Question

I need to add 28 days to a Date – I have tried this:

SimpleDateFormat df = new SimpleDateFormat("dd/MM/yyyy");
Date date1 = df.parse("01/10/2012");
long week = 1000 * 60 * 24 * 7;
date1.setTime(date1.getTime() + week);

but I got an error on this line: Date date1 = df.parse("01/10/2012");

the error: Type mismatch: cannot convert from java.util.Date to java.sql.Date

I also tried this:

Date Mydate = new Date(02,04,2012);
Calendar cal = Calendar.getInstance();  
cal.setTime(Mydate);  
cal.add(Calendar.DATE, 10); // add 10 days  
Mydate = (Date) cal.getTime();  

but I got an error when trying to see the Mydate value.

Answer 1

You need to change this line:

import java.sql.Date;

to this:

import java.util.Date;

Once you’ve done that, I think the best approach is:

Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, 2012);
cal.set(Calendar.MONTH, 3); // NOTE: 0 is January, 1 is February, etc.
cal.set(Calendar.DAY_OF_MONTH, 2);
cal.add(Calendar.DAY_OF_MONTH, 10); // add 10 days
Date date = cal.getTime();