New Date Time API Example In Java.

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Here we learn New date time api of java-8.

import java.time.DayOfWeek;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.Month;
import java.time.OffsetTime;
import java.time.Year;

public class NewDateAndTimeAPI {

 public static void main(String[] args) {
  System.out.println("WOKING WITH DATES\n--------------------------");
  // to increase date by plus 1
  LocalDate tommarowDate = LocalDate.now().plusDays(1);
  System.out.println("NEXT DAY DATE\t:"+tommarowDate);
  
  // to increase month by plus 1
  LocalDate nextMonthDate = LocalDate.now().plusMonths(1);
  System.out.println("NEXT MONTH DATE\t:"+nextMonthDate);
  
  // to increase year by plus 1
  LocalDate nextYearDate = LocalDate.now().plusYears(1);
  System.out.println("NEXT YEAR DATE\t:"+nextYearDate);
  
  //to increase date day and year all by plus 1
  LocalDate next = LocalDate.now().plusDays(1).plusMonths(1).plusYears(1);
  System.out.println("DATE DAY AND YEAR ALL INCREASES BY PLUS 1 : "+next);
  
  //to get only current year
  Year currentYear = Year.now();
  System.out.println("CURRENT YEAR\t:"+currentYear);
  
  //to get only current month
  Month currentMonth = LocalDate.now().getMonth();
  System.out.println("CURRENT MONTH\t:"+currentMonth);
  
  //to get only current date
  int currentDate = LocalDate.now().getDayOfMonth();
  System.out.println("TODAY DATE\t:"+currentDate);
  
  //to get only current week day
  DayOfWeek week = LocalDate.now().getDayOfWeek();
  System.out.println("TODAY DAY OF WEEK\t:"+week);
  
  //to check weather current or any year is leap year or not
  System.out.println("CURRENY YEAR IS LEAP YEAR OR NOT :                      "+LocalDate.now().isLeapYear());
  
  //to check manually any year is leap or not
  boolean checkLeap = Year.isLeap(2017);
  System.out.println("MANNUALLY CHECKING 2017 IS LEAP OR NOT : "+checkLeap);
  
  System.out.println("---------------------------------\nWORKING WITH TIME\n---------------------------------");
  // to know current time only without date
  LocalTime currentTime = LocalTime.now();
  System.out.println("CURRENT TIME\t:"+currentTime);
  
  // to know current hour from current time
  int currentHour = LocalTime.now().getHour();
  System.out.println("CURRENT HOUR\t:"+currentHour);
  
  // to know current minute from current time
  int currentMinute = LocalTime.now().getMinute();
  System.out.println("CURRENT MINUTE\t:"+currentMinute);
  
  // to know current second from current time
  int currentSecond = LocalTime.now().getSecond();
  System.out.println("CURRENT SECOND\t:"+currentSecond);
  
  // to know current second from current time
  int currentMillisecond = LocalTime.now().getNano();
  System.out.println("CURRENT NANO SECOND\t:"+currentMillisecond);
  
  System.out.println("---------------------------------\nWORKING WITH DATE & TIME\n---------------------------------");
  
  // to know current date and time
  LocalDateTime dateTime = LocalDateTime.now();
  System.out.println("CURRENT DATE AND TIME\t:"+dateTime);
  
  System.out.println("---------------------------------\nWORKING WITH TIMESTAMP\n---------------------------------");
  
  // to work with timestamp
  Instant ins = Instant.now();
  System.out.println(ins);
  
  OffsetTime off = OffsetTime.now();
  System.out.println(off);
 }

}

Program Output :-

WOKING WITH DATES
--------------------------
NEXT DAY DATE :2016-10-06
NEXT MONTH DATE :2016-11-05
NEXT YEAR DATE :2017-10-05
DATE DAY AND YEAR ALL INCREASES BY PLUS 1 : 2017-11-06
CURRENT YEAR :2016
CURRENT MONTH :OCTOBER
TODAY DATE :5
TODAY DAY OF WEEK :WEDNESDAY
CURRENY YEAR IS LEAP YEAR OR NOT :                      true
MANNUALLY CHECKING 2017 IS LEAP OR NOT : false
---------------------------------
WORKING WITH TIME
---------------------------------
CURRENT TIME :15:07:21.976
CURRENT HOUR :15
CURRENT MINUTE :7
CURRENT SECOND :21
CURRENT NANO SECOND :976000000
---------------------------------
WORKING WITH DATE & TIME
---------------------------------
CURRENT DATE AND TIME :2016-10-05T15:07:21.976
---------------------------------
WORKING WITH TIMESTAMP
---------------------------------
2016-10-05T22:07:21.976Z

15:07:21.976-07:00