If you want to create your own customized formats for formatting the date, you can use the SimpleDateFormat class.
When you create a SimpleDateFormat object, you specify a pattern String. The contents of the pattern String determine the format of the date and time.
Java Code
import java.text.SimpleDateFormat;
import java.util.Date;
public class FormatDate {
public static void main(String[] args) {
FormatDate fd = new FormatDate();
// For date like Wed, Jun 8, '16
fd.getFormattedDate("EEE, MMM d, ''yy");
// For date like Wednesday, June 08, 2016
fd.getFormattedDate("EEEE, MMMM dd, yyyy");
// For date like 05/08/2016
fd.getFormattedDate("MM/dd/yyyy");
// For date like 08/05/2016
fd.getFormattedDate("dd/MM/yyyy");
// For date like 2016-05-08 AD at 09:42:54 IST
// with era designator (AD in this case) and
// timezone info (IST in this case)
fd.getFormattedDate("yyyy-MM-dd G 'at' hh:mm:ss z");
//For date like 08/May/2016 AD 21:47:28:889 PM
//with AM/PM marker, time in 24 Hr fmt, miliseconds
// also included
fd.getFormattedDate("dd/MMMMM/yyyy GGG HH:mm:ss:SSS a");
// Only time like 21:52:14:096 PM
// in 24 hr format, with mili seconds and AM/PM marker
fd.getFormattedDate("HH:mm:ss:SSS a");
}
public void getFormattedDate(String pattern){
Date today;
String result;
SimpleDateFormat formatter;
// Creating the date format using the given pattern
formatter = new SimpleDateFormat(pattern);
// Getting the date instance
today = new Date();
// formatting the date
result = formatter.format(today);
System.out.println("Pattern: " + pattern +
" Formatted Date - " + result);
}
}
Output
Pattern: EEE, MMM d, ''yy Formatted Date - Sun, May 8, '16
Pattern: EEEE, MMMM dd, yyyy Formatted Date - Sunday, May 08, 2016
Pattern: MM/dd/yyyy Formatted Date - 05/08/2016
Pattern: dd/MM/yyyy Formatted Date - 08/05/2016
Pattern: yyyy-MM-dd G 'at' hh:mm:ss z Formatted Date - 2016-05-08 AD at 10:13:46 IST
Pattern: dd/MMMMM/yyyy GGG HH:mm:ss:SSS a Formatted Date - 08/May/2016 AD 22:13:46:090 PM
Pattern: HH:mm:ss:SSS a Formatted Date - 22:13:46:092 PM
Symbols used for creating the pattern
| Symbol | Meaning | Presentation | Example |
|---|---|---|---|
| G | era designator | Text | AD |
| y | year | Number | 2009 |
| M | month in year | Text & Number | July & 07 |
| d | day in month | Number | 10 |
| h | hour in am/pm (1-12) | Number | 12 |
| H | hour in day (0-23) | Number | 0 |
| m | minute in hour | Number | 30 |
| s | second in minute | Number | 55 |
| S | millisecond | Number | 978 |
| E | day in week | Text | Tuesday |
| D | day in year | Number | 189 |
| F | day of week in month | Number | 2 (2nd Wed in July) |
| w | week in year | Number | 27 |
| W | week in month | Number | 2 |
| a | am/pm marker | Text | PM |
| k | hour in day (1-24) | Number | 24 |
| K | hour in am/pm (0-11) | Number | 0 |
| z | time zone | Text | Pacific Standard Time |
| ' | escape for text | Delimiter | (none) |
| ' | single quote | Literal | ' |
Date Format Pattern Syntax
The number of symbol letters you specify also determines the format.
As exp. symbol for which the presentation style is text if length is 1-3 then abbreviated form is used if length is >= 4 then full form is used. In the above code it can be seen when 'EEE' is given it shows SUN as the day of the week, when 'EEEE' is given then Sunday is displayed.
Same way for month for which presentation style is text/number if length is 1-2 then number form is used when length is 3 (or more) then text form is used.
Source : https://docs.oracle.com/javase/tutorial/i18n/format/simpleDateFormat.html
That's all for this topic How to format date in Java. If you have any doubt or any suggestions to make please drop a comment. Thanks!
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