Java Reference
In-Depth Information
Discussion
Given two
LocalDate
objects, you can find the difference between them, as a
Period
,
simply using the static
Period.between()
method. You can
toString()
the
Period
or, if
its default format isn't good enough, format the result yourself:
import
import
java.time.LocalDate
java.time.LocalDate
;
import
import
java.time.Period
java.time.Period
;
public
public class
class
DateDiff
DateDiff
{
public
public static
void
main
(
String
[]
args
) {
/** The date at the end of the last century */
LocalDate endofCentury
=
LocalDate
.
of
(
2000
,
12
,
31
);
LocalDate now
=
LocalDate
.
now
();
static
void
Period diff
=
Period
.
between
(
endofCentury
,
now
);
System
.
out
.
printf
(
"The 21st century (up to %s) is %s old%n"
,
now
,
diff
);
System
.
out
.
printf
(
"The 21st century is %d years, %d months and %d days old"
,
diff
.
getYears
(),
diff
.
getMonths
(),
diff
.
getDays
());
}
}
I'm editing this recipe at the end of October 2013; the 20th century A.D. ended at the end of
2000, so the value should be about 12
10
/
12
years, and it is:
$ java datetime.DateDiff
The 21st century (up to 2013-10-28) is P12Y9M28D old
The 21st century is 12 years, 9 months and 28 days old
Because of the API's regularity, you can use the same technique with
LocalTime
or
LocalDateTime
.
See Also
A higher-level way of formatting date/time values is discussed in
Formatting Dates and
