Help in date!!

1)how do i increase the value of month in date object??
examples : 24-3-03 to 24-4-03
2)Can i use SQL method like this:
SELECT * FROM payment WHERE ExpirationDate < DateOfToday;
* The data contain in ExpirationDate is date
* DateOfToday is date object from my program...

1) Use GregorianCalendar instead of Date
GregorianCalendar today = new GregorianCalendar();
today.add(GregorianCalendar.MONTH, 1);
2) Yes. Either this (GETDATE() IS SQL SPECIFIC!, IT MAY BE DIFFERENT 4U)
SELECT * FROM payment WHERE ExpirationDate < GETDATE();
or this
PreparedStatement ps = new PreparedStatement("SELECT * FROM payment WHERE ExpirationDate < '?';");
ps.setString(1, "2003-12-25"); - DATE FORMAT SQL SPECIFIC!

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