The below program converts the String-to-Date and Date-to-String using joda time library. Joda Time library is a 3rd party jar and its very easy and compact to use for such conversion. Download the joda jar from https://github.com/JodaOrg/joda-time/releases
Example :-
package jdevelopersguide.lab;
import java.util.Date;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
public class ConvertToDate {
/**
* @param args
*/
public static void main(String[] args) {
String date="2015-04-07";
DateTime jodaTimeDate=DateTimeFormat.forPattern("yyyy-mm-dd").parseDateTime(date);
System.out.println("Joda Time Date is::"+jodaTimeDate);
//Convert Joda DateTime to Java Date
Date javaDate=jodaTimeDate.toDate();
System.out.println("Converted Java Date is:::"+javaDate);
//Convert Java Date to String
String convertedDate=DateTimeFormat.forPattern("dd-mm-yyyy").print(javaDate.getTime());
System.out.println("Converted Java Date to String::::"+convertedDate);
}
}
Output :-
Joda Time Date is::2015-01-07T00:04:00.000+11:00
Converted Java Date is:::Wed Jan 07 00:04:00 EST 2015
Converted Java Date to String::::07-04-2015
The Pattern is really very simple and you can use as per your requirements. There are many pattens are there as follows :-
The pattern syntax is mostly compatible with java.text.SimpleDateFormat - time zone names cannot be parsed and a few more symbols are supported. All ASCII letters are reserved as pattern letters, which are defined as follows:
Symbol Meaning Presentation Examples ------ ------- ------------ ------- G era text AD C century of era (>=0) number 20 Y year of era (>=0) year 1996 x weekyear year 1996 w week of weekyear number 27 e day of week number 2 E day of week text Tuesday; Tue y year year 1996 D day of year number 189 M month of year month July; Jul; 07 d day of month number 10 a halfday of day text PM K hour of halfday (0~11) number 0 h clockhour of halfday (1~12) number 12 H hour of day (0~23) number 0 k clockhour of day (1~24) number 24 m minute of hour number 30 s second of minute number 55 S fraction of second number 978 z time zone text Pacific Standard Time; PST Z time zone offset/id zone -0800; -08:00; America/Los_Angeles ' escape for text delimiter '' single quote literal '
You can find more details in joda site.
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