Date format: Difference between revisions
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{{task}}{{Clarified-review}} |
{{task|Text processing}}{{Clarified-review}} |
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Display the current date in the formats of "2007-11-10" and "Sunday, November 10, 2007". |
Display the current date in the formats of "2007-11-10" and "Sunday, November 10, 2007". |
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{{works with|D|DMD 1.026}} |
{{works with|D|DMD 1.026}} |
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{{libheader|Tango}} |
{{libheader|Tango}} |
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< |
<d>module datetimedemo ; |
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import tango.time.Time ; |
import tango.time.Time ; |
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d = g.toTime(2008, 2, 1, 0, 0, 0, 0, g.AD_ERA) ; |
d = g.toTime(2008, 2, 1, 0, 0, 0, 0, g.AD_ERA) ; |
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Stdout.format("{:dddd, MMMM d, yyy}", d).newline ; |
Stdout.format("{:dddd, MMMM d, yyy}", d).newline ; |
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}</ |
}</d> |
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Sample Output: |
Sample Output: |
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<pre>2007-11-10 |
<pre>2007-11-10 |
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=={{header|Java}}== |
=={{header|Java}}== |
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<java>import java.util.Calendar; |
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import java.util.GregorianCalendar; |
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import java.text.DateFormatSymbols; |
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import java.util.Date; |
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import java.text.DateFormat; |
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import java.text.SimpleDateFormat; |
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public class Dates{ |
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public static void main(String[] args){ |
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Calendar now = new GregorianCalendar(); //months are 0 indexed, dates are 1 indexed |
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DateFormatSymbols symbols = new DateFormatSymbols(); //names for our months and weekdays |
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//plain numbers way |
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System.out.println(now.get(Calendar.YEAR) + "-" + (now.get(Calendar.MONTH) + 1) + "-" + now.get(Calendar.DATE)); |
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//words way |
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System.out.print(symbols.getWeekdays()[now.get(Calendar.DAY_OF_WEEK)] + ", "); |
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System.out.print(symbols.getMonths()[now.get(Calendar.MONTH)] + " "); |
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System.out.println(now.get(Calendar.DATE) + ", " + now.get(Calendar.YEAR)); |
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//using DateFormat |
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Date date = new Date(); |
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DateFormat format1 = new SimpleDateFormat("yyyy-MM-dd"); |
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System.out.println(format1.format(date)); |
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DateFormat format2 = new SimpleDateFormat("EEEE, MMMM dd, yyyy"); |
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System.out.println(format2.format(date)); |
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} |
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}</java> |
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} |
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=={{header|OCaml}}== |
=={{header|OCaml}}== |
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=={{header|Perl}}== |
=={{header|Perl}}== |
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{{libheader|POSIX}} |
{{libheader|POSIX}} |
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<perl>use POSIX; |
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print POSIX::strftime('%Y-%m-%d', 0, 0, 0, 10, 10, 107), "\n"; |
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print POSIX::strftime('%A, %B %d, %Y', 0, 0, 0, 10, 10, 107), "\n";</perl> |
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Output with locales '''C''': |
Output with locales '''C''': |
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Actual date: |
Actual date: |
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<perl>use POSIX; |
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print POSIX::strftime('%Y-%m-%d', localtime), "\n"; |
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print POSIX::strftime('%A, %B %d, %Y', localtime), "\n";</perl> |
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Output with locales '''C''': |
Output with locales '''C''': |
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=={{header|PHP}}== |
=={{header|PHP}}== |
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Formatting rules: http://www.php.net/date |
Formatting rules: http://www.php.net/date |
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<php><?php |
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echo date('Y-m-d', time())."\n"; |
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echo date('l, F j, Y', time())."\n"; |
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?></php> |
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=={{header|Python}}== |
=={{header|Python}}== |
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Formatting rules: http://docs.python.org/lib/module-time.html (strftime) |
Formatting rules: http://docs.python.org/lib/module-time.html (strftime) |
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<python>import datetime |
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today = datetime.date.today() |
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# This one is built in: |
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print today.isoformat() |
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# Or use a format string for full flexibility: |
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print today.strftime('%Y-%m-%d')</python> |
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=={{header|Raven}}== |
=={{header|Raven}}== |
Revision as of 14:20, 17 November 2008
You are encouraged to solve this task according to the task description, using any language you may know.
Display the current date in the formats of "2007-11-10" and "Sunday, November 10, 2007".
