CODEWITHSUNDEEP
java
user2025856
user2025856

Reputation: 9

bug in java for gregorian calendar

I am trying to add 89 days to CurrentDate through GregorianCalendar which is returning 31/04/2015. Below is code snippet.

Calendar now = Calendar.getInstance(); 
String dt="31012013";  
now.set(Integer.parseInt(dt.substring(4)),Integer.parseInt(dt.substring(2,4)),Integer.parseInt(dt.substring(0,2))); 
now.add(Calendar.DATE, 89); 
String matdate=Integer.toString(now.get(Calendar.DATE))+ "/"+ (now.get(Calendar.MONTH) ) +"/" + now.get(Calendar.YEAR);

After executing this code, matdate value is coming as 31/04/2013

Upvotes: 0

Views: 920

Answers (1)

Evgeniy Dorofeev
Evgeniy Dorofeev

Reputation: 135992

This is because java.util.Calendar months start with 0 not 1, that is, 4 is May. Besides the best way to format dates is java.text.SimpleDateFormat

    String matdate = new SimpleDateFormat("dd/MM/yyyy").format(now.getTime()));

Or better use Joda-Time library for calendar and time related codes.

Upvotes: 5

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