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Where to add this:

so, when I highlight a word in eclipse ide, I will get the help.

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To add Javadoc to Eclipse:

  • download as many Javadoc packages as you want (they should be in zip or jar archives).
  • Open your Eclipse preferences, and navigate to Java -> Installed JREs. Click on the default JRE you use, and click the Edit button on the right.
  • In the window that pops up, click Add External JARs in the right column, and navigate to where you have the archives saved (you may want to save them somewhere out-of-the-way because if you delete the archives, your Javadoc won't work anymore).
  • Select the archives, and click Open. This should recognize the Javadoc archives and help you with code-completion and documentation (you may have to restart your IDE for this to take effect).

You can find Java SE development kit 7 Documentation here

**You didn't specify what operating system you were on, so each OS may vary slightly.*

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I can't find the jsr118 docs – markon Jul 25 '10 at 15:50
and i use windows xp – markon Jul 25 '10 at 16:14
@mark It doesn't look like Oracle provides a downloadable Javadoc for the MIDP2.0 spec, only the HTML docs posted on their site. – squircle Jul 25 '10 at 21:01
Note that you don't need to extract the zip file, just add it in! – Ben Jan 5 at 16:17

Right Click the JAR file in Project Explorer -> Properties -> From the left pane choose Javadoc Location -> enter the URL of your jar documentation.

Generally you can Google for: javadoc lib-name and then pickup the URL of the first site suggested by Google - going up a level.

For example Google returned this:
so by going up one level, I mean:

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