This week's book giveaways are in the iOS and Features new in Java 8 forums. We're giving away four copies each of Barcodes with iOS: Bringing together the digital and physical worlds and Core Java for the Impatient and have the authors on-line! See this thread and this one for details.
cookies are just set of name and string value pair. You definitely can put more than one cookie, but you have to set it one by one in jsp. Here is some notes from netscape about cookie specs. Multiple Set-Cookie headers can be issued in a single server response. Instances of the same path and name will overwrite each other, with the latest instance taking precedence. Instances of the same path but different names will add additional mappings. However there are limitations: 4 kilobytes per cookie, 20 cookies per server or domain. Hope this answers your question