dcsimg
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX


advertisement
 

Tip: Expore the TemporalAdjusters Class in Java

Language: Java, Expertise: Intermediate - Learn how to easily compute dates in Java.


advertisement

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


TemporalAdjusters is a class in Java that is oriented towards bettering the options of Calendar. You can easily compute the dates of firstDayOfNextMonth, lastDayOfMonth, next Wednesday, etc.

TemporalAdjusters have many more methods defined and it is good to explore a few of them yourself. The API is available at https://docs.oracle.com/javase/8/docs/api/java/time/temporal/TemporalAdjusters.html.

import java.time.LocalDate;
import java.time.DayOfWeek;
import java.time.temporal.TemporalAdjusters;

public class UnderstandingTemporalAdjusters 
{

   public static void main(String args[]) {
      UnderstandingTemporalAdjusters understandingTemporalAdjusters = new UnderstandingTemporalAdjusters();
      understandingTemporalAdjusters.proceed();
   }
   
   public void proceed() 
   {
      //Today
      LocalDate today = LocalDate.now();
      System.out.println("Today's date: " + today);

      //Last day of current month
      LocalDate lastDayOfMonth = today.with(TemporalAdjusters.lastDayOfMonth());
      System.out.println("lastDayOfMonth : " + lastDayOfMonth);

      //First day of next month
      LocalDate firstDayOfNextMonth = today.with(TemporalAdjusters.firstDayOfNextMonth());
      System.out.println("firstDayOfNextMonth : " + firstDayOfNextMonth);      

      //Next Wednesday
      LocalDate nextWednesday = today.with(TemporalAdjusters.next(DayOfWeek.WEDNESDAY));
      System.out.println("Next Wednesday is on: " + nextWednesday);
      
   }
}

/*

Expected output:

[root@mypc]# java UnderstandingTemporalAdjusters
Today's date: 2019-02-21
lastDayOfMonth : 2019-02-28
firstDayOfNextMonth : 2019-03-01
Next Wednesday is on: 2019-02-27

*/

 

Visit the DevX Tip Bank

 





   
Sridhar M S. is a Java developer from Bangalore, India. He holds a master's degree in Computer Science.
Thanks for your registration, follow us on our social networks to keep up-to-date