JAVA EE: How to set year, month, day, hour, min, sec to the date and time using with methods of LocalDateTime

Wednesday 24 January 2018

How to set year, month, day, hour, min, sec to the date and time using with methods of LocalDateTime

Click here to watch on Youtube :
https://www.youtube.com/watch?v=xgQY7yLZqMs&list=UUhwKlOVR041tngjerWxVccw

LocalDateTimeDemo.java

import java.time.LocalDateTime;

public class LocalDateTimeDemo

{

    public static void main(String[] args)

    {

        LocalDateTime localDateTime1 = LocalDateTime.parse("2017-01-03T20:25:30");

        System.out.println("date and Time         = "+localDateTime1);

        LocalDateTime localDateTime2 = localDateTime1.withYear(2018);

        System.out.println("\nYear changed          = "+localDateTime2);

        LocalDateTime localDateTime3 = localDateTime2.withMonth(10);

        System.out.println("Month changed         = "+localDateTime3);

        LocalDateTime localDateTime4 = localDateTime3.withDayOfMonth(25);

        System.out.println("Day changed           = "+localDateTime4);

        LocalDateTime localDateTime5 = localDateTime4.withHour(1);

        System.out.println("Hour changed          = "+localDateTime5);

        LocalDateTime localDateTime6 = localDateTime5.withMinute(10);

        System.out.println("Min changed           = "+localDateTime6);

        LocalDateTime localDateTime7 = localDateTime6.withSecond(20);

        System.out.println("Sec changed           = "+localDateTime7);

        LocalDateTime localDateTime8 = localDateTime7.withNano(50);

        System.out.println("NanoSec changed       = "+localDateTime8);

    }

}

Output

date and Time         = 2017-01-03T20:25:30

Year changed          = 2018-01-03T20:25:30

Month changed         = 2018-10-03T20:25:30

Day changed           = 2018-10-25T20:25:30

Hour changed          = 2018-10-25T01:25:30

Min changed           = 2018-10-25T01:10:30

Sec changed           = 2018-10-25T01:10:20

NanoSec changed       = 2018-10-25T01:10:20.000000050