*****Java develop Reference, best for you 《Java SE 7 Development Kit Documentation》
-----Java Platform, Standard Edition (Java SE) lets you develop and deploy Java applications on desktops and servers, as well as in today's demanding embedded environments.
Java offers the rich user interface, performance, versatility, portability, and security that today’s applications require.
-----We provides the Java Development Kit 1.7 API for java developer reference. Java 1.7 Reference and developer documentation.
----The document is the API specification for version 7 of the Java™ Platform, Standard Edition.
1.fix bugs;
2.support iOS 8 and iPhone 6;
3.more contents.
The Tutorials for JAVA 
JDoc-Java SE 7 API 
The API Specification for JAVA SE 9 