package datetime;

import java.time.LocalDateTime;

import java.time.ZoneOffset;

public class DateTime {

public static void main(String[] args) {

LocalDateTime dt = LocalDateTime.now();

System.out.println(dt);

System.out.println(dt.getMonth());

System.out.println(dt.getDayOfWeek());

dt = dt.plusDays(2);

System.out.println(dt.getDayOfWeek());

dt = dt.plusHours(5).plusMinutes(10);

System.out.println(dt);

System.out.println(dt.atOffset(ZoneOffset.ofHours(-11)));

dt = dt.minusWeeks(20);

System.out.println(dt);

dt = dt.withDayOfMonth(4) .withYear(2009);

System.out.println(dt);

}

}

package datetime;

import java.time.Month;

import java.time.MonthDay;

import java.time.Year;

public class YearMonth {

public static void main(String[] args) {

Year y = Year.now();

System.out.println(y.isLeap());

System.out.println(y.isBefore(Year.of(2013)));

System.out.println(y.isAfter(Year.parse("2013")));

MonthDay md = MonthDay.of(Month.FEBRUARY, 29);

System.out.println(md.atYear(2011));

System.out.println(md.isValidYear(2012));

System.out.println(md.isValidYear(2013));

}

}

package datetime;

import java.time.Instant;

import java.time.temporal.ChronoUnit;

public class InstantExample {

public static void main(String[] args) {

Instant now = Instant.now();

System.out.println("Epoch seconds = "+ now.getEpochSecond());

System.out.println("Offset nanoseconds = "+ now.getNano());

System.out.println(now.toString());

now = now.minusSeconds(86400 );

System.out.println(now.toString());

System.out.println(now.until(Instant.now(), ChronoUnit.HOURS));

}

}

package datetime;

import java.time.Duration;

import java.time.Instant;

public class Durations {

public static void main(String[] args) {

Instant i1 = Instant.now();

try {

Thread.sleep(1050L);

} catch (InterruptedException ex) {

}

Instant i2 = Instant.now();

Duration d = Duration.between(i1, i2);

System.out.printf("%d seconds and %d nanoseconds elapsed\n",

d.getSeconds(), d.getNano());

}

}

package datetime;

import java.time.LocalDate;

import java.time.Month;

import java.time.Period;

public class Periods {

public static void main(String[] args) {

LocalDate ldt1 = LocalDate.of(2008, Month.JANUARY, 22);

LocalDate ldt2 = LocalDate.of(2014, Month.MARCH, 12);

Period p = Period.between(ldt1, ldt2);

System.out.printf("%d years, %d months, %d days\n",

p.getYears(), p.getMonths(), p.getDays());

}

}

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMM dd yyyy");

LocalDate ldt = LocalDate.parse("Jan 22 2014", formatter);

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMM dd yyyy");

Year year = Year.parse("Jan 22 2014", formatter);

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMM dd yyyy");

LocalDateTime ldt = LocalDateTime.parse("Jan 22 2014", formatter);

LocalDate ld = LocalDate.now();

ld.format(DateTimeFormatter.ofPattern("yyyy MM"));

LocalDate ld = LocalDate.now();

ld.format(DateTimeFormatter.ofPattern("yyyy MM dd hh"));

LocalDate ld = LocalDate.now();

ld.format(DateTimeFormatter.ofLocalizedDate(FormatStyle.SHORT));