JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Create date time with custom values in Java 8.


LocalDateTime is a date-time without a time-zone in the ISO-8601 calendar system, such as 2016-12-03T10:15:30.

LocalDateTime is an immutable date-time object that represents a date-time, often viewed as year-month-day-hour-minute-second. Other date and time fields, such as day-of-year, day-of-week and week-of-year, can also be accessed. Time is represented to nanosecond precision.

This example shows how to create LocalDateTime object with custom object.

CustomLocalDateTimeEx
package com.java2novice.datetime;

import java.time.LocalDateTime;
import java.time.Month;

public class CustomLocalDateTimeEx {

	public static void main(String[] args) {

		// get current date and time
		LocalDateTime currTime = LocalDateTime.now();
		System.out.println("current date time: "+currTime);

		// create date time with given values
		LocalDateTime custDate1 = LocalDateTime.of(2015, 12, 2, 10, 30);
		System.out.println("custum date time: "+custDate1);

		// create another date time with given values
		LocalDateTime custDate2 = LocalDateTime.of(2015, Month.APRIL, 2, 10, 30);
		System.out.println("custum date time: "+custDate2);
	}
}

Output:
current date time: 2015-12-15T15:59:00.712
custum date time: 2015-12-02T10:30
custum date time: 2015-04-02T10:30
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Java-8 Date and Time API Examples

  1. Java 8 LocalDateTime example.
  2. Java 8 ZonedDateTime example.
  3. Java 8 LocalDate example.
  4. Java 8 LocalTime example.
  5. Create date time with custom values in Java 8.
  6. Java 8 Instant (Timestamp) example.
  7. Java 8 Period example.
  8. Java 8 Duration example.
  9. Java 8 Date parsing and formatting example.
  10. How to compare two dates in Java 8?
  11. How to get current date and time Java 8?
  12. How to calculate execution / elapsed time Java 8?
  13. How to convert string to Date Java 8?
  14. How to add/substract days to Date in Java 8?
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What is wrapper class?
Everything in java is an object, except primitives. Primitives are int, short, long, boolean, etc. Since they are not objects, they cannot return as objects, and collection of objects. To support this, java provides wrapper classes to move primitives to objects. Some of the wrapper classes are Integer, Long, Boolean, etc.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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