How can I set and delete a cookie within a JSP page ?

A cookie, mycookie, can be set / deleted using the following scriptlet : 

<%

    // creating a cookie

    Cookie mycookie = new Cookie("aName","aValue");

    response.addCookie(mycookie);

    // delete a cookie

    Cookie killMyCookie = new Cookie("mycookie", null);

    killMyCookie.setMaxAge(0);

    killMyCookie.setPath("/");

    response.addCookie(killMyCookie);

%>