How to print current date and time in Java?



Problem Description :


Write a program in Java that prints current date and time.

Concept :


There are 5 ways to print current date and time using following classes in java.
  1. Date - This class instance provides current date and time.
  2. Calendar - getTime() method of this class provides current date and time.
  3. LocalDate - This class instance provides current date.
  4. LocalDateTime - This class instance provides current date and time.
  5. ZonedDateTime - This class instance provides current date, time and timezone.


Note : Java 8 is required to run below code because LocalDate, LocalDateTime and ZonedDateTime classes are part of Java 8 API.

Java Program :


package com.javamultiplex.datetime;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;

/**
 * 
 * @author Rohit Agarwal
 * @category Date and Time
 * @problem How to print current date and time?
 * 
 */
public class CurrentDateAndTime {

 public static void main(String[] args) {

  // Creating Date class instance
  Date date = new Date();
  System.out.println("Current Date and Time by Date class : " + date);

  // Creating Calendar class instance
  Calendar calendar = Calendar.getInstance();
  System.out.println("Current Date and Time by Calendar class : " + calendar.getTime());

  /*
   * Using Java 8 API classes. 
   * 1) LocalDate -> Print date 
   * 2) LocalDateTime  -> Print date and Time 
   * 3) ZonedDateTime -> Print date, time and timezone
   */

  LocalDate localDate = LocalDate.now();
  System.out.println("Current Date by LocalDate class : " + localDate);

  LocalDateTime localDateTime = LocalDateTime.now();
  System.out.println("Current Date and Time by LocalDateTime class : " + localDateTime);

  ZonedDateTime zonedDateTime = ZonedDateTime.now();
  System.out.println("Current Date, Time and Timezone by ZonedDateTime class : " + zonedDateTime);
 }

}



Output :


Output of Java program how to print current date and time.
Output - How to print current date and time in Java?

References :






https://docs.oracle.com/javase/8/docs/api/java/time/ZonedDateTime.html#now--

Thank you friends, I hope you have clearly understood the solution of this problem. If you have any doubt, suggestion or query please feel free to comment below. You can also discuss this solution in our forum.

Tags : Date and Time Problems, Current Date, LocalDate, LocalDateTime, ZonedDateTime, Calendar.

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How to print current date and time in Java? How to print current date and time in Java? Reviewed by Rohit Agarwal on 11/24/2016 Rating: 5

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