date parsing using formatter.

gistfile1.txt

import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

public class DateParsing{

  public static void main(String[] args) {

    System.setProperty("user.timezone", DateTimeZone.forOffsetHours(8).getID()); //singapore timezone
    final String date = "2009-07-16T19:20:30-05:00";
    String pattern = "yyyy-MM-dd'T'HH:mm:ss'Z'";

    System.out.println("***********************");
    System.out.println("imput date string :" +date);
    System.out.println("imput date formatter patter :" +pattern);
    System.out.println("system timezone :" + System.getProperty("user.timezone"));
    System.out.println("***********************");
    System.out.println();

    System.out.println("------------------------------------------------ Z with quote");
    try {
      DateTimeFormatter dtf = DateTimeFormat.forPattern(pattern);
      DateTime dateTime = dtf.parseDateTime(date);
      System.out.println(dateTime);
    } catch (Exception e) {
      System.out.println();
      System.out.println("X X X X does not work: " + e.getMessage());
      System.out.println();
    }


    System.out.println("------------------------------------------------ Z without quote");
    {
      pattern = "yyyy-MM-dd'T'HH:mm:ssZ";
      DateTimeFormatter dtf = DateTimeFormat.forPattern(pattern);
      DateTime dateTime = dtf.parseDateTime(date);
      System.out.println(dateTime);
      System.out.println();
    }

    System.out.println("------------------------------------------------ Z without quote and offset parsed i.e. using timezone in date string");
    {
      pattern = "yyyy-MM-dd'T'HH:mm:ssZ";
      DateTimeFormatter dtf = DateTimeFormat.forPattern(pattern).withOffsetParsed();
      DateTime dateTime = dtf.parseDateTime(date);
      System.out.println(dateTime);
      System.out.println();
    }


  }
}