yyyy-MM-dd*paramstrDate*return*/publicstaticDatestrToDate(StringstrDate)SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-dd");ParsePositionpos=newParsePosition(0);Datestrtodate=forma

9、tter.parse(strDate,pos);returnstrtodate;/*得到現(xiàn)在時(shí)間*return*/publicstaticDategetNow()DatecurrentTime=newDate();returncurrentTime;/*提取一個(gè)月中的最后一天*paramday*return*/publicstaticDategetLastDate(longday)Datedate=newDate();longdate_3_hm=date.getTime()-3600000*34*day;Datedate_3_hm_date=newDate(date_3_hm);returnd

10、ate_3_hm_date;/*得到現(xiàn)在時(shí)間僅供個(gè)人學(xué)習(xí)參考*return字符串yyyyMMddHHmmss*可以再format中自己拼接顯示的格式，如yyyy-MM-dd或者yyyy/mm/dd*/publicstaticStringgetStringToday()DatecurrentTime=newDate();SimpleDateFormatformatter=newSimpleDateFormat("yyyyMMddHHmmss");StringdateString=formatter.format(currentTime);returndateString;/*

11、得到現(xiàn)在小時(shí)*/publicstaticStringgetHour()DatecurrentTime=newDate();SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-ddHH:mm:ss");StringdateString=formatter.format(currentTime);Stringhour;hour=dateString.substring(11,13);returnhour;/*得到現(xiàn)在分鐘*return*/publicstaticStringgetTime()DatecurrentTime=newDate();SimpleDateFormatformatter=newSimpleDateFormat("yyyy-M