Depending on the product that you have installed, the Project Explorer view may contain the following features:
You
can drag and drop files from Windows® Explorer or the desktop into the
Navigator view.- View filtering is supported by selecting Filters from the Navigator view Menu button. Resources can be filtered by name, project type or working set. Files beginning with a period are filtered out by default.
- The status line shows the full path of the selected resource.
- Dragging a .java file from the Navigator view into a JSP file will insert a usebean tag, the same behavior that is exhibited when a .class file is dragged into a JSP file.
- Errors and warnings on resources (including Java™, HTML/JSP, and Links Builder errors
and warnings) are indicated with a red error
or yellow warning 
next to the resource with the error,
as well as the parent containers up to the project. This applies for all project
types, not only Web projects. - Items available from the New cascading menu in the project pop-up menu are context sensitive. All menus will have Project and Other options.
- All projects are automatically grouped by type.
Organization of the Project Explorer view
The Project Explorer view shows a custom view of a dynamic Web project. By default, dynamic web projects appear under a top-level category called Dynamic Web Projects. The following are some of the notable top-level objects that appear beneath the project node (based on default folder names).
Web content folder - This folder contains items to be published
to the server. By default, this folder will be named WebContent for
newly created static and dynamic Web projects.
Note: You can change the name
in the Web page of the project's Properties dialog. In a dynamic Web project,
changing the folder name will update the Java build output directory. You can change
the preference for the default folder name to be applied when creating new
Web projects by selecting .
- META-INF - This directory contains the MANIFEST.MF file, which is used to map class paths for dependent JAR files that exist in other projects in the same Enterprise Application project. An entry in this file will update the run-time project class path and Java build settings to include the referenced JAR files.
- WEB-INF - The directory where supporting Web resources for a Web application are kept (for example: .xmi files, .xml files, and web.xml.) Note that double-clicking on the web.xml file has the same effect as double-clicking on the Deployment Descriptor: it opens the Web Deployment Descriptor editor.