Official Java Resources from Sun Microsystems
http://java.sun.com/— The main entry point for all Sun Java products and other resources.
http://java.sun.com/products/— This is the best starting point to locate and download the latest Java SDK, documentation, and the various specialty toolkits.
http://java.sun.com/docs/books/tutorial/index.html— This is the starting point for Sun's tutorials. These tutorials are under constant development and improvement.
http://java.sun.com/docs/books/jls/second_edition/html/jTOC.doc.html— The Java Language Specification (sometimes called the JLS). The concise specification on how Java is supposed to work.
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