Example: Consider a GregorianCalendar
originally set to December 31, 1999. Calling {@link #roll(int,boolean) roll(Calendar.MONTH, true)}sets the calendar to January 31, 1999. The YEAR
field is unchanged because it is a larger field than MONTH
.
true
if rolling up, false
otherwise.
@exception IllegalArgumentException if field
isZONE_OFFSET
, DST_OFFSET
, or unknown, or if any calendar fields have out-of-range values in non-lenient mode.
@see #add(int,int)
@see #set(int,int)
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