In this blog let’s explore the LocalDate and LocalTime.

LocalDate

LocalDate class is immutable and it doesn’t contain the time of day and also the time zone. It has a static factory method of() which we can use to create the instance:

LocalDate localDate = LocalDate.of(2017, 3, 18);
int year = localDate.getYear(); // 2017
Month month = localDate.getMonth(); // MARCH
int day = localDate.getDayOfMonth(); // 18
DayOfWeek dayOfWeek = localDate.getDayOfWeek();  // TUESDAY
int length = localDate.lengthOfMonth(); // 31 days in March
boolean leap = localDate.isLeapYear(); // false (not a leap year)

We can also get the current date with the now() method.

LocalDate now = LocalDate.now();

We can also access LocalDate values using TemporalField interface. The TemporalField is an interface defining how to access the value of a specific field of a temporal object. For example the ChronoField is the implementation of this class.

int year = localDate.get(ChronoField.YEAR);
int month = localDate.get(ChronoField.MONTH_OF_YEAR);
int day = localDate.get(ChronoField.DAY_OF_MONTH);
int secondOfMinute = localDate.get(ChronoField.SECOND_OF_MINUTE);

[addToAppearHere]

LocalTime

For the time of day we have LocalTime class which has three overloaded static methods of(). So for example:

LocalTime localTime1 = LocalTime.of(13, 12); // hour, minute
LocalTime localTime2 = LocalTime.of(13, 12, 10); // hour, minute, second
LocalTime localTime3 = LocalTime.of(13, 12, 10, 3); // hour, minute, second, nanosecond

So the LocalTime class provides some getter methods to access the values, for example:

LocalTime time = LocalTime.of(11, 20, 12);
int hour = time.getHour();
int minute = time.getMinute();
int second = time.getSecond();
int nano = time.getNano();

The LocalDate and the LocalTime we can create by passing the string representation, for example:

LocalDate date = LocalDate.parse("2017-03-12");
LocalTime time = LocalTime.parse("14:23:12");