Ada
<Ada> with Ada.Calendar; use Ada.Calendar; with Ada.Calendar.Formatting; use Ada.Calendar.Formatting; with Ada.Text_IO; use Ada.Text_IO;
procedure Date_Format is
function Image (Month : Month_Number) return String is begin case Month is when 1 => return "January"; when 2 => return "February"; when 3 => return "March"; when 4 => return "April"; when 5 => return "May"; when 6 => return "June"; when 7 => return "July"; when 8 => return "August"; when 9 => return "September"; when 10 => return "October"; when 11 => return "November"; when 12 => return "December"; end case; end Image; function Image (Day : Day_Name) return String is begin case Day is when Monday => return "Monday"; when Tuesday => return "Tuesday"; when Wednesday => return "Wednesday"; when Thursday => return "Thursday"; when Friday => return "Friday"; when Saturday => return "Saturday"; when Sunday => return "Sunday"; end case; end Image; Today : Time := Clock;
begin
Put_Line (Image (Today) (1..10)); Put_Line ( Image (Day_Of_Week (Today)) & ", " & Image (Ada.Calendar.Month (Today)) & Day_Number'Image (Ada.Calendar.Day (Today)) & "," & Year_Number'Image (Ada.Calendar.Year (Today)) );
end Date_Format; </Ada> Sample output:
2008-10-03 Friday, October 3, 2008
C
<C>
- include <stdio.h>
- include <stdlib.h>
- include <time.h>
int main() {
time_t seconds; struct tm *now; seconds = time(NULL); now = localtime(&seconds); printf("%d-%d-%d\n", now->tm_year + 1900, now->tm_mon + 1, now->tm_mday); char *months[] = {"January","February","March","April","May","June","July","August","September","October","November","December"}; char *days[] = {"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"}; printf("%s, %s %d, %d\n",days[now->tm_wday], months[now->tm_mon], now->tm_mday, now->tm_year + 1900);
/* shortcut for default format */ printf("%s", ctime(&seconds));
return 0;
} </C> Sample output:
2008-10-7 Tuesday, October 7, 2008 Tue Oct 7 16:51:40 2008
ColdFusion
<cfset date = createDate( 2007, 11, 10 ) /> #dateFormat( date, "YYYY-MM-DD" )#, #dateFormat( date, "DDDD, MMMM DD, YYYY" )#
D
<d>module datetimedemo ;
import tango.time.Time ; import tango.text.locale.Locale ; import tango.time.chrono.Gregorian ;
import tango.io.Stdout ;
void main() {
Gregorian g = new Gregorian ; Stdout.layout = new Locale; // enable Stdout to handle date/time format Time d = g.toTime(2007, 11, 10, 0, 0, 0, 0, g.AD_ERA) ; Stdout.format("{:yyy-MM-dd}", d).newline ; Stdout.format("{:dddd, MMMM d, yyy}", d).newline ; d = g.toTime(2008, 2, 1, 0, 0, 0, 0, g.AD_ERA) ; Stdout.format("{:dddd, MMMM d, yyy}", d).newline ;
}</d> Sample Output:
2007-11-10 Saturday, November 10, 2007 Friday, February 1, 2008
Forth
: str-table create ( n -- ) 0 do , loop does> ( n -- str len ) swap cells + @ count ; here ," December" here ," November" here ," October" here ," September" here ," August" here ," July" here ," June" here ," May" here ," April" here ," March" here ," February" here ," January" 12 str-table months : .long-date time&date ( s m h D M Y ) >R 1- months type space 1 .r [char] , emit space R> . drop drop drop ;
: .-0 ( n -- n ) [char] - emit dup 10 < if [char] 0 emit then ; : .short-date time&date 1 .r .-0 1 .r .-0 1 .r drop drop drop ;
Haskell
import System.Locale import System.Time format1 :: CalendarTime -> String format1 = formatCalendarTime defaultTimeLocale "%Y-%m-%e" format2 :: CalendarTime -> String format2 = formatCalendarTime defaultTimeLocale "%A, %B %d, %Y" main = do t <- getClockTime >>= toCalendarTime mapM_ putStrLn [format1 t, format2 t]
J
