[http://www.java.net] – A Java community website maintained by Sun.
[http://www.javaalmanac.com] – This is a good place to find the usage of certain techniques and sample code quickly.
[http://www.javaworld.com] – One of the earliest Java site. Weekly updates of Java technical articles.
[http://www.jguru.com] – A great Q&A forum for communicating Java technology.
They are two different DBs.
java DB must be based on java,it is Sun's database.
mysql can be used for many languages, such as C、C++、Eiffel、Java、Perl、PHP、Python、Ruby and Tcl
Hi N.Senthil Kumar
In java, class doesn't support multiple inheritance but interface does.
Please remember:java supports single inheritance but multi-realization.