How to find the day of a particular date

Question

Hi,
I am working on an app which will display 15 days in retrospect with the date and day for any entered date. For example if the user enters June 15, 2001 the app has to display dates from June 1 and the corresponding day of those dates like sunday, monday... Is there any function which would help me.

Answer 1

use the java.text.SimpleDateFormat and java.util.Calendar classes
// look at the javadocs for SimpleDateFormat for mor info about the formatting
// string that is passed to the constructor
// the format below translates to : "Fri, Aug 17, 2001"
SimpleDateFormat formatter = new SimpleDateFormat ( "EEE, MMM d, yyyy" );
Calendar cal = Calendar.getInstance();
Date theDate = new Date();
cal.setTime( theDate );
for ( int i=0; i<15; i++ ) {
    String dateStr = formatter.format( cal.getTime() );
    System.out.println( dateStr );
    cal.add( Calendar.DAY_OF_YEAR , -1 );
}output of this code:
Fri, Aug 17, 2001
Thu, Aug 16, 2001
Wed, Aug 15, 2001
Tue, Aug 14, 2001
Mon, Aug 13, 2001
Sun, Aug 12, 2001
Sat, Aug 11, 2001
Fri, Aug 10, 2001
Thu, Aug 9, 2001
Wed, Aug 8, 2001
Tue, Aug 7, 2001
Mon, Aug 6, 2001
Sun, Aug 5, 2001
Sat, Aug 4, 2001
Fri, Aug 3, 2001