How to get Java API Javadocs to show up in Eclipse in Ubuntu

Question

I\'m here again with a docs question. At my university, when using Eclipse, when placing the cursor over a Java API method name (for example: .size() ), I get very nice documen

Answer 1

Go to your JRE settings (Window > Preferences > Java > Installed JREs), select your current, then Edit it and set the Source Attachment for rt.jar.

You might have to install the sun-java6-source or openjdk-6-source packages depending on what you are using.

For the Sun JVM, sources will end up in /usr/lib/jvm/java-6-sun-1.6.0.15/src.zip.

PS: I'd suggest to use Sun JDK and to set it as default with sudo update-alternatives --config java but this is more a side note.