In this post, we will see how to Format Date to yyyy-MM-dd in java.
There are multiple ways to format Date to yyyy-MM-dd in java. Let’s go through them.
Table of Contents
Using DateTimeFormatter with LocalDate (Java 8)
To Format Date to yyyy-MM-dd in java:
- Create a
LocalDateTimeobject. - Use
DateTimeFormatter.ofPattern()to specify the patternyyyy-MM-dd - Call
format()method onDateTimeFormatterand passLocalDateTimeobject - Get result in String with date format
yyyy-mm-dd.
Let’s see with the help of example:
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package org.arpit.java2blog; import java.time.LocalDateTime; import java.time.format.DateTimeFormatter; import java.util.Locale; public class FormatLocalDate { public static void main(String[] args) { LocalDateTime ldt = LocalDateTime.now(); String formattedDateStr = DateTimeFormatter.ofPattern("yyyy-MM-dd", Locale.ENGLISH) .format(ldt); System.out.println("Formatted Date in String format: "+formattedDateStr); } } |
Output:
Formatted Date in String format: 2022-05-25
Using SimpleDateFormat
To Format Date to yyyy-MM-dd in java:
- Create Date object
- Create
SimpleDateFormatwith patternyyyy-MM-dd - Call
format()method onSimpleDateFormatand passDateobject - Get result in String with date format yyyy-mm-dd.
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package org.arpit.java2blog; import java.text.SimpleDateFormat; import java.util.Date; public class FormatUsingSimpleDateFormat { public static void main(String[] args) { Date date = new Date(); System.out.println("Original Date: "+date); // Specify format as "yyyy-MM-dd" SimpleDateFormat dmyFormat = new SimpleDateFormat("yyyy-MM-dd"); // Use format method on SimpleDateFormat String formattedDateStr = dmyFormat.format(date); System.out.println("Formatted Date in String format: "+formattedDateStr); } } |
Output:
Original Date: Wed May 25 11:41:27 IST 2022
Formatted Date in String format: 2022-05-25
Formatted Date in String format: 2022-05-25
Further reading:
Using Calendar class
To Format Date to yyyy-MM-dd in java:
- Use
Calendar's setTime()method to set current date - Use calendar class to get day, month and year using
Calendar.get()methods. - Create format yyyy-MM-dd using String concatenation.
This is not a recommended approach as it does not specify format explicitly and is more error prone.
Let’s see with the help of example:
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import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; public class FormatWithCalendar { public static void main(String[] args) { Date date = new Date(); Calendar calendar = new GregorianCalendar(); calendar.setTime(date); int day = calendar.get(Calendar.DAY_OF_MONTH); int month = calendar.get(Calendar.MONTH) + 1; // {0 - 11} int year = calendar .get(Calendar.YEAR); String yyyymmddFormat = (year)+"-"+((month<10)?"0"+month:month) + "-" + ((day<10)?"0"+day:day); System.out.println("Formatted Date in yyyy-MM-dd format: " + yyyymmddFormat); } } |
Output:
Formatted Date in yyyy-MM-dd format: 2022-05-25
Note that we have added 1 after getting month using
calendar.get(Calendar.MONTH)because it returns month from 0 to 11. 0 denotes January and 11 denotes December.
That’s all about how to Format Date to yyyy-MM-dd in java.
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