Java: how to setup htmlunit

Answer 1

com.gargoylesoftware.htmlunit

Is a package in one of the jar files you've downloaded. You have to make sure that these jar files are on the "classpath" in order for Java to find the classes inside (Page, BrowserVersion++). If you're using Netbeans dumping the jar's in the lib folder will usually do the trick.

Answer 2

Now, I download htmlunit 2.7 and unzipped the folder, which contains a "lib" folder with a bunch of jar files in it. Where do I put that lib folder in my netbeans project folder so that I can use htmlunit?

First, register the libraries in the IDE.

1. In the IDE, choose Tools > Libraries to open the Libraries Manager.
2. Click New Library and provide a name for the library, e.g. "HTMLUnit"
3. With the "HTMLUnit" library selected, click on the "Add JAR/Folder..." button and select the jar file that was downloaded earlier and click OK to complete

Then, add the libraries to the project you are working on.

1. Select the project from the Project view, right-click and select "Properties"
2. Under the Libraries category, click on the "Add Library..." button and choose the HTMLUnit library and click OK to complete

(...) Where do the the com.gargoylesoftware come from?

From the library you have to add (more precisely, from the htmlunit jars).