I guess some of you would have heard of jdocs.com however for those who haven’t, JDocs.com is a super collection of Javadocs. JDocs is meant to a single window for all your Javadoc or rather Java API specification needs.
Not sure about method names/ params? Just check JDocs and browse to the Javadocs of the API concerned. The user comments on the API specs on JDocs also them more useful than the specs you might have on your local machine.
JDocs already has over 132 APIs on it and they seem to updated as the software versions change. Rather strange that nobody had this simple yet useful idea earlier.