Class javax.servlet.http.cookies can be used to access cookies on the client side. The following code demonstrates this technique. It checks the existence of cookie ‘MyCookie’.

boolean dcookiefound = false;

Cookie[] cookies = request.getCookies();

for(int nIndex=0;nIndex < cookies.length;nIndex++)
{
if(cookies[nIndex].getName().equals(“MyCookie”))
{
dcookiefound = true;
//desired cookie found, use it
}

}

if(dcookiefound == false)
{
//cookies not found.
}