Date Time Formatting in Java

/**
@author : Charudatta Ekbote
*/

Following Code demonstrates different sample outputs generated using java's DateTime formatting options  

import java.util.Date;
import java.text.SimpleDateFormat;

public class DateFormatDemo
{
public static void main(String[] args)
{
Date date = new Date();

System.out.println(date); // sample output format: Mon May 30 19:48:40 IST 2016

SimpleDateFormat sdf = new SimpleDateFormat("dd/MMM/YYYY-E");
System.out.println(sdf.format(date) ); // sample output format: 30/May/2016-Mon

sdf = new SimpleDateFormat("dd/MM/YYYY");
System.out.println(sdf.format(date) ); // sample output format: 30/05/2016-Mon

sdf = new SimpleDateFormat("E");
System.out.println(sdf.format(date) ); // sample output format: Mon

sdf = new SimpleDateFormat("H:m:s");
System.out.println(sdf.format(date) ); // sample output format: 19:44:29

sdf = new SimpleDateFormat("K:m:sa");
System.out.println(sdf.format(date) ); // sample output format: 7:44:29PM
}
}

Following is the List of Options used by Java to format Date and Time :

Letter	Date or Time Component	Presentation	Examples
G	Era designator	Text	AD
y	Year	Year	1996; 96
Y	Week year	Year	2009; 09
M	Month in year	Month	July; Jul; 07
w	Week in year	Number	27
W	Week in month	Number	2
D	Day in year	Number	189
d	Day in month	Number	10
F	Day of week in month	Number	2
E	Day name in week	Text	Tuesday; Tue
u	Day number of week (1 = Monday, ..., 7 = Sunday)	Number	1
a	Am/pm marker	Text	PM
H	Hour in day (0-23)	Number	0
k	Hour in day (1-24)	Number	24
K	Hour in am/pm (0-11)	Number	0
h	Hour in am/pm (1-12)	Number	12
m	Minute in hour	Number	30
s	Second in minute	Number	55
S	Millisecond	Number	978
z	Time zone	General time zone	Pacific Standard Time; PST; GMT-08:00