How do I get Eclipse to show the entire javadoc for a class

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Can eclipse show the entire javadoc? i.e. all methods (and their descriptions), when i highlight an object reference?

for example, if I do System, it shows me

java.lang.System

The System class contains several useful class fields and methods. It cannot be instantiated.

Among the facilities provided by the System class are standard input, standard output, and error output streams; access to externally defined properties and environment variables; a means of loading files and libraries; and a utility method for quickly copying a portion of an array.

Since: JDK1.0

but that tells me very litte about what I can do with that. yes, I can use the intelligent dot completion, but that seems a bit cumbersome.

any pointers would be appreciated.

5 Answers

In the source editor hover mouse over some method or class name.

Then press

Shift-F2 (Open External Documentation)

Javadoc View will open the full documentation at the right position.

I know that this post is old. Nevertheless I would like to add a procedure for showing Javadoc in an easy way.

I use eclipse oxygen 4.7.1a which is an year 2017 build.

-> Just hover over any declaration/method/object/class and press F2 to focus and now at the bottom of the tooltip that appears, we can find icons/buttons that can take us to its Javadoc in browser or eclipse view.

shift+F2 directly opens the javadoc of the entity you are hovering over, in a browser in the eclipse.

For this method to work a javadoc needs to be attached to your source. See linking javadoc.

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