Link to home
Start Free TrialLog in
Avatar of rcmb
rcmb

asked on

ADD 180 Days to Current Date

I use
SimpleDateFormat sdf_new = new SimpleDateFormat("MM/dd/yyyy");
String date = sdf_new.format(new Date());

to display the current date in a jsp page.

How can I add 180 days to the resultant value so that the date value would equal 180 days from the current date?

RCMB
ASKER CERTIFIED SOLUTION
Avatar of CEHJ
CEHJ
Flag of United Kingdom of Great Britain and Northern Ireland image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
SimpleDateFormat sdf_new = new SimpleDateFormat("MM/dd/yyyy");
GregorianCalendar cal = new GregorianCalendar();
cal.set(Calendar.DATE, cal.get(Calendar.DATE) + 180);
String date = sdf_new.format(cal.getTime());
oh yeah... cal.add is better ;)
Calendar cal = Calendar.getInstance();
Date d = new Date();
cal.setTime(d);
cal.add(Calendar.DAY_OF_YEAR,180);
String date = sdf_new.format(cal.getTime());
Avatar of rcmb
rcmb

ASKER

CEHJ,

I get the following error

cal.add(Calendar.DATE, 180);
          ^

and
 

sdf.format(cal.getTime());
               ^

am I missing an import or something?

RCMB
Avatar of rcmb

ASKER

Here is my actual code now -- please point me in the correct direction.

SimpleDateFormat sdf_new = new SimpleDateFormat("MM/dd/yyyy");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, 180);
sdf.format(cal.getTime());
String date = sdf_new.format(new Date());

RCMB
import java.util.Calendar;
>>sdf.format(cal.getTime());

needs to be assigned to something of course:

String yourDate = sdf.format(cal.getTime());
out.println(yourDate);
Avatar of rcmb

ASKER

I already have import java.util.* in my import statement.

RCMB
Please show your (exact) current code and errors
>>String date = sdf_new.format(new Date());

The above line of course just shows the current date
Avatar of rcmb

ASKER

Here is my exact code:

SimpleDateFormat sdf_new = new SimpleDateFormat("MM/dd/yyyy");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE,180);
sdf.format(cal.getTime());
String date = sdf_new.format(cal.getTime());


My errors are:

Generated servlet error:
Compiling 1 source file
C:\jboss-3.2.3\server\default\work\MainEngine\localhost\personnel\jsp\prd_eaos_jsp.java:29 <idenitifer> expected
cal.add(Calendar.DATE,180);
          ^
C:\jboss-3.2.3\server\default\work\MainEngine\localhost\personnel\jsp\prd_eaos_jsp.java:30 <idenitifer> expected
sdf.format(cal.getTime());
               ^
Try

java.util.Calendar cal = java.util.Calendar.getInstance();
cal.add(java.util.Calendar.DATE, 180);
Avatar of rcmb

ASKER

Okay,

I have tried about every possible combination I can come up with. I am running JBoss 3.2.3 and not matter what I do the system fails on cal.add(

For some reason it gives me an identifier error.

I have searched the web and my syntext is correct (just as all of you have provided).

I tried just doing this
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE,180);

and it fails with the same error code.

I tried adding the java.util.... to the beginning of the code and it does not change the error.

VBScript is so much easier :-(

Any ideas?

RCMB
If you remove all code concerning Calendar, do the errors disappear?
Avatar of rcmb

ASKER

Yes - When I just have the SimpleDateFormat sdf_new...... and String date = .....

The page opens fine with the current date in the field box.

Curtis
Better post your jsp, including headers
Try this page:



<%@ page language="java" contentType="text/html" %>
<%@ page import="java.text.*" %>
<%@ page import="java.util.*" %>


<%
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE,180);
%>

<%= sdf.format(cal.getTime()) %>
Try this one:

Calendar cal = GregorianCalendar.getInstance();
instead of:
Calendar cal = Calendar.getInstance();

and the rest of the code remains the same.
Avatar of rcmb

ASKER

Okay - thanks to all for the help but CEHJ's initial answer was all that was needed. The real problem was I did not have the Java bin folder in my system path. Once I added that my errors disappeared and all worked.

Thanks to all for your patience.

R/Curtis
:-)