Java format date to string or string to Date__java

Reference class: java.text
Class DateFormat

Java.lang.Object
  java.text.Format
      java.text.DateFormat

all implemented interfaces:Serializable, cloneable child classes are directly known:SimpleDateFormat

Construction Method Summary
Protected	DateFormat () Create a new DateFormat.

Letters	date or time element	represents	Sample
G	Era Marker	Text	AD
Y	Years	Year	1996; 96
M	Months of the year	Month	July; June June; 07
W	Number of weeks in the year	Number	27
W	Number of weeks in the month	Number	2
D	Days in the year	Number	189
D	Days in the month	Number	10
F	Weeks in the month	Number	2
E	Days in the week	Text	Tuesday; Tue
A	AM/PM Mark	Text	Pm
H	Number of hours in a day (0-23)	Number	0
K	Number of hours in a day (1-24)	Number	24
K	Number of hours in am/pm (0-11)	Number	0
H	Number of hours in am/pm (1-12)	Number	12
M	Number of minutes in the hour	Number	30
S	Number of seconds in minutes	Number	55
S	Number of milliseconds	Number	978
Z	Time	General Time Zone	Pacific Standard time; PST; gmt-08:00
Z	Time	RFC 822 Time Zone	-0800

date and time patterns	Results
"YYYY. Mm.dd G ' at ' HH:mm:ss z '	2001.07.04 AD at 12:08:56 PDT
"EEE, MMM D, ' yy"	Wed, April 4, ' 01
"H:mm a"	12:08 PM
"HH ' o ' clock ' A, zzzz"	O ' clock PM, Pacific Daylight Time
"K:mm A, z"	0:08 PM, PDT
"Yyyyy. MMMMM.DD GGG hh:mm AAA "	02001.july.04 AD 12:08 PM
"EEE, D MMM yyyy HH:mm:ss Z"	Wed, 4 June 2001 12:08:56-0700
"Yymmddhhmmssz"	010704120856-0700
"Yyyy-mm-dd ' T ' HH:mm:ss." Sssz "	2001-07-04t12:08:56.235-0700

String

format (date date) Formats a date/time string.

Date	Parse (String Source) Parse the text from the beginning of the given string to generate a date

public static void Main (string[] args) throws parseexception ... {

The string convert to date according the format string
Date date = new Date ();
SimpleDateFormat strtodate = new SimpleDateFormat ("Yyyy-mm-dd-hh:mm:ss");
Parse format String to date
Date = Strtodate.parse ("2000-12-11-06:23:12");
SYSTEM.OUT.PRINTLN (date);

The date convert to format string according the format string
SimpleDateFormat datetostr = new SimpleDateFormat ("Dd/mm/yyyy-hh:mm:ss");
Parse date to format String
String temp = Datetostr.format (date);
SYSTEM.OUT.PRINTLN (temp);

}

Mon Dec 06:23:12 GMT 2000
11/12/2000-06:23:12