JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java 8 Duration example.


In the previous page we have seen Period class example. Period deals with date. Similar to Period, Duration deals with time. Like the names suggest Duration represent a quantity or amount of time. Duration uses seconds or nanoseconds to define an amount of time. Duration is most suitable when working with Instants and machine time.

DurationEx
package com.java2novice.datetime;

import java.time.Duration;
import java.time.LocalTime;

public class DurationEx {

	public static void main(String a[]) {

		// create time object with values
		LocalTime givenTime = LocalTime.of(2, 30, 15);
		System.out.println("time: "+givenTime);

		// add 20 minutes and 30 seconds
		LocalTime updatedTime = givenTime.plus(Duration.ofMinutes(20)).plus(Duration.ofSeconds(30));
		System.out.println("updated time: "+updatedTime);

		Duration drt = Duration.between(givenTime, updatedTime);
		System.out.println("difference in seconds: "+drt.getSeconds());
		System.out.println("difference in seconds: "+drt.toMinutes());
	}
}

Output:
time: 02:30:15
updated time: 02:50:45
difference in seconds: 1230
difference in seconds: 20
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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?
Knowledge Centre
Inner class and Anonymous class
Inner class: classes defined in other classes, including those defined in methods are called inner classes. An inner class can have any accessibility including private.

Anonymous class: Anonymous class is a class defined inside a method without a name and is instantiated and declared in the same place and cannot have explicit constructors.
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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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