Today(YES), Yesterday(NO!), date related problem.

[hiisikukko]

If only someone could help

All code(s) below gives me a current date,
but I also need to get tomorrows and yesterdays dates.

I think I can´t use simpledateformat because I need to import import java.sql.*;

So if anyone can tell me how to modify some of the codes below, It would be great. All codes gives me date 2004-08-03 but how can I get forexample 2004-08-02 or 2004-08-04??


these are what I have try to use without success

1.

java.sql.Date date = 
        new java.sql.Date((new GregorianCalendar()).getTime().getTime()); 
    jTextField2.setText(""+date);

2.

Calendar cal = GregorianCalendar.getInstance();
      DateFormat fmt = DateFormat.getInstance();
      String buf = fmt.format(cal.getTime());
      
         
       jTextField2.setText(""+buf);

3.

 java.util.Date today =
new java.util.Date();
java.sql.Date sqlToday =
new java.sql.Date(today.getTime()+1);
jTextField2.setText(""+sqlToday);

[mnuttall]

use the roll method of Calendar.

calendar.roll(Calendar.DAY_OF_YEAR, -1);
calendar.roll(Calendar.DAY_OF_YEAR, +1);

Make sure to test with Jan 1 and Dec 31.

[JGRobinson]

Also look at

http://forums.devx.com/showthread.php?s=&threadid=99744

Cheers
Graham

[yawmark]

Some other good resources:
Calculating Java dates: Take the time to learn how to create and use dates
Working in Java time: Learn the basics of calculating elapsed time in Java