Java developers must go to the 20 English technology website list (the order is not divided] http://www.javaalmanac.com - Java Developer Yearbook Book Online Version. To quickly find some Java skills Usage and sample code, 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 - There is a new article every week. http://www.developer.com/java - the 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 home page.
Http://www.javaworld.com - The earliest Java site. Update the Java technical article per week. http://www.devx.com/java - Devx Maintain 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 that discusses 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 the Java question, the initiator is good. http://www.ibiblio.org/javafaq/javafaq.html - Comp.lang.java FAQ Site - Collected questions and answers from the questions 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://java-source.net/ introduced by various OpenSource