Formatting Dates using a Format class (or otherwise if )

Question

i want to use standard class called DateFormat which has subclass SimpleDateFormat TO write a method called convert which returns a String in the form dd.mm.yy: when passed a GregorianCalendar with a specific date

public String convert (Calendar gc) { ... }

For example, when myGC is a GregorianCalendar variable representing the 25th of December 2006, String s = convert(myGC); should set s to the string "25.12.06".

and i'm having trouble to write a convert method on this

"I'm having trouble to write a convert method on this" -- perhaps you want to show us what you've tried, and tell us what trouble the code is having? — Hovercraft Full Of Eels, May 19 '11 at 22:27

score 0 · Answer 1 · edited Mar 07 '13 at 03:54

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Why not just use a pattern like this one "dd.MM.yy" in your SimpleDateFormat ?

DateFormat dateFormatter = new SimpleDateFormat("dd.MM.yy");
String myDate = dateFormatter.format(cal.getTime());

edited Mar 07 '13 at 03:54

dplante

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answered May 19 '11 at 22:26

planetjones

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score 0 · Answer 2 · answered May 19 '11 at 22:26

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public String convert(Calendar c) {
  return new SimpleDateFormat("dd.MM.yy").format(c.getTime());
}

Eventually you'll want to store that SimpleDateFormat as a member (for example) if performance becomes a concern.

answered May 19 '11 at 22:26

maerics

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...but watch the concurrency, if it could be an issue (when storing as a member) – planetjones May 19 '11 at 22:30
Commons lang has a thread-safe mostly compatible version called FastDateFormat – MJB May 19 '11 at 23:15

Formatting Dates using a Format class (or otherwise if )

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