Java get millisecond: system. currenttimemillis () Java get nanosecond: system. nanotime () (used to get very accurate time, recommended !) Java obtains the current date: gregoriancalendar date_1 = (gregoriancalendar) calendar. getinstance (); Java.
The following summarizes the implementation methods for obtaining a specified date in Java. For more information, seeCopy codeThe Code is as follows:Format a Date String --> Date or Data --> String
SimpleDateFormat sdf = new SimpleDateFormat
Local Test Cases:
# there can be no spaces on either side of the equal sign, before the error has been out here
yesterday= ' date-d last-day +%y-%m-%d '
curday= ' Date +%y-%m-%d '
echo "Now time: ' Date ' +%y%m%d%T '"
Date--helpUsage: date [options] ... [+ format]Or: Date [-u|--utc|--universal] [MMDDHHMM[[CC]YY][.SS]]Displays the current time in the given format, or sets the system date.-D,--date= string displays the time described by the specified string, not
use the shell in Linux to get yesterday, tomorrow or many days before the date time -- A- , the: -:xxblogjava-Expert Area Original http://www.blogjava.net/xzclog/archive/2015/12/08/428555.htmlTheme Shell Original address:
Reprint Online ProfileCalendar C = calendar.getinstance ();//Create an instance by default is the current momentC.get (calendar.year);C.get (Calendar.month);C.get (calendar.date);//Get year, month, day of course, you can also note that the month
How to get a summary of dates and times in C + +:Starting with the introduction of the basic concept, this paper discusses the data structure and function used in the C + + time operation, and expounds the timing, time acquisition, time calculation
This article describes how to operate Date and Time objects.
Directory1. Introduction: Describes the Date object.
2. constructor: describes several methods of the constructor of the
Use the shell in Linux to get yesterday, tomorrow, or many days ago:In Linux, the man date-d parameter is relatively vague, the following examples further illustrate:#-D,--date=string display time described by STRING, not ' now '[Email protected]
Date and Time object
Date object, which is the object that operates on the Date and time. The Date object can only operate on the
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