CODEWITHSUNDEEP
java
Farouk Touzi
Farouk Touzi

Reputation: 3456

Date not correct

I want to display months with the names. So i'm using JODA.jar

This is my code :

   public static void main(String[] args) {
    String date1 = "2013-21-01 14:00:00";
    String date2 = "2013-01-01 14:00:00";
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH);
    Date date11, date22;
    try {
        date11 = sdf.parse(date1);
        System.out.println("Date : " +date11);
        date22 = sdf.parse(date2);
        System.out.println("Date : " +date22);

    DateTime dt1 = new DateTime(date11);
    String monthName1 = dt1.monthOfYear().getAsText(Locale.ENGLISH); 
    DateTime dt2 = new DateTime(date22);
    String monthName2 = dt2.monthOfYear().getAsText(Locale.ENGLISH); 

    System.out.println("String1 : " +monthName1+" "+dt1.getYear());
    System.out.println("String2 : " +monthName2+" "+dt2.getYear());
    }
    catch (ParseException e) {
        e.printStackTrace();
    }                   
    }

In the first date, I put 21 like month, this is not possible. But I have this in the Console :

  Date : Mon Sep 01 14:00:00 GMT+01:00 2014
  Date : Tue Jan 01 14:00:00 GMT+01:00 2013
  String1 : September 2014
  String2 : January 2013

How it can be like this ? Normally it shouldn't show the first date, just the right date, right ?

Upvotes: 2

Views: 247

Answers (3)

Willouz
Willouz

Reputation: 11

21 is 12+9 so by entering this you added 1 year to the date you wanted to set actually.

Upvotes: 0

Sotirios Delimanolis
Sotirios Delimanolis

Reputation: 280178

It's currently rolling over to the next year.

21 - 12 = 9 = September

So that it doesn't rollover, just make it non-lenient

sdf.setLenient(false);

Upvotes: 6

Adrian Wragg
Adrian Wragg

Reputation: 7411

Java date parsing is referred to as lenient - it allows parsing of dates that aren't technically valid, and works out what the user may have been referring to.

In this particular case, it's seen month 21 of 2013, assumed that the user was being lazy in incrementing months, and taken it to mean month 9 of 2014 - September.

More information on leniency can be found in the Java documentation.

Upvotes: 1

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