CODEWITHSUNDEEP
javacalendar
PeakGen
PeakGen

Reputation: 23035

Java Calendar generates invalid month and date

Plase have a look at the below code

 Calendar date = Calendar.getInstance();
            initialClientLetterDate.setText(date.get(Calendar.YEAR)+"/"+date.get(Calendar.MONTH)+"/"+date.get(Calendar.DAY_OF_WEEK));

This generates the invalid "month" and "date". The output is 2014/09/06. Why is this? I just wanted to get current year, date and month.

Upvotes: 0

Views: 600

Answers (5)

Basil Bourque
Basil Bourque

Reputation: 340118

java.time.LocalDate

In modern Java, use the LocalDate class to represent a date.

The toString method generates text in standard ISO 8601 format YYYY-MM-DD. To get your desired output, swap the hyphen for a slash.

LocalDate ld = LocalDate.of ( 2025, Month.JANUARY , 23 ) ;
String output = ld.toString().replace ( "-" , "/" ) ;

Upvotes: 1

wittakarn
wittakarn

Reputation: 3162

You can do like as below code. You should not forgot to set locale.

public static void main(String args[]) {
    Calendar date = Calendar.getInstance(Locale.US);
    System.out.println(date.get(Calendar.YEAR) + "/" 
            + (date.get(Calendar.MONTH) + 1) + "/"
            + date.get(Calendar.DAY_OF_MONTH));
}

Upvotes: 2

Ekansh Rastogi
Ekansh Rastogi

Reputation: 2546

date.get(Calendar.YEAR) = Gives the current year date.get(Calendar.MONTH) = Gives the month of the year as an integer from 0 to 11, where 0 = Jan and 11 = dec date.get(Calendar.DAY_OF_WEEK) = Gives the day of the week from 0 to 6, where 0 = Monday

So if you want to get the current date you must do 

date.get(Calendar.YEAR)+"/"+(date.get(Calendar.MONTH)+1)+"/"+date.get(Calendar.DAY_OF_MONTH)

Upvotes: 0

Lyam260
Lyam260

Reputation: 1

DAY_OF_WEEK Returns an int (starting at 1?) for the day in the week so Friday would be 6, Month does the same except starting at 0 so 09 would be October.

http://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html#DAY_OF_WEEK

Upvotes: 0

Akash Thakare
Akash Thakare

Reputation: 23012

You are using DAY_OF_WEEK which is 6 for FRIDAYand MONTH starts from 0 not 1 so you have to add 1 in it.You can use DAY_OF_MONTH instead of DAY_OF_WEEK.

Upvotes: 5

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