Website list (the following order is not divided] English website
Http://www.javaalmanac.com - Java Developer Yearbook Book Online Version. To quickly find the usage and sample code of some Java skill, this is a good place.
http://www.onjava.com - O'Reilly Java website. There is a new article every week.
http://java.sun.com - Official Java Developer Website - New article is published every week.
http://www.developer.com/java - Java Technical Article Website Maintained by Gamelan.com.
Http://www.java.net - Sun maintained a Java community site.
Http://www.builder.com - CNET's Builder.com website - all technical articles, mainly in Java.
Http://www.ibm.com/developerWorks/java - IBM's DeveloperWorks technology website; this is where Java Technology Homepage.
Http://www.javaworld.com - the earliest Java site. Update the Java technical article per week.
Http://www.devx.com/java - Devx maintained a Java technical article website.
Http://www.fawcette.com/javapro - JavaPro Online Magazine website.
Http://www.sys-con.com/java - Java Developers Journal online magazine website.
http://www.javadesktop.org - a Java desktop technology community site in Java.net.
http://www.theserverside.com - This is a website discussed all Java server-side technology.
Http://www.jars.com - Provide Java Comments Service. Includes a variety of Framework and applications.
http://www.jguru.com - A great Java technology resource community in the form of Q & A.
Http://www.javaranch.com - a forum, get where Java questions, the beginners are good.
Http://www.ibiblio.org/javafaq/javafaq.html - Comp.lang.java FAQ Site - Collects the issue of issues and answers from the Comp.lang.java newsgroup.
http://java.sun.com/docs/books/tutorial/ - Official Java Guide from Sun Company - It is very helpful for almost all Java technical features.
Http://www.javablogs.com - the most active Java Blog website on the Internet.
http://java.about.com/ - Java News and Technical Articles from About.com.
http://www.objectLearn.com/index.jsp
Chinese website
http://www-900.ibm.com/developerWorks/cn/java/index.shtml
http://diy.ccidnet.com/pub/Article/c317_a71330_p1.html Caidi.com J2EE topic
http://www.javaresearch.org/ Java Research Organization
Http://www.jdon.com/J Dao-Java and J2EE solution