difference between response.addCookie and response.setHeader

You can also choose to add cookies via response.setHeader(""Set-Cookie"....)
Why would you want to add a cookie using response.setHeader over response.addCookie? Are there any important differences of doing one over the other?

Thanks In advance
singh101Asked:
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sandeshjCommented:
setHeader method of response object is used to create an HTTP Header with the name and value given as string.
Eg:
response.setHeader("Content_Type","text/html");

addCookie() method of response object is used to add the specified cookie to the response.
Eg:
response.addCookie(Cookie yourSystem);

Both are different. You can't set a cookie using setHeader. Its for passing plain Name-Value Pairs in the Header of the response.
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singh101Author Commented:
I am under the assumption you can set a cookie using response.setHeader("Set-Cookie.....)
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sandeshjCommented:
Oh yes you're right..
You can use setHeader too, although not advisable because you have a more specialized api to do the same.

Specialised because cookie header is complicated...Refer:  http://msdn.microsoft.com/en-us/library/aa384321(VS.85).aspx

In order to make use of all these features of a cookie, you can set a cookie object and then use addCookie api appropriately.
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CEHJCommented:
The main difference is that a cookie has the ability to be persistent on the client machine

http://en.wikipedia.org/wiki/HTTP_cookie
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Mick BarryJava DeveloperCommented:
They both do the same thing
addCookie() just handles the formatting of the header for you

You should use addCookie() to avoid errors that can be made with setHeader()

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Mick BarryJava DeveloperCommented:
> The main difference is that a cookie has the ability to be persistent on the client machine

Thats incorrect btw, theres no difference
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