dayNm =: ;:'Sunday Monday Tuesday Wednesday Thursday Friday Saturday' monthNm=: ;:'0 January February March April May June July August September October November December' dateFormat=: 3 : 0 0 dateFormat y NB. default to short format : 'year month date'=. 3{. y select. x case. 0 do. NB. short format YYYY-MM-DD, e.g. '1900-02-28' dashNN=. (('-0' {.~ (3-#)) ,])@ ": (":year),(dashNN month),(dashNN date) case. 1 do. NB. verbose format, e.g. 'Wednesday, February 28, 1900' Y=. year - A =. <. 12%~ 14-month M=. <.12%~31*(month+12*A)-2 D=. 7| date+M+Y+(<.Y%4)+(<.Y%400)-(<.Y%100) (>D{dayNm), ', ',(>month{monthNm),' ',(":date), ', ', ":year end. )
Example:
(dateFormat ,: 1& dateFormat) 1920 12 17 1920-12-17 Friday, December 17, 1920
Java
<java>import java.util.Calendar; import java.util.GregorianCalendar; import java.text.DateFormatSymbols; import java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Dates{ public static void main(String[] args){ Calendar now = new GregorianCalendar(); //months are 0 indexed, dates are 1 indexed DateFormatSymbols symbols = new DateFormatSymbols(); //names for our months and weekdays
//plain numbers way System.out.println(now.get(Calendar.YEAR) + "-" + (now.get(Calendar.MONTH) + 1) + "-" + now.get(Calendar.DATE));
//words way System.out.print(symbols.getWeekdays()[now.get(Calendar.DAY_OF_WEEK)] + ", "); System.out.print(symbols.getMonths()[now.get(Calendar.MONTH)] + " "); System.out.println(now.get(Calendar.DATE) + ", " + now.get(Calendar.YEAR));
//using DateFormat Date date = new Date(); DateFormat format1 = new SimpleDateFormat("yyyy-MM-dd"); System.out.println(format1.format(date)); DateFormat format2 = new SimpleDateFormat("EEEE, MMMM dd, yyyy"); System.out.println(format2.format(date)); } }</java>
OCaml
<ocaml># #load "unix.cma";;
- open Unix;;
- let t = time() ;;
val t : float = 1219997516.
- let gmt = gmtime t ;;
val gmt : Unix.tm =
{tm_sec = 56; tm_min = 11; tm_hour = 8; tm_mday = 29; tm_mon = 7; tm_year = 108; tm_wday = 5; tm_yday = 241; tm_isdst = false}
- Printf.sprintf "%d-%02d-%02d" (1900 + gmt.tm_year) (1 + gmt.tm_mon) gmt.tm_mday ;;
- : string = "2008-08-29"</ocaml>
<ocaml>let months = [| "January"; "February"; "March"; "April"; "May"; "June";
"July"; "August"; "September"; "October"; "November"; "December" |]
let days = [| "Sunday"; "Monday"; "Tuesday"; (* Sunday is 0 *)
"Wednesday"; "Thursday"; "Friday"; "Saturday" |]
- Printf.sprintf "%s, %s %d, %d"
days.(gmt.tm_wday) months.(gmt.tm_mon) gmt.tm_mday (1900 + gmt.tm_year) ;;
- : string = "Friday, August 29, 2008"</ocaml>
Perl
<perl>use POSIX;
print POSIX::strftime('%Y-%m-%d', 0, 0, 0, 10, 10, 107), "\n"; print POSIX::strftime('%A, %B %d, %Y', 0, 0, 0, 10, 10, 107), "\n";</perl>
Output with locales C:
2007-11-10 Saturday, November 10, 2007
Output with locales cs_CZ.UTF-8:
2007-11-10 Sobota, listopad 10, 2007
Actual date: <perl>use POSIX;
print POSIX::strftime('%Y-%m-%d', localtime), "\n"; print POSIX::strftime('%A, %B %d, %Y', localtime), "\n";</perl>
Output with locales C:
2008-02-13 Wednesday, February 13, 2008
PHP
Formatting rules: http://www.php.net/date <php><?php echo date('Y-m-d', time())."\n"; echo date('l, F j, Y', time())."\n"; ?></php>
Python
Formatting rules: http://docs.python.org/lib/module-time.html (strftime)
<python>import datetime today = datetime.date.today()
- This one is built in:
print today.isoformat()
- Or use a format string for full flexibility:
print today.strftime('%Y-%m-%d')</python>
Raven
time int as today
Short form:
today '%Y-%m-%d' date
Long form:
today '%A, %B %d, %Y' date
UNIX Shell
date +"%Y-%m-%d" date +"%A, %B %d, %Y"