Browsing JDK Documentation
In the Explorer, click the Javadoc tab.
Right-click the Javadoc node and choose Add Local Directory.
In the file chooser, navigate to the JDK documentation and select the
docs
directory.
To view the documentation, select a class in the Source Editor and choose View
Javadoc Index Search from the main window.
See also
Mounting a Javadoc Filesystem
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